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| Number | Title | Issue Date |
| 8104576 | Scaffold steps The invention relates to scaffold steps, with two separate side pieces (11) and a plurality of separate step elements (13, 13′, 13″), which can be detachably coupled to each other and to the side pieces. ... | 01/31/2012 |
| 7063187 | Ladder attachment system A ladder attachment system for supporting a plurality of items in an easy to access location. The ladder attachment system includes a tray positionable upon an upper platform of a ladder, and a pair of extended legs extending from the tray for engaging the support l... | 06/20/2006 |
| 7017713 | Stacker crane A mast in a conventional stacker crane is configured to extend in a vertical direction. Accordingly, the mast is not sufficiently rigid, and may swing in a running direction during running or when the running operation is stopped. An attempt to increase the rigidity... | 03/28/2006 |
| 6966406 | Step platform attachable to a ladder A ladder step platform can be mounted on any ladder having hollow rungs extending between ladder rails. This ladder step platform is especially intended for use with conventional extension ladders. The ladder step platform includes a tread or step plate extending be... | 11/22/2005 |
| 6941889 | Apparatus and method for boarding animals into a boat An assembly for boarding swimming animals into a boat having a boat ladder, and having an elongated ramp with a sidewall. A plurality of apertures is formed through the sidewall, and a connection assembly is connected to the ramp. The connection assembly includes a ... | 09/13/2005 |
| 6786300 | Step attachment for ladders A unitary step unit has a generally rectangular main body portion with opposed transverse ends and laterally opposed sides. One end is bent downward and angularly outward with respect to the main body portion and terminates in a short upturned lip that extends angul... | 09/07/2004 |
| 6637548 | Personal stand and method of using a personal stand A personal stand incorporating a ladder, a user supporting platform and a load sensitive pliant suspender that is easily adapted for use with an extension ladder. The personal stand improves the user's footing as well as the user's comfort. Pliancy of the... | 10/28/2003 |
| 6412601 | Ladder pan A suspendible container for holding items that is capable of being attached to holes on a horizontal surface. The container is particularly adaptable to being attached to the top cap of a ladder. The container includes at least one prong which attaches to... | 07/02/2002 |
| 6401862 | Stepladder organizing assembly A stepladder organizing assembly for increasing a surface area of a head step of a stepladder includes a base portion with a top surface and a bottom surface. A peripheral shoulder is integral to and extends away from each of a plurality of sides. A lip i... | 06/11/2002 |
| 6352135 | Accessory device for ladders An accessory for installation on a ladder having hollow rungs comprises a holding arm which is shaped to fit within a hollow rung of a ladder. The accessory includes a ratchet assembly mounted within one end of the holding arm. A paint supply holding asse... | 03/05/2002 |
| 6272413 | Safety system for boom-equipped vehicle While a crawler body 110 is traveling, infrared sensors 144 and an elevational difference calculator 132 incorporated in a controller 130 detects the magnitude of a step present ahead of the crawler body 110. A safety speed calculator 134 calculates a saf... | 08/07/2001 |
| 6142255 | Ladder, member for connecting a rail to a horizontal element of a ladder, and method A member for connecting a rail to a horizontal element of a ladder. The member comprises a first portion that connects to the horizontal member. The member also comprises a second portion which connects to the rail and extends essentially in parallel with... | 11/07/2000 |
| 5975240 | Platform for ladders A safety platform foldable structure for a ladder for a worker to stand on. The platform structure has a platform flooring in the shape of the letter H which is removably mountable to one rung of an upstanding ladder to an open horizontal or vertical clos... | 11/02/1999 |
| 5779208 | Movable step platform for ladders An adjustably positionable support platform for use in combination with an extension ladder which includes a generally planar deck having a load supporting assembly to accommodate a person standing thereon. The load bearing assembly comprises a plate with... | 07/14/1998 |
| 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 foot a comfortable support, in addition to the ladder rung... | 08/16/1994 |
| 5158023 | Scaffold table for sheet rock finishers A scaffold table for sheet rock finishers includes a horizontal planar base with subtending walls and a spaced apart U-shaped border wall that together define a U-shaped elongate slot sized to cradle wide-bladed masonry tools therein. The table includes a... | 10/27/1992 |
| 5148891 | Ladder extension step apparatus A ladder extension member is arranged for securement to an associated ladder step of an associated ladder, wherein the organization is dismounted relative to the ladder step for resecurement thereto to provide an extension step. The extension step include... | 09/22/1992 |
| 5111908 | Pipe step A pipe step for providing a flat supporting surface on the top side of a horizontal pipe. The step includes a pair of channel members each having arcs cut in the flange portions thereof to meet with the pipe. U-bolts are provided for clamping the channel ... | 05/12/1992 |
| 5072808 | Ladder adaptable platform A ladder adaptable platform for attachment to a typical extension ladder which has a pair of parallel side rails and spaced rungs. The ladder adaptable platform has a platform surface which is engageable at the backside of a desired rung, the platform sur... | 12/17/1991 |
