Class / Patent application number | Description | Number of patent applications / Date published |
254418000 | VEHICLE ATTACHED JACK | 53 |
20090127531 | Medical Imaging Leveling - A high accuracy medical trailer leveling system capable of detecting at least three level orientations including level along a longitudinal direction, level along a lateral direction at the front of the trailer, and level along a lateral direction at the rear of the trailer. The system also includes sensors that detect a level orientation in the longitudinal direction at the front of the trailer and a level orientation in the longitudinal direction at the rear of the trailer. A touch pad has buttons for controlling the system and a display screen, the display screen being capable of displaying a level condition in a particular location of the trailer and direction. The display screen can display the level orientation of side to side, front; side to side, rear; and front to back, and can also display the angle of inclination. One set of lights on the control pad indicates which jacks to actuate to level the vehicle, and another set of lights indicates which jacks are being actuated. | 05-21-2009 |
20090189134 | Perceived Jack Position Drift Compensation Method and Apparatus - A controller commands a jack drive to extend and retract a jack leg relative to a jack base along a stroke having retraction and extension limits. The controller updates a perceived present leg position value in response to position change signals from a position change sensor. The controller occasionally applies compensation factors to the perceived present leg position value in the extension direction. The controller resets the perceived present leg position value whenever the jack leg reaches the retraction limit. | 07-30-2009 |
20090236577 | Dual Mode Jack Foot - The dual mode jack foot of the present invention is designed for attachment to the base of most commercially available trailer jacks. The inventive jack foot includes a housing pivotally attached to an end of a trailer jack, and first and second types of trailer support mechanisms attached to the housing approximately 90-degrees apart. The housing is pivotable between a first position wherein the first type of trailer support mechanism is deployed for use, and a second position wherein the second type of trailer support mechanism is deployed for use. | 09-24-2009 |
20100308291 | Automated RV Support Leg Adjustment System - A computerized control system for automating the process of connecting, disconnecting and leveling a fifth wheel RV. This system replaces the manually operated up/down pushbutton switches that control the movement of the motorized supports legs at the front of the RV. It is connected to the RV's battery and support legs motor. When it is time to disconnect the fifth wheel tow vehicle from the RV, the user presses the “Disconnect” button. The system automatically moves the RV's support legs down until it detects that the RV is at the disconnect position and then stops. The user can then disconnect the fifth wheel normally. When it is time to level the RV, the user presses the “Auto Level” button and the system automatically lowers the RV to a level position. When it is time to reconnect the RV to the truck, the user presses the “Connect” button and the system automatically raises the RV back to the exact same height as before it was disconnected. After the RV and the truck have been connected, the final step is to fully retract the RV legs to travel height. The user presses the “Retract” button which causes the system to raise the RV legs and then automatically stops when they have reached travel height. If the user needs to manually adjust the up/down position of the RV for any reason, the system has “Up” and “Down” buttons that provide the same functionality as the RV's up/down switches it replaced. | 12-09-2010 |
20100320431 | Jack - A jack for raising a load, the jack being adapted to be fixed to the load; the jack comprising driving means coupled to a linkage which can be driven from an upper position to a lower position in order to raise the load, the driving means comprising a rotating crank for driving the linkage whereby in one revolution the crank drives the linkage from the upper to the lower and back to the upper position, the linkage being a parallelogram linkage comprising a base plate pivotally attached to support arms pivotally secured to the load whereby in the lower position the support arms of the linkage are substantially perpendicular to the base plate to raise the load. | 12-23-2010 |
