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Match Document Document Title
8763757 Ladder climbing apparatus  
A ladder climbing apparatus is provided for use with a ladder having a plurality of rungs. The ladder climbing apparatus includes a frame, a prime mover mounted to the frame and a power supply...
8689937 Cargo 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...
8596416 Tool carrier  
A system configured for lifting or lowering a tool carriage device via a ladder climbing structure is described. The tool carriage device may be adapted to enclose and transport a payload and...
8322489 Aerial rescue device  
An aerial rescue device is a powered platform that quickly elevates the fireman to height, or powers the secure descent of a rescued person. A powered carriage rides between two extensible booms....
8074769 Ladder accessory  
A device is provided for aiding a user in transporting a load up and down a ladder assembly. The ladder assembly includes a fly ladder having slidably connected to a base ladder. Each ladder...
8002512 Material transport  
A material transport system and method of use is disclosed herein. The system includes a base assembly having an adjustable width, a material support platform hingedly attached to the base...
7942243 Intermediate cable fairlead  
An intermediate cable fairlead is comprised of a frame assembly, a left and right wheel assembly affixed to the frame assembly, and a pulley wheel attached to the wheel assembly. The intermediate...
7909139 Powered lift platform  
The present invention is a powered lift platform including a platform, at least one guide rail section in operative contact with the platform, each of the at least one guide rail sections...
7900745 Motor driven lifting assembly  
A motor driven lifting assembly includes a ladder, a plurality of fastening members removably and pivotally attached to an upper end of the ladder, and a plurality of wheels attached to a lower...
7686566 Method of using a lifting hoist  
A hoisting device and method for hoisting material up an extension ladder. The device includes a load-carrying carriage having a wheel and roller axle assembly that also serves as rollers for...
7546902 Personnel lift apparatus  
Accordingly, embodiments of the inventive disclosures made herein comprise a personnel lift apparatus for raising or lowering a standing person between two or more elevations or from a base...
7424932 Lifting hoist assembly  
A hoisting device and method for hoisting material up an extension ladder. The device includes a load-carrying carriage having a wheel and roller axle assembly that also serves as rollers for...
7004288 Lift apparatus  
The invention provides a lift apparatus for use with a ladder having two spaced upright stringers and a plurality of horizontal rungs bridging the stringers and spaced at a distance vertically...
6533070 Roof buddy  
Raisable and lowerable platforms for use with ladders that are laid against exterior and interior walls, and against other inclined surfaces such as pitched roof surfaces. Two or more ladders can...
6422341 Lift-up rail extensions  
A lift up rail extension assembly is to be mounted onto an existing ladder which has a first rail and an opposite second rail. The first and second rails are connected by at least one step. The...
6357549 Guide rail climbing lifting platform and method  
A guide rail system is used to erect towers, to place equipment on towers and for maintenance of towers. The guide rail may be added to existing towers, a climbing lifting platform is attached to...
6244381 Ladder hoist device  
A ladder hoist device for hoisting material up an extension ladder. The ladder hoist device includes a device that is able to move materials up and down an extension ladder. The device has a back...
6216818 Mobile ladder including a goods lift  
A mobile ladder (10) including a goods lift (12) which can be driven between upper (FIG. 3) and lower (FIG. 4) positions. The ladder has a default-immobile state which can be overcome by a force...
6179087 Ladder  
A default-immobile ladder (10) includes mobility means (12) displaceable between a ladder immobile position and a ladder mobile position in which the mobility means extends downwardly beyond the...
6095284 Elevatable stands for physically challenged hunters  
An elevatable stand construction 10 for physically challenged hunters which includes a ladder style main framework member 20 supported in an upwardly angled disposition, a chair style platform...
5911287 Lifting device for use with a ladder  
A lifting device for raising a load intended for support by a roof of a building utilizing a ladder. Device includes a sled having first portion for slidingly contacting the ladder and a second...
5337857 Ladder adaptable platform  
The present invention comprises a platform for an aluminum extension ladder which platform is adjustable upwardly and downwardly, and is pivotable between a pair of side frames, to permit a user's...
5275256 Ladder carriage apparatus  
An apparatus having first and second floor plates defining a floor opening to receive a ladder therethrough is provided, with the floor plates having first and second side plates mounted to...
5145031 Electric ladder  
An adjustable ladder comprising, a pair of side supports, a device for retaining the supports in a spaced relationship, a rung, a device for slidably mounting the rungs in the supports, and a...
5143181 Platform lift apparatus  
An apparatus wherein a base plate mounts a plurality of base plate tubes, each mounting stabilizer legs, wherein the stabilizer legs are provided to include leveling screws to provide leveling of...
4972922 Adjustable scaffolding assembly  
The present invention relates to an improved adjustable scaffolding assembly and is seen to include an adjustable scaffolding supporting device, a roller assembly, and a peak stabilizer bar...
