Bizarre Patents
An armor with rollers is provided that enables a user to move in all positions by rolling on a hard and smooth surface while constantly varying his bearing points on the ground.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8113315 | Rear deck service ladder and handle assembly for combines A ladder assembly for accessing an elevated platform of a work machine such as an agricultural combine includes an upper ladder portion connected to an upstanding handrail of the elevated platform for upward and downward movement, and a combination lower ladder port... | 02/14/2012 |
| 8074768 | Powered operator access system An access ladder configurable from an extended position for providing access to a structure and a stowed position. The access ladder comprises an elongated first member having a first step extending laterally therefrom. An elongated second member is associated with ... | 12/13/2011 |
| 7337878 | Emergency ladder system An emergency ladder system for providing an exit from non-ground level floors of a building in the event of an emergency such as a fire includes an alarm system having fire detectors positioned in a building. The alarm system is operationally coupled to a ladder pos... | 03/04/2008 |
| 7240947 | Compact truck tailgate and general purpose utility ladder An exemplary embodiment sets forth an apparatus, including a non-collapsible single unit stair comprising: a pair of opposing side rails supporting at least a top step and a bottom step; a coupler adapted to couple the apparatus to an edge of a horizontal surface; a... | 07/10/2007 |
| 7182175 | Retractable telescopic boat ladder A telescopic ladder apparatus can be deployed from a closed receptacle on the stern portion of a boat. The ladder is formed with telescopic side rails supporting transverse treads that can collapse into a stored position in which the treads are placed adjacent one a... | 02/27/2007 |
| 7100741 | Roller assembly for a ladder An aerial ladder roller assembly to improve the function of the ladder during extension and retraction of sections of a multiple-section aerial ladder. One embodiment has a plurality of aligned apertures for rotatably mounting and a roller that is rotatably mounted ... | 09/05/2006 |
| 6962125 | Tide buster convertible stair A ladder system consists of a base and extension and a system for connection of the base to the extension for vertical height extension or horizontal lenght extension or for nesting the extension steps in the base for storage. ... | 11/08/2005 |
| 6938572 | Swim lift platform A swim lift platform using hydraulic force to lift a swimmer between positions in which the platform is above water level to a submerged position. The movement is under the control of a swimmer occupying the platform. ... | 09/06/2005 |
| 6832667 | Vehicle-mounted mobile adjustable ramp system A vehicle-mounted system includes a platform that is attachable to a front and a rear of a vehicle. A main surface of the platform is located above the vehicle. One or more ramps are rotatably connected to the platform. Each of the ramps includes an extending portio... | 12/21/2004 |
| 6789648 | Retractable ladder assembly A retractable ladder assembly for marine applications having a frame and a ladder having a pair of channel members pivotally connected to the frame and extendible there from in a vertical position and in a horizontal position. A plurality of rung members extend betw... | 09/14/2004 |
| 6401861 | Adjustable floating ladder for loading a dumpster A free-floating step ladder which can hang on the rim of a trash dumpster has a stepless hook portion for hanging the ladder on the dumpster, a platform to stand on while loading the dumpster, and a stairway from the platform which extends adjustably towa... | 06/11/2002 |
| 6347686 | Access device An access device for providing access between a lower level and an upper level the access device including a main body mounted for pivotal movement about a main body pivot mounting between an access position in which it enables access between the upper an... | 02/19/2002 |
| 6237523 | Stair device A stair device for use in entering and exiting the water from a water vehicle, swim platform or dock. A first embodiment of the stair device is best suited for use on water vehicles and is comprised of an upper tubular section having two parallel tubes ea... | 05/29/2001 |
| 5996737 | Access device An access device (1) for providing access between a lower level and an upper level. The device (1) includes a platform member (2), a ladder member (3) and a rotating actuator (4). The platform (2) and the ladder (3) are movable between an access position ... | 12/07/1999 |
| 5971106 | Step ladder A step ladder for mounting on the side of a tub to provide a secure way to reach over a tub to clean the opposing regions and walls of the tub. The step ladder includes a top step having front and back edges, left and right sides, and upper and lower surf... | 10/26/1999 |
| 5878836 | Structure of an escaping device An escaping device includes a main frame including a pair of vertical rods adapted to be fixedly mounted on an inner side of a wall, a pair of supporting rods horizontally mounted on the main frame and having a track, a supporting bracket mounted on the m... | 03/09/1999 |
| 5641035 | Combination pool ladder, fence and adjustable multi-level deck A combination pool ladder structure, fence and adjustable multi-level deck for an above-ground swimming pool having a wall which extends above the level of the ground including a frame for mounting proximate the external side of the wall, a first ladder p... | 06/24/1997 |
| 5558312 | Adjustable safety bracket for roofing An adjustable safety bracket for use in roof construction provides a support for a safety barricade to be erected along the edge of the roof. The bracket assembly includes an attachment member which engages the free end of a roof support bracket, such as ... | 09/24/1996 |