20120241701 | Automated RV Support Leg Adjustment System - An auxiliary system for operating at least one motor operatively connected to first and second legs of a 5th Wheel RV comprising a calibration system that stores level position angular displacement data when the 5th Wheel RV is in a substantially level position and disconnect position angular displacement data when the 5th Wheel RV is in a disconnect position, a disconnect system stores pre-disconnect position angular displacement data immediately prior to disconnection of the 5th Wheel RV from the vehicle and operates the first and second motors based on the disconnect position angular displacement data and pre-disconnect position angular displacement data to displace the 5th Wheel RV to allow the 5th Wheel RV to be detached, and a leveling system operates the first and optionally second motors based on the level position angular displacement data to place the 5th Wheel RV in a substantially level position. | 09-27-2012 |
20130299759 | SYSTEM AND METHOD FOR PREVENTING VEHICLE THEFT - A system for preventing a vehicle theft has vehicle having wheels, and means for lifting the vehicle when it is left by an owner or a driver so that the wheels are located above a ground so that a thief cannot driver or move the vehicle with the wheels in contact with the ground. | 11-14-2013 |
20140367625 | Jockey Wheel - A jockey wheel includes at least one ground engaging wheel; a mount for mounting the jockey wheel to a frame of a trailed vehicle; a jockey wheel post carrier for carrying a jockey wheel post; a coarse height adjuster for coarsely adjusting the height of the jockey wheel post, wherein the coarse height adjuster includes a locking selector for selecting a jockey wheel post height, the locking selector being biased into a locking position. | 12-18-2014 |
20150108418 | LEG LIFTING MECHANISM FOR TABLE SAW - A leg lifting mechanism for a table saw including a circular saw blade extending upward from an upper cutting surface, and a base mounted under a stand, the base having first and second leg assemblies, a first wheel assembly pivotably secured to the first leg assembly, and at least two second wheel assemblies secured to the second leg assembly is provided with a foot pedal including two side flanks pivotably secured to the first leg assembly, each of the side flanks having a straight edge and a cam edge. Clockwise rotation of the foot pedal about the first wheel assembly inward moves the cam edges on top of the first wheel assembly until portions of the straight edges grappingly engage the top of the first wheel assembly and portions of the first and second leg assemblies are lifted above the supporting surface. | 04-23-2015 |
20160251001 | VEHICLE LIFT SYSTEM | 09-01-2016 |
20190143947 | QUICK DOLLY HEIGHT ADJUSTMENT DEVICE | 05-16-2019 |
254419000 | Semi-trailer landing gear | 9 |
20080224113 | Support Jack - A support jack, in particular for supporting semitrailers, includes a vertically telescopically displaceable supporting element having an outer sleeve and an inner sleeve, each sleeve having a rectangular cross-section with four sidewalls in each case. At least one sidewall at least of the inner sleeve has an additional wall plate. Another alternative proposes that at least one sidewall at least of the inner sleeve consists of a wall plate which the two adjacent sidewalls are fixed. An arrangement of such a support jack on the lower side of a vehicle is also described. | 09-18-2008 |
20090090896 | Semitrailer Landing Gear - A semitrailer landing gear, particularly for supporting trailers, including a supporting element, which can be telescopically displaced in the height thereof and which has an outer sleeve and an inner sleeve, the outer sleeve having a fastening flange for placing on a vehicle. The aim of the invention is to develop semitrailer landing gears with a reduced weight as well as with favorable manufacturing costs. To this end, the invention provides that at least one lateral wall of the outer sleeve and/or of the inner sleeve is provided with an angled wall section extending in an axial direction. | 04-09-2009 |
20090321696 | LIFTING DEVICE - The invention relates to a lifting device ( | 12-31-2009 |
20130187106 | LIFTING DEVICE - The invention relates to a lifting device, comprising a shank tube and a support tube movable with respect thereto, wherein on the shank tube a lifting gear mechanism is arranged which comprises an input shaft arrangement for connecting a drive device and an output shaft arrangement for driving a lifting spindle, wherein the input shaft arrangement comprises a hollow shaft and an axially movable gearshift shaft which is arranged coaxially with respect to the hollow shaft, wherein the hollow shaft serves for the rotationally fixed arrangement of a large-diameter gearwheel, and the gearshift shaft serves for the rotationally fixed arrangement of a small-diameter gearwheel, and engagement devices are provided on the hollow and gearshift shafts which can be put in coupling engagement by axial movement in order to change the transmission ratio. | 07-25-2013 |
