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Fire escape, ladder, or scaffold

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Class / Patent application numberDescriptionNumber of patent applications / Date published
182003000 TORSO HARNESS 240
182129000 COMBINED 98
182107000 SAFETY DEVICE FOR GROUND-SUPPORTED LADDER 69
182112000 SAFETY DEVICE, PLATFORM ASSOCIATED 68
182194000 LADDER 50
182141000 PLATFORM WITH ELEVATING OR LOWERING MEANS 47
182082000 WALL- OR FLOOR-ATTACHED 42
182115000 LADDER AND PLATFORM 32
182630100 HAVING TRANSPOSITIONING BASE AND ERECTING MEANS 30
182222000 PLATFORM 29
182152000 UNITARY FOLDABLE, RIGID SCAFFOLD OR LADDER 27
182106000 WITH HANDRAIL OR GUARD FOR LADDER 23
182018000 WITH INDICATOR, SIGNAL OR ALARM 21
182036000 TRAVERSING, TRACK-MOUNTED 21
182179100 SELF-SUSTAINING 20
182187000 SCAFFOLD EXTERNAL OF SHAFT 20
182127000 LADDER WITH LAND VEHICLE 17
182020000 CONVERTIBLE 17
182133000 POLE OR STRAND GRASPING-TYPE CLIMBER 15
182012000 HORIZONTAL TRAVERSING - ACTUATION, CONTROL, OR RESPONSE 13
182045000 PITCHED ROOF CONFORMING SCAFFOLD 12
182048000 CHUTE OR ESCAPE TOWER FOR PERSONNEL 12
182200100 MEANS MAINTAINING PLATFORM LEVEL ON ANGULARLY MOVABLE SUPPORT 10
182189000 SINGLE STILE, STRAND OR POLE 10
182150000 SUSPENDED PLATFORM 10
182165000 LADDER WITH PIVOTED PROP 9
182070000 WITH STORAGE DEVICE FOR SUPPLE ESCAPE 8
182019000 AUTOMATIC CONTROL 7
182230000 MISCELLANEOUS 6
182137000 BODY CATCHER 6
182128000 SCAFFOLD SUPPORTED INTERNALLY ON SHAFT 5
20090236180Manhole construction safety and work platform device - The invention is a manhole construction safety and work platform device having a scaffold catwalk for working on a manhole, providing the safety and work platform with adjustable braces engaging the side of a conical manhole casing. The inner perimeter of the device circumferentially defines a central access opening in order to slidably accept, receive, and fit around the conical section of the manhole casing, as typically used in the utility construction industry. The scaffold catwalk has a safety barrier means on the working surface to provide a safe working environment along the outer perimeter. As is common in the industry, the conical section of the manhole casing may be an asymmetrical conical section. One objective of the present invention is to provide a scaffolding platform supported with at least three adjustable brace members to securely support the said platform against the sidewall of any shape of manhole casing.09-24-2009
20100000822SCAFFOLDING SYSTEM - A scaffolding system comprising a plurality of elongate structural tubes and a plurality of node members. Each node member has three or more mating portions that each extend along one of three mutually perpendicular axes that pass through the respective node member. End portions of the structural tubes can be releasably secured to the mating portions to provide a framework of vertical columns that extend between pairs of node members and horizontal beams that extend between pairs of node members. The scaffolding system further comprises a plurality of tie members that can each be releasably secured at opposing ends to a node member such that the respective tie member is inclined relative to the vertical columns or the horizontal beams, such that the scaffolding system, when assembled, is capable of supporting structural loads.01-07-2010
20090173577WORKING PLATFORM - The invention concerns a working platform assembly for use in the interior of a tower-like building. The object of the present invention is to provide a working platform assembly which can be used in the interior of a tower-like building even if the tower is closed at the top by an upper structure thereon. According to the invention that object is attained by a scissor lattice-like carrier structure and a working platform arranged on the carrier structure. In that respect the invention is based on the that the working platform assembly according to the invention can be adapted to different inside diameters of the tower-like building by virtue of the scissor lattice-like carrier structure and can thus extend completely across the tower cross-section. That makes it possible to work on the platform assembly. The working platform assembly can be released from the tower wall by the scissor lattice-like carrier structure and fixed again in another region of the building of a different cross-section.07-09-2009
