Class / Patent application number | Description | Number of patent applications / Date published |
212175000 | HAVING MEANS FACILITATING ASSEMBLY OR DISASSEMBLY | 55 |
20080223805 | Portable Knockdown Trolley Hoist - A portable knockdown trolley hoist, comprising: an overhead trolley support member having a top portion and bottom portion opposing one another; a trolley having a plurality of upper roller bearings and a plurality of lower roller bearings, opposing first mounting plates, an extension boom, and hoist, the plurality of upper and the plurality of lower roller bearings opposing one another and adjacent the top portion and the bottom portion of the overhead trolley support member, respectively, each having shafts transversely mounted to the opposing first mounting plates, opposing raised mounts, each of which have opposing second mounting plates removably fastened one to other and sandwiching the overhead trolley support member therebetween, the trolley rollably mounted to the overhead trolley support member between the opposing raised mounts; opposing substantially upright legs, each of the opposing raised support members having at least two of the opposing substantially upright legs removably fastened thereto. | 09-18-2008 |
20090250423 | PIN CHANGING DEVICE AND METHOD - A pin removal assembly for use with an upper block of a crane includes a sheave support and a pin support. The upper block includes a frame, a plurality of sheaves, and a removable sheave pin that defines and axis of rotation for the sheaves and supports the sheaves within the frame. The pin removal assembly includes a sheave support mountable to the frame of the upper block and a pin support mountable to the frame of the upper block. The pin support is configured to support the sheave pin when the sheave pin is removed from the upper block. | 10-08-2009 |
20100072155 | Carbody Connection System and Crane Using Same - A mobile lift crane includes a carbody made from two side members and two end cross members connected to each other with a carbody connection that can be disconnected such that the side members and end cross members can be individually transported between job sites and reassembled at a new job site. Preferably the two side members are interchangeable with each other when making the carbody, and the two end cross members are also interchangeable with each other. Further, each of the side members and end cross members preferably has a section of a roller path and section of a ring gear attached to them while being transported and assembled. | 03-25-2010 |
20100170865 | Structural members for forming various composite structures - Structural members widely adaptable for use to build various composite structures and assemblies having horizontal and vertical supports, such as columns, beams and rails, are shown and described. The composite structural members include a longitudinal channel having a web and first and second legs. Each leg includes a plane that extends from a side of the web and is inclined relative to the web, and a cylinder is located at an edge of the leg that is spaced from the web. Various fittings can be used to engage at least one of the cylinders of the channel to fix the channel in position relative to a second, third and/or fourth channel to form the column, beam or rail. Further, select brackets can be used to attach together columns, beams and rails of the assembly. | 07-08-2010 |
20100224583 | COUNTERWEIGHT BLOCK AND ASSEMBLIES FOR CRANES - A counterweight block apparatus includes a pair of interconnecting counterweight blocks having top and bottom surfaces, the counterweight blocks forming a plane of interconnection along adjacent sides thereof; and a shear bar releasably secured between the adjacent sides of the interconnecting counterweight blocks, generally perpendicular to the plane of interconnection, to provide resistance to relative vertical movement of the interconnecting counterweight blocks along the plane of interconnection. In another aspect, each counterweight block includes in at least one side thereof an indentation from a top of the counterweight block to a depth more shallow than the thickness of the counterweight block, the indentation defining a lip for hand grabbing. An aperture may be formed through the rest of the thickness of the counterweigh block at each indentation, wherein a securing strap can be run through each aperture of a stacked plurality of counterweight blocks to secure them to each other. | 09-09-2010 |
20110147328 | LIFTING DEVICE FOR REPLACING DYNAMIC OR STATIC COMPONENTS OF HELICOPTER-TYPE AIRCRAFT - The present invention concerns a lifting device for replacing dynamic or static components of helicopter-type rotary wing aircraft. The device in one embodiment comprises a lifting means to move components between an installation/removal position and a loading/unloading position located near the aircraft, a supporting structure on which the lifting means is mounted, and support means rigidly attached to the supporting structure. The support means can rest on and be directly secured to the airframe of the aircraft. | 06-23-2011 |