20130334480 | LANDING GEAR CONTROL SYSTEM FOR TRAILERS - A landing gear system for a trailer is described. The landing gear system includes two jacks, each with a first tubular body in which a second tubular body is telescopically mounted, a hydraulic chamber and a pneumatic chamber. The system includes a hydraulic fluid reservoir, a pneumatic fluid source, a pneumatic manifold in pneumatic fluid communication with the pneumatic source and in pneumatic fluid communication with said hydraulic reservoir and a hydraulic manifold in hydraulic fluid communication with the hydraulic reservoir. Pneumatically operated hydraulic pumps are included, along with a central control mechanism attached to the pneumatic manifold and disposed to simultaneously control pneumatic flow into the pneumatic chambers of the jacks and to pneumatically operated hydraulic pumps. Separate pneumatically operated hydraulic valve are provided to individually control hydraulic flow from the jacks. | 12-19-2013 |
20140048759 | Length-Adjustable Telescopic Tube, Support Jack and Assembly Process - A length-adjustable telescopic tube ( | 02-20-2014 |
20140077140 | Powered Jacking Leg - Disclosed is a gearbox for a powered leg assembly for trailers. The gearbox includes a plurality of gears mounted in a cage, the cage being displaceable from a first low speed position through a neutral position to a second high speed position, and a lever coupled to an eccentric whereby movement of the lever causes displacement of the cage causing the gears to mesh to assume a low speed, neutral and high speed configurations. | 03-20-2014 |
20140183429 | SINGLE RATCHET ACTUATOR WITH DUAL AIR DRIVERS - An air driven actuator ( | 07-03-2014 |
20140252287 | TRAILER JACK PLUNGER PIN RELEASE LEVER SYSTEM - A lever system for actuating a plunger pin on a trailer jack includes a lever, an attachment member for attaching the lever to the plunger pin and an engagement member which limits the movement of the lower end of the lever toward the trailer jack. | 09-11-2014 |
254420000 | Attached to trailer tongue | 12 |
20090057633 | Jack assembly - An improved jack assembly for use with a trailer tongue of a towed vehicle. The jack assembly including telescoping height adjustment of the assembly, a pivot assembly for pivoting between a vertical and horizontal stowed position, and a clip for maintaining a handle assembly in a stowed position when not in use. The jack assembly also includes the use of bushings for the telescoping tubes to enhance the sliding movement between the tubes and aid in maintaining the axial alignment of the tubes thereby extending the life of the jack assembly. The pivot assembly further includes an attachment bracket that may be rotated to accommodate at least two different sizes of trailer tongues. | 03-05-2009 |
20090159863 | RETRACTABLE JACK FOOT - A trailer hitch jack for rapidly raising and lowering the tongue of a trailer. | 06-25-2009 |
20090236578 | TRAILER SUPPORT POST WITH SPRING SCALE - A trailer jack including trailer securing hardware, a support post assembly and a wheel. The support post assembly includes jacking hardware and a spring scale. The trailer securing hardware secures a trailer so that it is supported by the support post assembly and the spring scale indicates the tongue weight of the trailer. The wheel allows the trailer to be moved around when it is hooked up to the jack. In one kind of design, the spring is located between the trailer securing hardware and the wheel. In another kind of design, the spring is located above the trailer securing hardware, distally from the wheel. | 09-24-2009 |
20100117038 | Foot-Operated Hydraulic Lift for Trailer - An hydraulically extensible frame is coupled to the hitch portion of a trailer by a pivoting mount. The pivoting mount permits the frame to pivot between a generally vertical operative position and a generally horizontal stowed position. A foot member is secured to an end of the frame opposite the pivoting mount. The foot member engages the ground. An actuator is carried by the frame in a location adapted to be engaged by a foot of a human user when the frame is in the operative or deployed position. The actuator pivots relative to the frame for storage and use as a handle. The actuator selectively extends the frame to raise the hitch portion in response to actuation by the foot of the user. | 05-13-2010 |
20100187489 | CONNECTOR ASSEMBLY FOR A TRAILER - A connector assembly for mounting on a connector arm of a trailer to facilitate easy alignment of the trailer connector arm with a hitch of a towing vehicle. The connector assembly can move the connector arm up and down, side-to-side and drive forward and reverse in relation to the towing vehicle. | 07-29-2010 |