20120037452VERTICAL ENCLOSURE SAFETY APPARATUS - A safety apparatus adapted for retrofitting vertical enclosures is shown. The safety apparatus may include a support frame, a grate platform, and telescoping support legs adapted to fasten to an enclosure wall. The apparatus may also include a hinged hatch defining an opening configured to allow a person to be pulled through the platform.02-16-2012
20100288583Founding system - A founding chair for a founding ladder system is of a lightweight fabricated design and includes a pivotally secured top leveling plate. A ladder system for the founding chair includes a slide in engagement rack for securing of the founding chair and allowing incremental adjustment.11-18-2010
182178100 STACKABLE 4
20090236181STACKABLE SCAFFOLDING FRAMES - A scaffolding frame comprises a pair of spaced apart elongated vertical members having respective top and bottom ends thereof and at least one elongated horizontal member mounted at each longitudinal end thereof to a respective one of the vertical members. Each vertical member defines a respective opposite lateral side of the frame. The horizontal member comprises a depressed portion near each longitudinal end thereof. When a first such frame is stacked onto a second such frame, one depressed portion and one vertical member of the first frame respectively engage one vertical member and one depressed portion of the second frame.09-24-2009
20120228060HIGH CAPACITY VERTICAL MEMBER FOR USE WITH MODULAR SCAFFOLDING - A vertical member of a modular scaffolding system includes a securing rosette provided in an upper section having a reduced diameter to provide a pre-determined modular connection. The vertical member includes an elongate intermediate section forming the majority of the vertical member of a first diameter greater than the reduced diameter. The intermediate section at a lower edge includes an integral spigot of the reduced diameter. A reinforcing sleeve is fixedly secured to the upper section above the rosette and forms a spigot receiving socket. The vertical member has higher capacity due to the larger diameter intermediate section while maintaining modularity of the scaffolding system.09-13-2012
20100025154MODULAR LADDER - A modular ladder system is provided, wherein segments may be joined without limit to form a ladder of any desired length.02-04-2010
20090301815Modular scaffold system - A modified scaffold support post includes areas of reduced diameter, intermediate the length of the support post, having connecting rosettes secured to these reduced diameter areas. Preferably the areas of reduced diameter correspond to diameter of support tubes used as uprights in scaffold frames in North America (approximately 1.69 inches in outer diameter). Preferably the areas of reduced diameter are formed by swaging a tube of a larger diameter, typically approximately 1.90 inches. The modified support post is advantageously used with scaffold frames with connecting rosettes appropriately positioned on the uprights of the scaffold frames.12-10-2009
182224000 SCAFFOLD HORSE BEAM OR LEG 4
20090288914SAWHORSE - A sawhorse includes a pair of identical support members and a connector structure. Each support member includes a pair of spaced apart legs, and an upper work surface for supporting a work-piece. The upper work surface is integrally formed with the legs. Each support member includes an integrally formed hinge portion directly connectable with the hinge portion of the other support member. The connector structure is arranged to connect an intermediate portion of the support members to one another.11-26-2009
20090026013Adjustable and transportable scaffolding - An adjustable and transportable scaffolding (01-29-2009
20080283336Fittings for Builders' Trestles - A bracket (11-20-2008
20110233000PORTABLE SAWHORSE WORKSTATION - An improved sawhorse having an elongated body with a channel formed in an upper working surface thereof. The sawhorse also includes a ledger that is sized and shaped to be seated within the channel and a clamp that is operable to secure the ledger to the elongated body. The elongated body further includes a plurality of receptacles that are adapted to receive a corresponding plurality of support legs.09-29-2011
182620500 WITH EXTENSIBLE VERTICAL AND NONVERTICAL SECTIONS 3
20090090581STAIR SYSTEM FOR OILFIELD TANK - A stair system for a mobile storage tank includes a platform subsystem attached to a wall of the mobile storage tank, a staircase subsystem coupled to the platform subsystem, and a rail subsystem attached to the staircase subsystem. The platform subsystem includes a retractable platform extension, and the staircase and rail subsystem are configured to be extended for use and retracted for transit and non-use modes of operation.04-09-2009