20120138559 | MODULAR LOAD BEARING DEVICE INCLUDING COMPOSITE COMPONENTS - A modular structural load bearing device including light-weight composite structural members each including an elongated body having at least one internal recess for a cable in the recess or series of recesses. Preassembled and presized composite support members and connectors can form a modular structure, such as a crane. When used, end pieces or other components on an end of the elongated body can secure a cable. For assembly of the structural load bearing apparatus, connectors can be used with composite structural members that are light-weight with relatively thin walls while providing enhanced benefits for resisting the combination of tension, compression and buckling forces. | 06-07-2012 |
20130284688 | PORTABLE DERRICK SYSTEM, APPARATUS & METHODS - A portable derrick system for use in hoisting and lowering loads at a plurality of job sites, comprising, in combination: a boom subassembly, a boom head subassembly, a mast support subassembly, a mast head subassembly, a load-carrying line, a winch capable of cooperating with said line, power means for driving the winch, means for pivoting the boom assembly, means for controlling said pivoting means, the foregoing elements of the invention capable of being transported by humans to elevated positions such as, without limitation, rooftops and terraces, and wherein the aforementioned are capable of repeated assembly and disassembly at a plurality of job sites and serving to facilitate the elimination of the need for a street-level crane. | 10-31-2013 |
20160159622 | PORTABLE DERRICK SYSTEM, APPARATUS & METHODS - A portable derrick system for use in hoisting and lowering loads at a plurality of job sites, comprising, in combination: a boom subassembly, a boom head subassembly, a mast support subassembly, a mast head subassembly, a load-carrying line, a winch capable of cooperating with said line, power means for driving the winch, means for pivoting the boom assembly, means for controlling said pivoting means, the foregoing elements of the invention capable of being transported by humans to elevated positions such as, without limitation, rooftops and terraces, and wherein the aforementioned are capable of repeated assembly and disassembly at a plurality of job sites and serving to facilitate the elimination of the need for a street-level crane. | 06-09-2016 |
212176000 | Of sectional vertical support from boom | 4 |
20090107945 | Folding Boom - The invention concerns a collapsible boom, such as a crane jib, concrete pump, camera support, searchlight mast and similar narrow far-projecting structures with several elements ( | 04-30-2009 |
20140332486 | JACKING TOWER INSTALLATION SYSTEM - A jacking tower installation system comprises a jacking tower having at least two forward and at least two rear legs, wherein each of the legs is supported on one of a plurality of support stands attached to and horizontally offset from the leg, the legs including dollies which enable horizontal movement of the jacking tower and lifts capable of raising and lowering the jacking tower clear of the sill beams of a cargo container crane, such that the legs of the jacking tower can be lifted and positioned over and lowered onto the sill beams. | 11-13-2014 |
20150014266 | REVOLVING TOWER CRANE - The present disclosure relates to a mobile revolving tower crane with a crane tower consisting of individual lattice pieces and with a main arm that is articulated in a rockable manner to the tower via a rocking mechanism, or with a rockable tip, wherein the crane tower comprises a climbing device. | 01-15-2015 |
20160185575 | CRANE - The present invention relates to a crane having a multiple-piece longitudinal structural part, in particular a tower or boom, whose pieces comprise corner arms or horizontal beams which can be placed next to one another and which can be releasably connected to one another by a mortise and tenon joint, wherein the mortise and tenon joint comprises a tongue which can be plugged into a tongue receiver and which can be fixed by means of at least one crossbar which can be inserted transversely to the plug-in direction of the tongue. In accordance with the invention, the crossbar of the mortise and tenon joint can be spread apart by a spreading device such that the pieces of the longitudinal structural part to be connected can be clamped to one another by spreading apart the crossbar. | 06-30-2016 |
212177000 | Of boom sections | 17 |
20090159547 | BOOM COMPONENT DISPLAY APPARATUS - A boom component display apparatus | 06-25-2009 |
20100038333 | Telescopic Crane Boom - A telescopic crane boom including a plurality of telescopically assembled tubular box sections including a base box section and an innermost box section having an open cross-section, and a boom head with a frame fixed to the outside circumference of the innermost box section. The head has a plurality of deflecting pulleys mounted on the frame, but no part extending inside the open cross section on the innermost base box section, whereby at least one additional box section can be inserted into the innermost box section in order to extend the boom. | 02-18-2010 |