20100213427 | ADJUSTABLE JACK MOUNT - A mounting adapter for mounting a jack to a trailer coupler and/or a trailer frame is described. The mounting adapter may permit the jack to mount to the trailer coupler while retaining both vertical and axial adjustability. The mounting adapter may include a flange and a collar. The flange may include an opening for receiving the jack and at least one mounting aperture for attachment with the trailer frame. The collar may extend outward from the flange and have at least one aperture for attachment with the jack. The collar may also include a rib located for engagement with a slot on the jack. The trailer coupler and frame may include apertures alignable to the mounting apertures, whereby the mounting apertures may permit orientation of the jack to be forward, left, right or rear facing. The mounting adapter may also be vertically adjustable to the jack. | 08-26-2010 |
20110073821 | Trailer Jack With Safety Features - A jack assembly including a jack body sub-assembly and a swivel plate. The jack assembly preferably includes the following indicators: (i) at least one jack extension indicator for indication the extension position of the jack; and/or (ii) a disengagement indicator for indicating disengagement of rotational constraints as between the jack body sub-assembly and the load to which the jack is secured (for example, the swivel plate on the tongue of a trailer). In a preferred embodiment, the fixed-engagement indicator takes the form of a marking on a pin that: (i) engages with a swivel plate to rotationally constrain the jack body with respect to the swivel plate; and (ii) disengages with the swivel plate to allow relative rotation of the jack body relative to the swivel plate. | 03-31-2011 |
20120326106 | TRAILER TONGUE LIFT JACK - Presented is a trailer tongue lift jack which tilts in order to allow the tongue and hitch to be aligned with a towing ball attached to a towing vehicle. The trailer lift jack includes a ball joint which allows the body of the hitch to tilt for this alignment step. The lift jack can also rotate to a storage position which is basically horizontal, and rotate to a lift position which is basically vertical for lifting the trailer tongue. | 12-27-2012 |
20130092890 | TWIN CAM MECHANISM FOR A DROP LEG JACK - A jack for use with a towed vehicle is disclosed. The jack may include a first housing, a pair of cam surfaces, and a second housing telescopically moveable relative to the first housing. The jack may also include a pair of engaging members positionable to a first position generally inhibiting relative telescopic movement between the first and second housings and a second position generally not inhibiting relative telescopic movement between the first and second housings, and a handle attached to the engaging members, where the handle is selectively positionable along the cam surfaces positioning the engaging members to the first and second positions. | 04-18-2013 |
20130341579 | JACK ASSEMBLY - An improved jack assembly for use with a trailer tongue of a towed vehicle. The jack assembly including telescoping height adjustment of the assembly, a pivot assembly for pivoting between a vertical and horizontal stowed position, and a clip for maintaining a handle assembly in a stowed position when not in use. The jack assembly also includes the use of bushings for the telescoping tubes to enhance the sliding movement between the tubes and aid in maintaining the axial alignment of the tubes thereby extending the life of the jack assembly. The pivot assembly further includes an attachment bracket that may be rotated to accommodate at least two different sizes of trailer tongues. | 12-26-2013 |
20140158960 | RETRACTABLE JACK FOOT - A trailer hitch jack for rapidly raising and lowering the tongue of a trailer. | 06-12-2014 |
20140367626 | JACK ASSEMBLY - A jack assembly is shown and describe. The jack assembly may include a first tube having first and second end portions and a central portion between the first and second end portions, and a second tube positioned within the first tube and movable with respect to the first tube. The jack assembly may also include an expanded portion on the first tube, the expanded portion having a larger inner diameter than an inner diameter of the central portion, and a bushing attached to the expanded portion, where the bushing generally prevents contact between the first and second tubes. | 12-18-2014 |
254422000 | Rocking lever | 1 |