20110073409SUPPORT PLATFORM FOR WORKERS DEALING WITH MAINTENANCE AND CONSTRUCTION OF MEANS OF TRANSPORT - A support platform (03-31-2011
20120080265FALL PROTECTION FOR PERSONNEL SERVICING AN ELEVATED WORK AREA FROM A MAN LIFT - Fall protection for personnel servicing an elevated work area from a man lift. A bridge is pivotally mounted to a working edge of the man lift. The bridge pivots between a stored position and a substantially horizontal operative position. The bridge has a pivotally mounted edge, a remote edge opposite to the pivotally mounted edge and opposed sides. An expandable enclosure is anchored to the man lift. The enclosure is movable between a collapsed position and an expanded position. In the collapsed position, the enclosure is collapsed parallel to and provides fall protection along the working edge of the man lift. In the expanded position, the enclosure provides fall protection for the opposed sides of the bridge in the operative position and provides fall protection in the work area by enclosing a portion of the work area beyond the remote edge of the bridge.04-05-2012
182077000 DOOR AND LADDER 3
20090255757FOLDING ATTIC STAIR ASSEMBLY - A folding attic stair assembly comprises a rectangular outer mounting frame. An inner stairway carrying frame is mounted by a hinge at one end of the outer mounting frame for movement between a raised stored position on the outer mounting frame and a lowered position extending downwardly from the mounting frame. An extendable attic stair is mounted on the inner frame. A pair of folding support arms extend between the outer mounting frame and the inner stairway carrying frame. A cable connects between each folding support arm and an associated reel mounted on a drive shaft which is connected to a drive motor. This drive motor is operable to wind and unwind the cables on the reels to raise and lower the attic stair in a controlled manner.10-15-2009
20120193167TELESCOPING PULL-DOWN ATTIC LADDER - An attic ladder system includes an upper portion that can be extended above the attic floor and a lower portion that can be extended into a room below the attic. The upper portion can extend automatically into the attic upon extension of the lower portion, or may be operated independently of the lower section. Ladder extension can be telescopic or by unfolding of sections. Retraction of either or both ladder portions may include a pivoting capability to reduce vertical height when stored. A gap can be provided between lowest the rungs to avoid danger to a user's hands. Embodiments can be used to access the top of a vehicle roof from within the vehicle. Embodiments can support a user weighing up to 300 pounds. A gas spring can assist in lifting and stowing the lower portion. Pivot latches can secure the ladder in its stowed and deployed configurations.08-02-2012
20100089695ATTIC LADDER STRUT ATTACHMENT - A folding ladder assembly having a door, a frame, and a strut connecting the door and frame. The strut comprises a first end and a second end opposite the first end. The first end of the strut is attached to the door via a strut stop bracket. The other end of the strut is attached to a stationary mounting plate, which is attached to the ladder opening frame. The strut is attached to the strut bracket via a strut standoff using an E-clip retaining ring. Optionally, the strut standoffs are riveted to the strut stop bracket and the stationary mounting plate. The strut stop bracket is optionally formed having a double bend to form two substantially parallel portions connected by a third non-parallel portion.04-15-2010
182010000 INCLINED CABLE SUPPORTING CARRIER TRAVELING THEREALONG 2
20130048423SUPPORTED DAVIT ARM EXTENSION ASSEMBLY FOR CABLE SUSPENDED DESCENT APPARATUS - A supported davit arm extension assembly for a descent apparatus comprising an escape shuttle suspended from a cable defining a descent path from an initial point at a receiver of a platform to a terminal point proximate to a ground surface. The extension assembly comprises a davit arm extending above the platform and secured to the receiver, and a fall arrest trolley operatively coupled to the shuttle at a first end and terminating at a second end extending substantially away from the terminal point. The second end of the fall arrest trolley has a securement point for connection to and support of a load, such as a worker, by an overhead fall arrest. While the shuttle is docked with the receiver, the fall arrest trolley extends over the platform, supported by the davit arm, and facilitates substantially unfettered movement of the worker around the platform. As the worker enters the shuttle, it is disengaged from the receiver and follows the descent path of the cable toward the ground surface. The second end of the fall arrest trolley rides along the davit arm and onto the cable and is thereafter supported thereon through the descent of the shuttle.02-28-2013
