Bizarre Patents
Cloaking System Using Optoelectronically Controlled Camouflage
A Cloaking System designed to operate in the visible light spectrum, utilizes optoelectronics and/or photonic components to conceal an object within it.
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| Number | Title | Issue Date |
| 7310915 | Retractable column and method of forming The present invention is an improved apparatus and method for forming a retractable tower or column. The present invention includes pointed hooks wherein the hooks are attached to each section of a section chain, one in a horizontal direction and one in an off-set m... | 12/25/2007 |
| 7281609 | Elevator inspection safety devices An elevator car includes a cross-head portion and a balustrade mounted to the cross-head portion. The balustrade is moveable from a retracted position for normal operation of the car to a deployed position for inspection operation of the car. The car further include... | 10/16/2007 |
| 7231741 | Mobile cellular telephone tower A mobile cellular telephone tower comprises a self-propelled base and a tower connected to the base. The tower includes a base segment and at least a first extendable segment operatively connected to a second extendable segment. A winch is connected to the base, and... | 06/19/2007 |
| 7194358 | Lift collision avoidance system The present invention is directed to systems, devices and methods for avoiding collisions and detecting objects proximate to a surface. In one embodiment, a system for collision avoidance includes at least one sensor adapted to sense an object above a lift device an... | 03/20/2007 |
| 7140466 | Platform lift apparatus with integrated ladder for accessing attic storage space A platform lift system includes a mounting frame that is fixedly engaged into a scuttle hole formed in a horizontal supporting surface (i.e., attic floor or room ceiling) and a foldable ladder that is supported by the frame. A separate trolley carries a lift platfor... | 11/28/2006 |
| 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 |
| 7025365 | Elevatable and extendable platform A stowable platform for use with a vehicle movable from the stowed to the extended position in a single plane. Once extended, the platform support is locked, preventing further movement, and the platform itself is capable of further extension or elevation. ... | 04/11/2006 |
| 7014414 | Bale stacker Apparatus for for stacking papermaking pulp bales is disclosed, comprising two sets of lifting forks, which are directed towards each other for lifting bales, and a conveyor for inserting a new bale beneath the lifted bales. The lifting forks are horizontally movabl... | 03/21/2006 |
| 7004285 | Load-sensing mechanism for aerial work apparatus An aerial work apparatus having a boom mounted to a base, a platform attached to the distal end of the boom, a boom mechanism for positioning the platform, a boom control module mounted with respect to the platform, a vertical load-sensing mechanism mounted at the p... | 02/28/2006 |
| 6962236 | Platform lift apparatus with integrated ladder for accessing attic storage space A platform lift system includes a mounting frame that is fixedly engaged into a scuttle hole formed in a horizontal supporting surface (i.e., attic floor or room ceiling) and a foldable ladder that is supported by the frame. A separate trolley carries a lift platfor... | 11/08/2005 |
| 6955025 | Self-erecting tower and method for raising the tower A tall tower is divided into an upper section with a tower top and a lower section with a tower bottom. The sections are hinged together. The lower section is hinged to a tower base. A telescoping crane is attached to a lift point on the lower section. The crane is ... | 10/18/2005 |
| 6920940 | Hitch device for attaching farm implements to a tractor A farm implement of a tractor is hitched to two lift arms, each of which is moved by a respective actuating cylinder having two chambers connected to a feed circuit supplying a pressurized fluid; the feed circuit having, for each chamber, two feed lines for feeding ... | 07/26/2005 |
| 6811161 | Fire engine having extension ladder and lateral stabilizers A fire engine having an extension ladder mounted thereto, wherein said extension ladder may be rotated through a full 360 degrees while the ladder is fully extended—regardless of the vertical angle or position of the ladder with respect to the longitudinal axis of... | 11/02/2004 |
| 6405114 | Aerial work platform boom having ground and platform controls linked by a controller area network An aerial work platform supported by a riser boom, a telescoping main boom, and a jib boom. Boom movement may be controlled by a platform control module or a ground control module connected to a controller by a controller area network (CAN). Movement of t... | 06/11/2002 |