20150041741 | TRAILER POWER LIFT SYSTEM - The modification of a trailer tongue jack includes welding a telescoping section of tubing to a swivel. The telescoping section provides the desired height adjustment for the design of many trailers. A clevis unit is welded to the bottom of an inner tubing member for cooperation with a foot plate. With the tubing adjusted to the correct lift height and angled to the front or rear of the trailer, the user places the foot plate firmly on the support surface. Moving the trailer toward the foot plate lifts it off the support surface. The deflated tire can now be replaced with the spare tire. To lower the trailer, the user pulls the locator pin and turns it to the locator pin groove located on the top of the tubing. The trailer can now be lowered to the support surface by moving it forward or backward. Now return the unit to the storage horizontal position and release the swivel locking pin. | 02-12-2015 |
254423000 | Hydraulic or pneumatic | 10 |
20100108966 | SYSTEMS AND METHODS FOR RAISING A SECTION OF A VEHICLE OFF THE GROUND WITHOUT A JACK - Described herein is a hydraulic suspension system mounted on a vehicle, including a plurality of hydraulic suspension units having a section of the vehicle corresponding thereto, and a hydraulic power means in communication with the plurality of hydraulic suspension units for providing a hydraulic fluid under pressure to actuate the plurality of hydraulic suspension units. The hydraulic suspension system mounted on a vehicle further includes a plurality of hydraulic valve assemblies associated with each of the plurality of hydraulic suspension units, wherein the plurality of hydraulic valve assemblies are in fluid communication between the plurality of hydraulic suspension units and the hydraulic power means, and a control means for controlling each of the hydraulic valve assemblies associated with each of the plurality of hydraulic suspension units. | 05-06-2010 |
20100155682 | Fast jack liftboat jacking system - An improved jacking system for a liftboat with a high speed manifold system with high speed motors and high speed planetary gear drives, a heavy lift manifold system with heavy lift motors and heavy lift planetary gear drives, and bypass valves for diverting hydraulic pressure between the high speed manifold system and the heavy lift manifold system. The improved jacking system makes the boat easier to position precisely and expands the weather and sea condition envelope the liftboat can operate in by reducing its exposure to multiple impact stresses while jacking up in rough sea conditions. The improved jacking system also serves as a safety device which can quickly “tag” the bottom to stop and stabilize the liftboat's motion in a close situation. | 06-24-2010 |
20100213428 | AUTOMOBILE JACKING SYSTEM - The present invention relates to an automated jacking system for lifting an automobile comprising: a plurality of mounted jacks, wherein each mounted jack includes an I-shaped assembly; a control means; and an activation means. Each mounted jack is firmly attached to each end of each axle of the automobile. The control means may include either a control panel within the interior of the automobile or a remote handheld control device. The activation means includes a motor on each mounted jack, wherein each mounted jack includes a base, a mounting bracket and a cylindrical body. The cylindrical body connects the mounting bracket to the base. A plurality of bolts firmly attaches each mounted jack to the respective axle. The mounted jacks according to the present invention may use either pneumatic or hydraulic means of power within the cylindrical body. | 08-26-2010 |
20100252790 | AUTOMATED RAIL JACK - The present invention relates to an automated jacking system for a motor vehicle that includes: a motorized jack; a rail system, where the rail system provides a means of movement for the motorized jack; and a control means, where the control means controls the movement of the motorized jack about the rail system. In one exemplary embodiment, the control means includes a control panel where the control panel includes at least four control buttons and each button coincides with a position of the motorized jack. During use, the rail system installs to the under carriage of a vehicle and includes a format that enables the motorized jack to position adjacent to a wheel of the vehicle. The present invention also includes a method of installing an automated jacking system to a motor vehicle. | 10-07-2010 |
20110215286 | JACK FOOT RETRACTION SYSTEM - A system for supporting a vehicle. The system may include a vehicle jack in mechanical communication with a jack foot and a striker plate. The jack foot is rotatable relative to the vehicle jack on a rotation axis disposed on the vehicle jack and perpendicular to a long axis of the vehicle jack. The jack foot includes a base at a distal end of the jack foot. The jack foot also includes a cam surface at least in part at a proximal end of the jack foot. The cam surface is aligned with the striker plate and interacts with the striker plate to rotate the jack foot in response to movement of the vehicle jack from a lowered position to a raised position. | 09-08-2011 |