20120318609MOVABLE CABLE LOOP DESCENT SYSTEM - A movable cable loop descent system comprises a cable for forming into a loop, a receiver for attachment to a structure having a receiver pulley for engaging the cable loop, a brake assembly, having a drive pulley for being rotated by the cable loop, the brake assembly for slowing a rate of travel of the cable loop and a carriage supporting a load for attachment to the cable loop at a point and for movement between the structure and the ground. A rotor and substantially parallel conductive frame is mounted on an axle through the drive pulley. Magnets on a surface of the rotor and/or the frame induce eddy currents, as they are relatively rotated, which create a rotational braking force controlling descent of the carriage and load. The brake assembly may be removably positioned by a drive-on anchor. The cable is removable and the system may form a kit.12-20-2012
182101000 LADDER WITH VERTICALLY MOVING PLATFORM OR ESCAPE 2
20130068559Cargo Lifting Device For A Ladder - A cargo lifting apparatus for use with a ladder includes a lift track coupled to each ladder side rail. Each lift track includes first and second adjacent channels, the first channel defining a longitudinal slot. The apparatus includes a carrier assembly having a back portion, a pair of support members extending perpendicularly and forwardly from the back portion, opposed mounting members configured to be received in a respective first channel slot, and rollers attached to the back portion configured to bear against respective ladder side rails. A motor/brake combination is coupled to a lower rung of the ladder. A pulley assembly includes a lower sprocket operatively coupled to the motor, an upper sprocket, and a cord extending between the sprockets and coupled to the carrier assembly for selectively raising and lowering the carrier assembly when the motor is activated or deactivated.03-21-2013
20090152045MOBILE MOUNT FOR ATTACHMENT OF A FALL ARREST SYSTEM - A mobile mount for attachment of a fall arrest system. The mobile mount includes a mobile base, a support, at least one base, at least one arm and at least one anchor. The mobile base has a first side and a second side. The support extends upward from proximate the first side of the mobile base. The support also has a first end coupled to the mobile base and a second end. The at least one brace is coupled between the support and the mobile base to maintain the support in an upward position in relation to the mobile base. The at least one brace is slideably coupled to the mobile base. The at least one arm assembly is coupled to the second end of the support and extends from the support so as to be cantilevered over the mobile base. The at least one anchor is configured to be attached to the fall arrest system. Moreover, the at least one anchor is coupled to the at least one arm assembly.06-18-2009
182130000 PLURAL PLATFORMS, COMMON SUPPORT 2
20110284326METHOD AND APPARATUS FOR USE IN LINING A CURVED WALL - Apparatus for use in lining a curved wall comprising staging (11-24-2011
20090152048 Scaffolding Arrangement and Method of Assembly - A scaffolding assembly including at least one scaffolding climbing tower defined by four corner standards, two or more working platforms, and one or more intermediate platforms between at least one pair of working platforms.06-18-2009
182151000 KIT OR SEPARABLE PARTS 2
20120234629Support Platform - The invention is a support platform for providing a stable and secure work surface when the existing surface is irregular, such as open ground, or when the existing surface is inconvenient, such as a staircase. The support platform is configured to be transported by a single person, deployed for use, and taken down and stowed as needed. The support platform can be used for directly supporting a person, or can be used for supporting a tool, such as a ladder in a manner that provides secure and slip-resistant support. In some cases, the platform is larger and/or heavier and is transportable by multiple persons or with assistance selected from the group consisting of mechanical assistance, power assistance, and automation.09-20-2012