20100213152 | METHOD AND DEVICE FOR ATTACHING AND REMOVING AN ADDITIONAL DEVICE TO AND FROM THE MAIN JIB OF A MOBILE CRANE - The invention relates to a method and to a device for attaching and removing an additional device comprising individual elements to and from the main jib of a mobile crane using no auxiliary crane. In the method according to the invention, a partial piece ( | 08-26-2010 |
20100252522 | Auxiliary Device For Installing The Lower And Upper Jib Support Of An Adjustable Auxiliary Boom On A Mobile Crane - An auxiliary device for equipping the main boom of a mobile crane with an auxiliary boom, wherein a support is mounted near the head of the main boom, by means of which the lifting cable of the main boom may be run to a connection point on the auxiliary boom. The invention further relates to a method for equipping with an auxiliary boom. | 10-07-2010 |
20100282700 | TELESCOPIC CRANE WITH SELF-MOUNTING BRACING DEVICE AND METHOD OF MOUNTING A BRACING DEVICE - The invention relates to a system for bracing a telescopic crane, in particular a mobile crane, with a bracing unit which can be mounted on the jib. The bracing unit comprises erectable bracing supports and a holding frame for securing the bracing unit to the jib. The holding frame has a cross-section which is open at the top and allows the jib to be inserted from above the bracing unit The invention also relates to a method of positioning and mounting such a bracing unit on the jib of a telescopic crane | 11-11-2010 |
20110233165 | CONNECTION SYSTEM FOR CRANE BOOM SEGMENTS - A crane has a boom with a boom segment connection system. The boom includes at least a first and second boom segment each with a longitudinal axis and a first and second end, the second end of the first segment being coupled to the first end of the second segment, and at least one first connector on the second end of the first segment respectively mating with at least one second connector on the first end of the second segment. The first and second connectors each include at least one extension having a through-hole there through. The through-hole has an axis perpendicular to the longitudinal axis and positioned in the extensions such that all through-holes of mating first and second connectors are aligned when the boom segments are aligned. In one aspect of the invention, the first connector includes a first alignment surface and the second connector includes a second alignment surface that engages with the first alignment surface such that when the first and second alignment surfaces are fully engaged, the through-holes through the extensions in the connectors are aligned such that a main pin can be inserted through the through-holes of all extensions in the first and second mating connectors even if the boom segments are not axially aligned. In another aspect of the invention, the connectors include stop surfaces, and the placement of the stop surfaces on the connectors is such that, when identical boom segments are positioned such that a main pin can be inserted through the through-holes in the extensions of the connectors on some chords of the boom segments, the stop surfaces cooperate to align the through-holes in the extensions of the connectors on other chords when the stop surfaces contact one another. | 09-29-2011 |
20120067840 | PINNED CONNECTION SYSTEM FOR CRANE COLUMN SEGMENTS - A crane includes first and second column segments. At least a first, third and fifth connector are located on the first segment, respectively mating with at least a second, fourth and sixth connector on the second segment. Each of the connectors includes at least a first extension having a through-hole positioned in the extension such that the through-holes of mating connectors are aligned when the column segments are aligned. A first pin fits tightly through the through-hole of the first extension on the first connector and the through-hole of the first extension on the second connector to hold the first and second connectors together. A second pin fits loosely through the through-hole of the first extension on the third connector and the through-hole of the first extension on the fourth connector to hold the second and fourth connectors together. The connectors also include a compressive load bearing surface. | 03-22-2012 |
20120080397 | LATTICE MAST CRANE AND LATTICE MAST BOOM - A lattice mast crane having a lattice mast boom which can be luffed up in a vertical luffing plane and which comprises a pivotal connection piece, a plurality of lattice pieces releasably connectable to one another, and a head piece, with the lattice mast boom having a two-strand or multi-strand region, wherein at least one side part is releasably arranged at the pivotal connection piece and the two-strand or multi-strand region is arranged directly or indirectly at the pivotal connection piece and/or directly or indirectly at least one side part. | 04-05-2012 |