20120313061 | VEHICLE LIFTING SYSTEM - A vehicle lifting system comprising a mechanism fixedly disposed within a center pillar at the side of a vehicle, for extending out of the pillar and exerting a downward force onto the surface on which the vehicle is positioned. When the force is exerted on the surface, the side of the vehicle is lifted above the surface. A control device is utilized for selectively extending the mechanism out of the pillar and retracting the mechanism back into the pillar. | 12-13-2012 |
20140217342 | VEHICLE WITH INTEGRAL TIRE JACKS - The vehicle with integral tire jacks is an automatic built-in system for lifting a vehicle in the event of a flat tire when the tire requires replacement. The system includes four jacks installed under the vehicle near each wheel. An air compressor activated and controlled by an internal control panel will provide pressure to the jacks, the control panel being provided with knobs and buttons enabling the control of a desired jack. | 08-07-2014 |
20140231732 | HYDRAULIC JACK FOR VEHICLE - A system for jacking a motor vehicle comprising: a telescoping hydraulic jack positioned near on at least one wheel of the motor vehicle, where said telescoping hydraulic jack includes a base and a plurality of sections connected to the base; and a means to supply hydraulic fluid to each telescoping hydraulic jack. The plurality of sections may include a first section connected to the base, a second section connected to the first section and a third section connected to the second section where the third section attaches to a frame of the motor vehicle. In one particular embodiment, the telescoping hydraulic jack is mounted near each wheel of the motor vehicle. | 08-21-2014 |
20140246636 | VEHICLE LEVELING SYSTEM AND METHOD - A system and method are disclosed for leveling a vehicle when stationary. The system includes three zones with a first zone at the front end, and the second and third zones on opposite sides of the vehicle. All zones include leveling jacks, each having a blind side and a rod side. At least one leveling jack is located in the first zone, and at least two leveling jacks are located in each of the second and third zones. The blind sides of the jacks in each zone are connected together. The rod sides of all of the jacks are connected to a common fluid line, which typically is at low fluid pressure or pressure-free. The method involves extending all of the jacks from retracted positions to extended positions until they meet the surface upon which the vehicle is located. Fluid is then applied to the blind sides of either the second or third zone leveling jacks to raise the lower of the two sides. If the front end is lower than the rear end, fluid is applied to the blind side of the leveling jack in the first zone. If the front end is higher than the rear, fluid is relived form the blind side of the leveling jack. | 09-04-2014 |
20160009256 | VEHICLE WITH INTEGRAL TIRE JACKS | 01-14-2016 |
254424000 | Screw actuated | 10 |
20080197332 | Support Jack - A support jack for supporting semitrailers including a vertically telescopically displaceable supporting device having an outer sleeve and an inner sleeve. A spindle nut has first means and second means for being positively detachably connected to the sleeves. The first means interact with means of the inner sleeve for fixing the spindle nut in the direction of the longitudinal axis of the support jack. The second means interact with means of the outer sleeve for fixing the spindle nut in the direction of rotation about the longitudinal axis. A method of assembling a support jack is also described, in which the spindle nut is connected detachably to the inner sleeve by means of at least one translatory and one rotary joining movement or at least by means of two translatory joining movements. | 08-21-2008 |
20090057634 | RV stabilizer system - A stabilizer mechanism and stabilizer system for securement to the underside of fifth-wheel trailers, trailers or the like. The important feature of this invention is a stabilizer mechanism where the upper mounting bracket and lower foot bracket are off center. The stabilizer by itself would lean to one direction. The stabilizer is to be used in pairs with each placed as to lean in the direction of the other. The heavier the load the more stabilizing effect is applied. | 03-05-2009 |
20090272952 | Support jack with supporting load indicator - A support jack with a vertically telescopically displaceable supporting element having an outer sleeve and an inner sleeve is described. For the operator, it is sometimes hard to discern whether the support jacks find an adequate abutment on the ground. In an extreme case, the support jack sinks into the ground under the load of the vehicle. The vehicle is then no longer adequately supported and can tip over. For this reason, the object of the invention is to develop a support jack in such a way that secure standing is already discernible for the operator during extension of the supporting element. According to the invention, the object is achieved with a support jack in which a supporting load indicator with a pressure element is arranged on the supporting element, the pressure element triggering a signal when a predefinable supporting force is reached. | 11-05-2009 |