20120186910Horizontal Scaffold Member - One embodiment of the invention is a horizontal scaffold member having a primary end connector and a secondary end connector. Each end connector is configured to couple to a cup on a vertical scaffold member. Each end connector includes a wedge assembly having a handle and a wedge, movable with respect to the wedge head to a latched and unlatched position. The primary wedge assembly is connected to the secondary wedge assembly by a cable, and configured so that moving the primary wedge assembly to a unlatched position also moves the secondary wedge assembly to an unlatched position.07-26-2012
182104000 PIVOTALLY CONNECTED LADDERS, MUTUALLY SUSTAINING 2
20090000867Plastic ladder - A ladder made by plastic material includes a first ladder unit which includes two side rails with a plurality of rungs integrally connected between the two side rails. A head step is integrally connected to two respective top ends of the two side rails. The first ladder unit includes an open first side and a closed second side. Each of the rungs includes a latitude rib and altitude ribs connected to an inner periphery of the open first side so as to define a plurality of chambers in the open first side of each rung, and each side rail includes two sidewalls and a plurality of latitude ribs connected between the two sidewalls so as to define chambers separated by the latitude ribs. Each rung has an anti-slip top surface. A second ladder unit can be pivotably connected to the first ladder unit at two respective head steps.01-01-2009
20130186710ELEVATED WORKING PLATFORM AND RELATED METHODS - Elevated work platforms, as well as associated methods, are provided. In one particular embodiment, an elevated platform apparatus is provided comprising a first rail assembly having a pair of rails coupled with a plurality of rungs, a second rail assembly hingedly coupled with the first rail assembly, a platform configured to rest upon a portion of the first rail assembly and the second rails assembly and a cage associated with the platform. The cage may include at least one bar and at least one gate, the at least one gate being configured to swing in a first direction upon a user stepping on to the platform from the first rail assembly, and then swing back to a closed position after the user is standing on the platform. The at least one gate is also limited from being displaced in a second direction, opposite the first direction, beyond the closed position.07-25-2013
182228100 RUNG OR RUNG-TO-STILE CONNECTION 2
20090050408ICE LADDER - An ice ladder has a climbing ladder mounted to an adjustable frame, with the adjustable frame including a securing apparatus mounting on a desired surface, especially an opening in an ice covered body of water. The ice ladder has an adjustable frame or member, a locking bar, and a climbing ladder releasably secured to the locking bar. The adjustable member is secured to the locking bar.02-26-2009
20120325585Reflective Friction-Enhancement For Surfaces - A modular safety unit for application to surfaces requiring reflectivity and friction. The unit has a front surface with a high-reflectivity portion and a roughening agent. The high reflectivity portion and roughening agent can be connate or separate. The unit also has a back surface which may be applied to a platform surface such as a rail car step, ladder rung or walkway. The back surface of the unit comprises an adhesive, or may itself be adhered to a surface.12-27-2012
182241000 MOVABLE STRAND ESCAPE AND MEANS FOR RETARDING TRAVEL OF STRAND 2
20090014242Wirelessly controlled fire escape devices - Disclosed is a fire escape device which can be controlled wirelessly. The device comprises a rope winding unit having a rope, a carrying unit fixed to one end of the rope, a main control unit fixed onto a building, through which the rope is connected to the man-carrying unit so as to control a descent process of the carrying unit, and at least one wireless remote control capable of communicating with the main control unit and operating the same.01-15-2009
20130206510Brake Assembly for Use with a Retractable Lifeline Assembly - A brake assembly for use with a retractable lifeline assembly comprises a brake hub, a pressure plate, a first friction disk, a brake plate, a second friction disk, and a lock nut. The brake hub includes a flange extending outward from an at least partially threaded shaft. The pressure plate is positioned on the at least partially threaded shaft proximate the flange. The first friction disk is positioned on the at least partially threaded shaft proximate the pressure plate. The brake plate is positioned on the at least partially threaded shaft proximate the first friction disk. The second friction disk is positioned on the at least partially threaded shaft proximate the brake plate. The lock nut is threaded onto the at least partially threaded shaft, and the lock nut is set to a desired torque at which the brake plate slips prior to final assembly of the retractable lifeline assembly.08-15-2013