| 5287945 | Ladder for boarding inflatable boats An inflatable boat boarding ladder, adaptable to any size inflatable boat, for assisting divers to exit the water and to board the boat. The ladder, supported at an outside angle to the vertical, is prohibited from rotating under the boat when the ladder ... | 02/22/1994 |
| 5103934 | Method and apparatus for providing a fire escape for a multi-story building An emergency escape system for multistory buildings in which stair units are stored in recesses in the floor of each above grade level of the building. The stair units are released for gravity depolyment to the next below balcony in an emergency, and a co... | 04/14/1992 |
| 5025891 | Escape for a building The escape of the present invention is installed in each storey of a building and comprises a storage space for the escape, a sliding platform, and an escape passageway. The storage space is formed in each storey of the building to have a configuration of... | 06/25/1991 |
| 4971168 | Boat side-ladder The side ladder has upper and lower footpaces (1, 3) connected with side elements (5) on which a flight of steps (7) is hinged. A first actuator (11) is provided for withdrawing the ladder from a housing (15) on the boat and a second actuator (13) is prov... | 11/20/1990 |
| 4813514 | Access ladder for pleasure watercraft A marine installation comprising a watercraft having a generally horizontal surface, and a ladder assembly comprising a ladder frame including spaced, parallel side bars, and spaced, parallel rungs extending between the side bars, and a mechanism for moun... | 03/21/1989 |
| 4768618 | Boat ladder devices with step standoff feature A ladder device for a boat has a mount unit and a separate step unit that may be moved between a use position with a step thereof immersed in the water in which the boat floats and a storage position where the step is located out of the water. The step in... | 09/06/1988 |
| 4733752 | Extensible ladder for boats Contractible and extensible ladder of the lazy-tong type for attachment to the underside of a swim/dive platform of a boat or to a deck of a boat. The ladder and the swim/dive platform or deck include coacting means so constructed for positioning the ladd... | 03/29/1988 |
| 4724925 | Boat boarding ladders A boarding ladder which may be mounted on a topsides surface of a boat to be swingable between a raised position where all parts of the ladder are above the waterline of the boat and a lowered position where at least one step of the ladder extends below t... | 02/16/1988 |
| 4722419 | Swim platform A swim platform is described in which two S-shaped members spanned by a step are pivotally attached beneath a platform which is attached to the transom of a boat. The step hangs outboard of an outboard edge of the platform in use, or may be folded to rest... | 02/02/1988 |
| 4712503 | Boat transom platform step device A step device for mounting on the transom platform of a boat that may be moved between a use position wherein a step thereof is immersed in the water in which the boat floats and a storage position wherein the step is located above the platform out of the... | 12/15/1987 |
| 4541507 | Universal folding ladder for boats A universal folding ladder for inflatable boats and pleasure craft comprising a tubular structure intended for straddling the gunwale of a boat and including at least two L-like elements extending parallel to each other and being interconnected at the end... | 09/17/1985 |
| 4527297 | Pool entrance and supporting structure A pool entrance and supporting structure which will both provide an entrance or exit from an above-ground pool and will also provide a support for both a skimmer and a return. The pool entrance and supporting structure (40) includes an entrance structure ... | 07/09/1985 |
| 4436180 | Method and a device for pivoting an accommodation ladder A method and a device for pivoting an accommodation ladder from a stowing position on a ship's deck to an active position outside the ship's side by means of at least one davit (17) and a pulley (21) for the operating wire (22) of the ladder, said pulley ... | 03/13/1984 |
| 4245716 | Vehicle access ladder The instant disclosure is directed to an access ladder for the elevated operator's platform of a vehicle, the ladder being pivotable in two planes between operative and inoperative positions about two separate axes. Counterbalance means interconnecting th... | 01/20/1981 |
| 3999334 | Webb basement window escape This device consists primarily of a molded plastic structure having flange mounting means for mounting the structure to the basement wall. The device includes a window portion on a vertical plane adjacent to a hinged top bubble which enables more light to... | 12/28/1976 |
| 3991851 | Safety ladder for above-the-ground swimming pools A safety ladder for an above-the-ground swimming pool in which a pivotal ladder section is both detachable and capable of being swung up off the ground in order to prevent unauthorized access to the pool by small children, animals, and the like.... | 11/16/1976 |
| 3967695 | Yieldable vehicle step A yieldable vehicle step is provided having a rigid foot support member pendantly supported from the side of a vehicle frame by a pair of relatively strong, but deflectable legs. Each leg is constructed from a chain and an outer deformable stiffener membe... | 07/06/1976 |
| 3964572 | Adjustable safety ladder for above-the-ground swimming pools A safety ladder for an above-the-ground swimming pool, such ladder being dependent from a platform mounted on top of the pool wall. A stationary ladder section is clamped to the platform on the water side of the pool such as to be adjustable in length for... | 06/22/1976 |