4930599 Ladder and carriage combination  
A combination ladder and carriage carried by the ladder for up and down movement to carry loads up the ladder at construction sites including building, repairs and the like at elevated heights....
4800988 Adjustable platform for a rung ladder  
An adjustable platform for a rung ladder has a footplate which provides sufficient surface area to enable full contact by the users feet. A footplate support system enables the footplate to...
4772175 Space station erectable manipulator placement system  
An erectable manipulator placement system for use on a space station and comprising an elongate lattice-like boom having dual guide tracks attached to parallel chords thereof, a carriage-like...
4706779 Transportable, twin telescopic arm platform hoist  
The present invention is a transportable hoist consisting of a twin-arm telescopic unit comprising a given number of rectangular telescopic elements, which can be extended longitudinally by means...
4550806 Elevating apparatus  
An elevating apparatus comprises an inclined elevator and a load-carrying carriage. The inclined elevator comprises a pair of guide rails, and the carriage is movable along the guide rails by...
4546853 Portable folding platform apparatus used with a ladder and winch  
A portable folding platform apparatus is disclosed which may be removably mounted on an extension ladder having a winch removably mounted at the top of the ladder. The apparatus may be used to...
4546854 Load-carrying platform  
The invention relates to a load-carrying platform, particularly for moving furniture or the like along an inclined elevator. The load-carrying platform is supported by a carriage which is movable...
4467889 Ladder-guided service elevator  
A service elevator, designed to carry persons up or down along a building wall or other structure, comprises a ladder secured to that structure and a carriage on which an endless conveyor band is...
4345669 Wheelchair lift  
A lift for moving a wheelchair over a stairway includes a ramp, a wheelchair supporting platform and a mechanism for operating the platform over the ramp. When the lift is inoperative, the...
4258826 Combination stepladder and load lifting apparatus  
Two frame sections are hingedly attached at their top and each frame section contains a pair of wheels at the bottom. One of the frame sections consists of a pair of laterally spaced parallel side...
4183423 Ladder hoist  
A cart bolted to a short bottom section of a ladder carries a winch. A cable on the winch runs over a pulley on a short top section of the ladder and is connected to a carriage having wheels...
4049081 Operator-actuated elevating device  
An elevatable operator-actuated lifting device, including a lower support frame and a platform section telescopically interfitted with the support frame as to be elevatable with respect thereto....
4031980 Braking device for ladder lifter  
There is provided a cam type braking device for a ladder lifter arranged so that as soon as the lifting wire rope for the ladder lifter is broken, a brake cam is pressed against the associated...
4015685 Apparatus for aligning a mobile lift work platform  
Apparatus for aligning a work platform which is cantilevered outwardly and laterally on a carriage for movement up and down on parallel rails of an elevated tower is illustrated as including a...
3970170 Ladder bridging device  
This invention relates to a device useful in connection with bridging two sections of an extension ladder. The device takes the form of a sleeve structure which extends from the side rail of one...
3966018 Working platform lifting apparatus for aerial ladder truck  
A working platform lifting apparatus for an aerial ladder truck, wherein the working platform movable up and down along the ladder is arranged so that it does not interfere with the extension and...
3949833 Safety device for lifter-equipped extensible ladder vehicle  
A device for use with a high-altitude working vehicle provided with a vertically and horizontally revolvable and extensible ladder and an operator-carrying lifter movable up and down along the...
3921758 Aerial ladder truck  
There is provided an aerial ladder truck having suitable means whereby obstacles such as ice and snow to the rolling movement of the ladder extending and contracting rollers and lifter raising and...
3910378 Scaffold structure  
A scaffold structure comprising a ladder assembly that is maintained in a substantially vertical orientation during use by means of two arms extending outwardly from two support members and that...
3908801 Vertical hoist assembly  
A vertical hoist car assembly such as would be used in a large power plant chimney, a silo, a dam structure, or the like, is disclosed. The assembly includes a ladder shaped guide track having...
3891062 Telescopic lift for construction works  
There is disclosed a mobile lift made up of a rectilinear guide adjustably held in upward inclined position by a support having a base of which the end is wheel-mounted so that the lift may be...
3804207 LIFTING ATTACHMENT FOR LIGHTWEIGHT VEHICLES  
This lifting attachment is adapted for mounting on a pickup truck. When stowed it is carried on a ladder rack on the vehicle, and when in use it is mounted on the vehicle trailer hitch. The...
3799289 ELECTRIC STEPLADDER  
A self-standing, collapsible stepladder including laterally spaced side members or rails supporting therebetween a platform for movement up and down along the rails for raising and lowering a...
3749202 STAIRWAY SEAT CAR ELEVATOR  
The stairway seat elevator is composed of a pair of guide rails mounted on the side of a staircase in vertically spaced parallel relation, a seat car frame extending between said rails for guided...

Matches 1 - 50 out of 70 1 2 >