20120175333 | METHOD OF CONNECTING CRANE SUSPENSION ASSEMBLY SECTIONS TOGETHER AND FRAME MOUNTED ASSEMBLY USED THEREFORE - A method of connecting sections of a crane suspension assembly together includes attaching a frame to a member of a first section; connecting a tension member between the frame and a connector used in the assembly; moving the tension member so that the connector pivots about a pin to a position where a second hole in the connector is in alignment with a hole in a second section member; putting a second pin through the hole in the connector and the hole through the second section member; and disconnecting the tension member from the connector. The method may also include attaching a frame with a winch to a section of the crane suspension assembly; connecting a line from the winch to the connector; activating the winch to move the connector so that it pivots about a pivot axis; and securing the connector in its second position. | 07-12-2012 |
20130270208 | CONNECTION SYSTEM FOR CRANE COLUMN SEGMENTS - A crane column segment connection system includes first and second column segments with a connector on the second end of the first segment mating with a connector on the first end of the second segment. The connectors each include at least one extension having a through-hole. The through-holes have an axis and are positioned in the extensions such that all through-holes of mating connectors are aligned when the column segments are aligned. In one aspect, the connectors include alignment surfaces cooperating such that when the first and second connectors are being brought together during column assembly, the alignment surfaces guide the column segments in two dimensions within a plane transverse to the axis of the through-holes into a relative position such that the through-holes through the extensions in the connectors are aligned. | 10-17-2013 |
20140027398 | METHOD OF ASSEMBLY OF A MOBILE CRANE, AND MOBILE CRANE - Method for the assembly of a mobile crane, particularly a telescopic crane, at a construction site, having a main boom as well as at least one boom enhancement loaded on a means of transport, and comprising at least one lattice section, which method has the method steps of moving the mobile crane and/or the means of transport, to coarsely align the crane main boom and at least one lattice section of the boom enhancement to each other, connecting the crane main boom to the lattice section by means of one or more traction means, and raising the main boom, which results in traction being applied to the one or more traction means, to align the axes of the junctions of the main boom and of the lattice section at least partially for the subsequent assembly. | 01-30-2014 |
20140061144 | CRANE - A crane includes: a boom; a jib that is provided on a leading end side of the boom; and a strut that is provided at one or both of a leading end portion of the boom and a base end portion of the jib, and to which a jib support pendant is connected, the strut, to which the pendant is connected, being provided with strut rotationally moving means having: a first bar-like member rotationally connected, at a first end portion thereof on one side, to a leading end portion of the strut on an opposite side thereof to a side, on which the pendant is connected; and a direct acting apparatus that applies, to the first bar-like member, a force pulling the first bar-like member toward the other side along a longitudinal direction of the first bar-like member. | 03-06-2014 |
20140083964 | CRANE AND CRANE ASSEMBLING METHOD - Provided is a crane which comprises a luffing jib including a lower jib and an upper jib coupled to the lower jib in such a manner as to be separable from the lower jib, the lower jib is attached to a head of a boom to have a laid-down posture at a position between the boom and a strut when the upper jib is separated from the lower jib, when the boom is lowered and laid down to allow the head of the boom to come into contact with a ground and when the strut is lowered and laid down to allow a distal end of the strut to come into contact with the ground, and the lower jib has a length which causes no interference with the strut when the lower jib has the laid-down posture at the position between the boom and the strut. | 03-27-2014 |
20140263140 | RAISABLE-LOWERABLE MEMBER - Disclosed is a raisable-lowerable member which comprises a boom and a jib. The boom comprises a first supporting portion configured to rotatably support a jib foot when the jib is set in a protruding posture; and a second supporting portion configured to rotatably support a supportable portion of the jib when the jib is set in an enfolded posture. A position adjusting and holding unit of the jib is configured to couple, to the frame, a specific site of the second link in such a manner that a relative position of the second link with respect to the frame in a rotational direction of the second link is adjustably changed to allow the rotational axis of the second joint portion to become coincident with the rotational axis of the jib foot, and to hold the second link at the changed relative position. | 09-18-2014 |