182046000 WITH INSULATION 2
20130048425DIELECTRIC COATING AND APPLICATION PROCESS - A method of electrically insulating one or more components of a boom assembly involves applying a seamless coating of dielectric material to an outer surface of each of one or more boom assembly components, the boom assembly components being constructed of metal or other electrically conductive material. The dielectric material is applied as a liquid and, when hardened, creates a seamless, electrically insulating barrier on the boom assembly components to which it is applied. A layer of ultraviolet radiation protective material may be applied on top of the layer of dielectric material to protect the dielectric material from ultraviolet degradation. The boom assembly components may be painted or otherwise treated prior to the application of the dielectric material.02-28-2013
20090014239Archery bow having improved design to absorb shock and reduce vibration - The present invention generally relates to an improved archery bow having a greatly enhanced ability to absorb shock, vibration and sound. In order to achieve improved sound and vibration dampening, the bow riser, and optionally the bow limbs are coated with an energy absorbing and/or dampening coating. The coating is permanently attached to the riser and/or the limbs of the bow and greatly reduces undesired vibrations and/or noise generated by and during the archery bows use, without interfering with the performance of the bow. The invention also relates to treestands and archery accessories having a low noise profile.01-15-2009
182042000 ENDLESS CONVEYER ESCAPE 1
20110000742Device for Evacuating People from a Building01-06-2011
182051000 WITH FLUID HANDLING 1
20090045011SELF-POWERED LIFT APPARATUS - A self-powered lift apparatus includes a support base, a hitch member, a mast, a movable lift boom, and a power unit. Optionally, the lift apparatus may also include at least one movable stabilizer or support leg. The hitch member is coupled to the support base and is adapted to be received by a hitch receiver on a vehicle. The hitch receiver on the vehicle may provide any one of a hitch socket, a three-point hitch, or a universal mount on a skid-steer vehicle. The lift apparatus is powerable solely by the power unit mounted at the lift apparatus and is operable to move the movable lift boom to lift a person or another implement, without reliance on any power supplied from the vehicle. Optionally, the lift apparatus is at least partially supported in a cargo bed of the vehicle.02-19-2009
182053000 DETACHABLE WINDOW SEAT TYPE 1
20110056765Window Platform And Method For Using Same - A method and apparatus for securing a platform to a window ledge is provided. The apparatus comprises a frame. The frame has a first support rail, a second support rail and a plurality of support members. Each of the support members have a top and a bottom end and wherein the at least one support rail is fixedly attached to the top ends of each of the plurality of support members. The bottom ends of each of the plurality of support members are fixedly attached to the second support rail. The apparatus has a platform fixedly attached to the second support rail. The apparatus has at least one hanging member having a top and a bottom end, wherein the bottom end is fixedly attached to the at least one support rail and the top end is adapted to be secure secured to a window ledge.03-10-2011
182001000 MEANS MAINTAINING STEP LEVER ON HORIZONTALLY PIVOTED LADDER 1
20090020360LANDING LADDER - The present invention involves a selectively collapsible ladder which permits for adjusting the pitch of the steps between at least two pitches, one pitch being where the ladder collapsed for storage and another pitch whereby the steps are positioned for use by a user. The ladder includes a support structure comprising one or more support rails for extending between the ground and a loading or work surface or storage compartment. The steps are connected together by one or more links for effecting simultaneous movement of the steps. A stop mechanism is provided to releasably fix the step pitch relative to a support rail. The stop mechanism may include a ratchet mechanism that permits setting the pitch of the steps at one of several available pitch settings.01-22-2009

Patent applications in all subclasses Fire escape, ladder, or scaffold