20110193038 | QUICK RELEASE COUPLING FOR CONNECTING STABILIZER JACKS TO A VEHICLE - The invention relates to stabilizers for use with a vehicle. The quick release coupling system entails a pair of grooved plates that can easily attach and detach with respect to one another. The top plate of the coupling system is mechanically attached to the frame of the vehicle and a bottom plate is mechanically attached to a conventional stabilizer. These grooved plates create a quick release coupling joint that facilitates attachment and removal of the stabilizers from the vehicle. | 08-11-2011 |
20140117297 | STABILIZER JACK - A stabilizer jack for stabilizing a recreational vehicle includes a channel having longitudinally extending side flanges and an end defining an aperture. A trunnion including a threaded bore is at least partially disposed within the channel for movement along the side flanges. A drive screw extends through the end aperture and engages the threaded bore of the trunnion. A support leg including a foot pad is rotatably connected to the trunnion. A link is hingedly connected to the support leg and the channel. | 05-01-2014 |
20140158961 | Locking Mechanism - A locking mechanism for use on a support winch includes a stator unit, a rotor unit and a locking unit, wherein the rotor unit has a shaft element and a crank element, wherein the crank element is pivotably arranged in relation to the shaft element, wherein the shaft element is rotatably mounted about a rotation axis, and secured to prevent displacement transverse to the rotation axis relative to the stator unit, wherein the locking unit secures the crank element in a first axial position when the crank element is in an idle position to prevent displacement along the rotation axis in at least one direction, and wherein the locking unit secures the crank element to prevent swiveling movement relative to the shaft element when the crank element is in an operating position. | 06-12-2014 |
254425000 | Gear driven | 4 |
20100001244 | LIFTING DEVICE - The invention relates to a lifting device ( | 01-07-2010 |
20100176359 | Vehicle Jack With Extension Feedback - A screw jack for lifting a vehicle that includes an outer sleeve section and a threaded section that rotates relative to the outer sleeve section. The screw jack also includes a drive assembly with a rotary position sensor. The drive assembly is in driving engagement with the threaded section. The screw jack also includes an extending section that translates relative to the outer sleeve section and the threaded section and is driven by the threaded section. Extension of the extending section is continuously monitored using the signal from the rotary position transducer when the jack is in operation. | 07-15-2010 |
20140203228 | IN-LINE JACK - An in-line jack includes a body, an extendable shaft, drive mechanics, and a motor. The body has first and second distal ends. The extendable shaft is movably disposed within the body and has a distal end extending out of the second distal end of the body. The drive mechanics are disposed within the body and are adapted to move the extendable shaft with respect to the body. The motor is mounted at the first distal end of the body and is adapted to selectively drive the drive mechanics. A coupling mechanism can be provided to selectively alternately couple: (i) a planetary gear system associated with the motor to a drive shaft of a jack screw assembly and (ii) a manual crankshaft to the drive shaft to operate the jack manually. The body and the motor each has a generally cylindrical outer surface with an outer diameter equal to or less than about three inches. The body, the jack screw assembly, the coupling mechanism, the planetary gear system, and the motor are substantially axially aligned with each other. | 07-24-2014 |
20140246637 | DUAL WIND JACK - An improved jack assembly includes multiple handle attachment positions. The jack assembly includes an outer tube and an inner tube moveable with respect to the outer tube. The outer tube includes a first handle attachment position to engage inner gearing and a second handle attachment position to engage inner gearing. A handle may be removably connected to the first attachment position or second attachment position. The outer tube may be connected to a mounting fixture and adjustable with respect to the mounting fixture. | 09-04-2014 |