20140353272 | JIB ATTACHMENT/DETACHMENT MECHANISM - A jib attachment/detachment mechanism to mount a jib on a boom head includes a guide mechanism including a guide roller and a guide support configured to guide engaging portions of a jib support to positions of engagement with shaft pins of a boom head when the jib support is pulled up with a wire by using a winch and to prevent change of a state of the wire pulled up by the winch when the jib support is rotated around the shaft pins by contracting a cylinder. | 12-04-2014 |
20150008205 | METHOD OF ASSEMBLING A CRANE AND COUPLING SECTION, TELESCOPIC BOOM AND CRANE - The invention relates to a method of assembling a crane having a telescopic boom which has a coupling section, a telescopic cylinder supported therein and at least one telescopic section, wherein at least one telescopic section is transported to the site of deployment separately from the coupling section and the at least one separately moved telescopic section is drawn, in particular drawn slowly, into an outer section, in particular into the coupling section, in the assembly position by the telescopic cylinder by means of an auxiliary assembly head. | 01-08-2015 |
20150102003 | AUXILIARY DEVICE FOR A CRANE AND CRANE COMPRISING SAID AUXILIARY DEVICE - Auxiliary extension device for a crane provided with a telescopic extendable arm having at least one end segment provided with a free end, wherein the auxiliary extension device is made of one or more composite materials. | 04-16-2015 |
212178000 | Of counterweight from hoist | 3 |
20110031202 | LIFT CRANE WITH MOVEABLE COUNTERWEIGHT - A lift crane includes a carbody; a rotating bed comprising a counterweight support frame; a boom; a counterweight unit supported on the counterweight support frame in a moveable relationship with respect to the counterweight support frame; and a counterweight unit movement device connected between the rotating bed and the counterweight unit to move the counterweight unit toward and away from the boom. The crane is configured such that during crane operation, the moment generated by the counterweight unit acts on the rotating bed predominantly through the counterweight support frame. Alternatively, the crane can include a mast. In some embodiments the same basic crane is configured to be set-up with two different counterweight options, i) a counterweight unit directly supported on the counterweight support frame and ii) a counterweight support beam moveably connected to the remainder of the rotating bed and a counterweight unit supported on the counterweight support beam. | 02-10-2011 |
20120160795 | COUNTERWEIGHT LOADING AND UNLOADING DEVICE AND MOVABLE CRANE - A counterweight loading and unloading device and a movable crane have a freestanding pallet ( | 06-28-2012 |
20130119007 | VEHICLE FOR TRANSPORTING BALLAST WEIGHTS - A vehicle ( | 05-16-2013 |
212179000 | Of traversing hoist from support | 22 |
20080217277 | Portable hoist assembly mounting systems and methods - The system and method of the present invention provide support for a holster mounting into which the vertical support of a portable hoist assembly is inserted. Disclosed is a saddle mount for the holster mounting usable on the top of a wall. Also disclosed is a floor supported base and cart assembly for the holster mounting. | 09-11-2008 |
20080237170 | Extension Bridges and methods of tender assist - An extension bridge is provided that comprises at least one modular tank affixed to the deck of a vessel, and a pipe bridge spanning the distance between the at least one modular tank and an offshore platform. Alternatively, the extension bridge comprises spaced apart first and second extension beams, which are removeablely and independently affixed to the deck of a vessel. At least a portion the first and second extension beams extend beyond the transom of the vessel. The extension bridge further includes at least one modular tank affixed to the first and second extension beams and a pipe bridge affixed to the at least one modular tank furthest from the vessel and an offshore structure. | 10-02-2008 |
20080257844 | Movable Independent Crane System Used Temporarily For Moving or Replacing Components and Mounting Wind Generators - Disclosed is a movable independent crane system for moving or replacing components during maintenance operations and for mounting wind generators including auxiliary portal crane ( | 10-23-2008 |