| 5058707 | Work shelf for a folding stepladder A work shelf for removable installation and use on a stepladder to provide an enlarged, sturdy area for holding tools and material. The work shelf includes a platform area of a width greater than the distance between the ladder rear legs, a neck extending... | 10/22/1991 |
| 5056620 | Stepladder platform A stepladder platform which can be installed onto the steps of a stepladder to provide an enlarged standing area. A restraining means at the rear engages the stepladder step to prevent forward movement and tilting. A restraining means at the front prevent... | 10/15/1991 |
| 5031723 | Ladder accessories This invention relates to devices which adapt to and attach to ladders and step ladders to enhance the balance and stability of the user and to provide support for equipment, tools and supplies. Supporting means comprising a wide foot plate and supporting... | 07/16/1991 |
| 4953661 | Ladder attachment An attachment for use on a ladder to provide a step or tool support having a frame which can be supported on a ladder, and a movable structure which is pivotally mounted on the frame for movement between a retracted and extended position to provide the st... | 09/04/1990 |
| 4910927 | Knee supporting crutch attachment An attachment for existing crutches includes a foldable mechanism having a knee supporting platform and which is shiftable from a horizontal use position, on the inside of a crutch, to a vertical stowed position. Provision is included for vertical adjustm... | 03/27/1990 |
| 4907675 | Modular constructional element in particular of a ladder or scaffolding This modular constructional element (14), which is of the type comprising at least two uprights between which at least one crosspiece extends, is such that each end of the uprights is screw-threaded and adapted to cooperate with a fixing ring (18, 19) for... | 03/13/1990 |
| 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 accomodate a range of angles of inclination of the ladder relativ... | 01/31/1989 |
| 4706918 | Ladder accessory A ladder accessory with an upwardly open receptacle is designed to rest on a rung of a ladder or step-ladder and its shape cooperates with one upright of the ladder prevent transverse movement of the accessory or rotation in either direction relative to t... | 11/17/1987 |
| 4696372 | Portable step and carrying device for stud walls A portable step-forming device releasably attachable to a vertical wooden stud comprises a U-shaped gripping member for closely receiving a stud member, a step member attached to one prong of the U-shaped member and further having an enlarged end for reta... | 09/29/1987 |
| 4676468 | Portable carrier device for temporary attachment to a support A paint pot carrier comprises a unitary moulded body defining a pot-receiving well (3). A hooking web (8) of the body enables the carrier to be hooked over a ladder rung (R), an inclined shoulder (14 or 15) bearing against an adjacent one of the ladder st... | 06/30/1987 |
| 4660794 | Ladder tray A work tray for mounting on hollow rung ladders. The tray has a single shaft which goes through one rung of the ladder. Lock means are provided to keep the tray from rotating or from pulling out of the rung. Angular adjustment means are provided so that t... | 04/28/1987 |
| 4648593 | Device for simulation of climbing An exercising device for the simulation of climbing includes a pair of side support units, each of which comprises a front leg and a back leg pivotally connected at their upper ends. The front and back legs of each pair are interconnected by a support mem... | 03/10/1987 |
| 4445659 | Combination bracket and adjustable ladder tray A combination bracket and adjustable ladder tray for holding the tools and materials of a tradesman in close proximity to his area of work while he is working on an extension ladder. The device of this invention includes a tray contoured to fit the most c... | 05/01/1984 |
| 4437544 | Service platform for a ladder A service platform for a ladder has a ladder rung locking means that provides support for a frame member upon which a user stands. A scissor-like action is produced about a bearing wherein one lever arm is an extended arm attached to the frame and the oth... | 03/20/1984 |
| 4428456 | Lookout convertible to a compact dolly A preferred tower of a lookout is triangular in cross section and tapers inwardly from the bottom to top. The tower has an upper and a lower section of about equal lengths, and the tower can be easily and quickly disassembled, and then the sections nested... | 01/31/1984 |
| 4405141 | Servicing steps to be mounted on the bumper of a truck A pair of separate stackable steps is described, one for supporting each foot of the user. Each step includes a sheet metal body that comprises a bumper engaging fulcrum section inclined upwardly proceeding towards its free edge and having a bumper engagi... | 09/20/1983 |
| 4332308 | Safety stepladders Stepladders having flat tread steps have a step extender fixed along the rear edge of the first step from the top of the ladder to increase the width of the step bearing surface and improve ladder safety. The extender comprises a flat tread portion and a ... | 06/01/1982 |
| 4189029 | Scaffold device A scaffold device has two leg members having at their upper end spacers to space the legs away from a wall or other structure. Each leg has a support assembly for a platform upon which a worker may stand. The support assemblies comprise a pair of sleeves ... | 02/19/1980 |
| 3985203 | Ladder landing A landing for a ladder or the like includes a support bracket adapted to be secured to the upper end of a ladder by a tie bar passing through a rung thereof. The bracket includes a bar rigidly disposed in the channel cavity of the ladder rail, and a suppo... | 10/12/1976 |