20080314853 | CLIMBING AND SUPPORT SYSTEM FOR PUMPING TOWER - A climbing and support system is provided for a support structure having at least one vertical support member extending through at least one opening in a floor structure. The climbing and support system includes a ladder assembly attached to the vertical support member. A climbing cylinder arrangement and a locking bar structure are engageable with the ladder assembly, and are pivotally supported outside the vertical support member on the floor structure for vertically moving and supporting the support structure relative to the floor structure. | 12-25-2008 |
20090173707 | Portable hoist assembly mounting systems and methods - The system and method of the present invention provide support for a holster mounting into which the vertical support of a portable hoist assembly is inserted. Disclosed is a saddle mount for the holster mounting usable on the atop of a wall, a waste receptacle or a beam. Also disclosed is a floor supported base and cart assembly for the holster mounting. | 07-09-2009 |
20110147329 | LOAD TRANSPORTATION SYSTEM - The invention relates to a high-efficiency load transportation system for use in the building construction industry. The system utilises a hoisting apparatus ( | 06-23-2011 |
20110266240 | MODULAR MATERIAL HANDLING SYSTEM - A modular material handling system includes a base portion removably connectable to a machine tool frame, the base portion including a hollow stanchion with a first end to go against a machine frame coupled to a compression plate by a threaded mounting stud and a second end to couple to a hollow pivot post coupled by a thrust bearing, with a shaft extending through the stanchion and pivot post and coupled at a lower end to the mounting stud and at an upper end to a retaining nut, and further including an arm extending from the pivot post to carry a movable shuttle and lifting mechanism. | 11-03-2011 |
20120118846 | ASSEMBLING AN AUXILIARY LIFTING UNIT ON A MOBILE CRANE - The invention relates to an assembly system for a mobile crane auxiliary lifting unit comprising auxiliary lifting unit assembly fastenings which are coupled to the auxiliary lifting unit and serve to fasten the auxiliary lifting unit to the crane, and comprising an assembly unit which can move the auxiliary lifting unit assembly fastenings into an assembly position. It also relates to an assembly installation for a mobile crane auxiliary lifting unit, comprising such an assembly system and comprising a sub-structure. A footing support for a mobile crane auxiliary lifting unit and a method for assembling a mobile crane auxiliary lifting unit are also disclosed. | 05-17-2012 |
20130098859 | CRANE FOR HANDLING OF WIND TURBINE GENERATOR COMPONENTS AND METHOD OF HOISTING OF SUCH A CRANE - A crane capable of handling of major components during installation or servicing of wind turbines, comprises a main body ( | 04-25-2013 |
20130146555 | BASE SUPPORT FOR HOISTING APPARATUS - A base support for mounting a hoisting apparatus over an opening. The base support comprises a plurality of elongated framing members coupled to each other in a closed polygonal arrangement sized and shaped to surround the opening. The polygonal arrangement has a plurality of corners where two of the framing members meet. The base support also comprises a hoisting apparatus bracket securable to at least one of the framing members and having a hoisting apparatus mounting assembly for mounting the hoisting apparatus thereto. | 06-13-2013 |
20140001138 | PORTABLE CRANE ASSEMBLY FOR USE WITH MARINE VESSELS | 01-02-2014 |
20140190919 | BRIDGE CRANE ASSEMBLY AND A METHOD FOR INSTALLING THE SAME - The invention relates to bridge crane assembly and a method for installation of a bridge crane. The invention is especially applicable for use in service and repair of vehicles and other heavy equipment in field conditions, such as crisis areas. The bridge crane assembly is supported by two containers ( | 07-10-2014 |
20150048043 | HEAVY LIFTING APPARATUS AND METHOD - A crane apparatus and method are described for lifting a heavy load such as a wind-turbine generator unit | 02-19-2015 |
212180000 | Vehicle support | 9 |
20090173708 | TRUCK RACK AND LOADING/UNLOADING SYSTEM - A multi-use truck bed apparatus, comprising a first rack assembly, a second rack assembly, a base assembly coupled to the truck, wherein the first rack assembly and second rack assembly are coupled to the base assembly, and a lifting mechanism, wherein the lifting mechanism comprises a winch coupled to the second rack assembly. | 07-09-2009 |
20100084357 | Trunnion Transportation System and Crane Using Same - A mobile lift crane includes a carbody and at least four crawlers attached to the carbody, each crawler having a crawler frame attached to the carbody by a trunnion having an axis. The crawler frame is attached to the carbody so as to be able to pivot with respect to the carbody about the axis of the trunnion. The crane also includes a rotating bed rotatably connected to the carbody such that the rotating bed can swing with respect to the crawlers and a boom pivotally mounted on a front portion of the rotating bed. A linear actuator is connected between the crawler frame and the carbody and extends through the trunnion. | 04-08-2010 |
20100200529 | Removable Truck-Mounted Crane - A truck-mounted crane is disclosed. The truck-mounted crane may include an elongated pole member, a pivoting arm pivotally attached to the elongated pole member, a support member secured to the elongated pole member, an extension member secured to the support member, an elongated securing member, and an anchoring member. When secured to a truck, the support member may rest on the rim of a truck bed with the secured extension member being positioned within a socket of the truck bed rim. In such configuration, one end of elongated pole member may be pivotally attached to the pivoting arm and the other end of the elongated pole member may be secured to a cargo loop of a truck using the elongated securing member and an anchoring member. | 08-12-2010 |
20100301001 | Hoist attachment for skid steer - The hoist attachment for skid steer includes a base frame with a mounting bracket and ball joint brackets to securely mount the hoist attachment to the skid steer. A telescoping boom is pivotally mounted to the top of the base frame. A pipe rack may be disposed adjacent the top of the base frame to store pipes or additional equipment. Pairs of hydraulic and manual support legs are attached to the base frame to stabilize the hoist attachment during working conditions. The power source for the hoist attachment is directly supplied by the hydraulic system in the skid steers. The hoist attachment includes controls operating the primary winch, boom, and hydraulic support legs. The base frame also includes a plug to which a remote may be attached for remote operation, the plug being connected to an electrical power source. | 12-02-2010 |
20120211456 | Portable Hitch-mounted Hoist Device - A portable hitch-mounted hoist device includes a lifting mechanism which applies a jack to supply power; a rotating mechanism having a dual bearing; a length-adjustable supporting mechanism; and a T-shaped mounting mechanism. The portable hitch-mounted hoist device has simple structure and is easy to install and detach. | 08-23-2012 |
20130075353 | Foldable Lifting Apparatus - The present invention is a self-locking folding crane apparatus that can be left on a vehicle or cart while it is in either an operative or stowed state. Unlike all other portable cranes that were found in prior art either singly or in combination, the present invention requires no assembly or disassembly between uses. | 03-28-2013 |
20140209552 | RAISABLE-LOWERABLE MEMBER FOR CRANE - Provided are a raisable-lowerable member capable of shortening a time required for assembling and disassembling of a crane, and a crane comprising the raisable-lowerable member. The raisable-lowerable member comprises: a boom attachable to an upper slewing body of the crane turnably about a boom-pivot-turn-axis in a raising-lowering direction; and a mast to be driven so as to be turned about a mast pivot-turn-axis parallel to the boom-pivot-turn-axis. The boom includes a boom body, a boom foot joined to a basal end of the boom body and adapted to be attached to the upper slewing body turnably about the boom-pivot-turn-axis, and a mast mounting portion joined to the basal end of the boom body. The mast has a basal end which includes a mast foot to be attached to the mast mounting portion turnably about the mast pivot-turn-axis. | 07-31-2014 |
20140291267 | Cylinder Retraction System, Boom Device and Crawler Crane - A cylinder retraction system causes a crawler side frame hoisting hydraulic cylinder, swingably suspended on a ventral surface side of a lower boom, to swing between a retracted attitude, in which the hydraulic cylinder is set along a ventral surface of the lower boom, and an operating attitude in which the hydraulic cylinder is oriented along a vertical direction. As the rod of the hydraulic cylinder, currently having the operating attitude, is contracted by a predetermined extent, the rod front end of the hydraulic cylinder is guided by the guiding portion until the hydraulic cylinder takes on the retracted attitude. As the hydraulic cylinder, currently having the retracted attitude, is extended by a predetermined extent, engagement between the rod front end of the hydraulic cylinder and the guiding portion is released so as to allow the hydraulic cylinder to take on the operating attitude. | 10-02-2014 |
212181000 | And having motor to swing boom | 1 |
20090084747 | Device for lifting and moving window frames - Provided as a hoist system for installing a plurality of panels of a panel set onto a building structure at a jobsite. The hoist system comprises a beam assembly configured to hoist the panels and sequentially offload the panels from the beam assembly onto the building structure. The beam assembly comprises an elongate hoist beam, a lifting lug, a plurality of trolleys mounted on one of the opposing ends of hoist beam, and a drive mechanism operative to reposition the lifting lug along the hoist beam such that the hoist beams maintain a substantially horizontal or level orientation. | 04-02-2009 |