| 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 the guide rails and is used to transport items up and down ... | 03/19/2002 |
| 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 |
| 5803203 | Active scaffolding systems The invention consists of an active scaffolding system adapted to hold a payload, said active scaffolding system comprising: (a) a plurality of adjustable links and rigid links connected by joints; (b) a plurality of actuator devices associated with the a... | 09/08/1998 |
| 5685392 | Multiple lift platform with lateral movement A powered lift platform apparatus is disclosed having a fixed support structure and two independently operable platforms which move in both the vertical and horizontal direction, for use with transport containers, such as trailers, shipping containers or ... | 11/11/1997 |
| 5605203 | Automatic foldable emergency ladder system An automatic foldable emergency ladder system for use in a building having a smoke detecting device includes an inverted L-shaped housing having a horizontal portion and a vertical portion and being securely mounted to a perimeter wall of a roof of the bu... | 02/25/1997 |
| 5337858 | Safety system for multi-stage lifts A lift has a base frame supported on a pair of screw jacks and a pair of support legs when a multi-stage mast on the lift is to be raised. The support legs are slide mounted in guides and each is downwardly biased away from a control switch on the base fr... | 08/16/1994 |
| 5333544 | Mobile platform for operators of calenders A platform at one side of a battery of rolls in a calender can be moved up or down when the rolls are not driven or when a breastwork at the parapet of the platform is moved to a raised position so that an operator standing on the bottom wall of the platf... | 08/02/1994 |
| 5249642 | Lifting apparatus A lifting apparatus has a movable chassis, a vertically movable platform disposed over the chassis and a vertically swingable, telescopic boom body connected between the chassis and the platform. The chassis, boom body and platform are arranged to form a ... | 10/05/1993 |
| 5203425 | Personnel lift devices The present invention provides personnel lift devices that include at least one of six design features. Each of the design features is discussed individually. The lift device includes an operator's cage assembly exhibiting ease of operator access and a sa... | 04/20/1993 |
| 5159989 | Automatic hydraulic leveling system An automatic leveling system for a four-wheel vehicle system having outrigger assemblies at each of the four corners of the vehicle chassis and in which each outrigger assembly has an outrigger pad and a hydraulic cylinder for moving the pad downwardly an... | 11/03/1992 |
| 5127491 | Terra firma exterior-mount fire/rescue elevator A fire/rescue system which overcomes the deficiencies of internal and external fire escapes noted above by providing a plurality of compartments which are mounted to traverse the vertical side walls of a high-rise building to carry individuals from design... | 07/07/1992 |
| 5111906 | Retractable ladder apparatus A retractable ladder apparatus (30) for access between a lower and an upper floor is provided. A ladder (60) is moved by moving means, which may be a garage door opener (40), between a position of storage within the upper floor to a position where the low... | 05/12/1992 |
| 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 |
| 5098049 | Balanced supporting arm The invention relates to a balanced supporting arm, comprising a substantially elongate structural member which is mounted on a supporting assembly for tilting movement and which is provided with at least one bellows mounted under at least one end of the ... | 03/24/1992 |
| 4997064 | Device for automatically securing a climber climbing a wall This invention relates to a device for automatically securing a climber climbing a wall, wherein it comprises: a shaft guided in rotation, at least one drum comprising a groove for receiving a line wound around the drum at least once, an irreversible control m... | 03/05/1991 |
| 4979588 | Overhead impact sensing system An electrical deactivation circuit and a two piece overhead guard assembly including two separately movable bar members which extends upward and over the head of an operator located on the upper work platform of an aerial work platform. The guard bar memb... | 12/25/1990 |
| 4919235 | Fire exit system A fire escape system is described in which a latched escape door in a building is unlatched by withdrawal of a restraining pin from a latch mechanism, producing automatic opening of the door by any of various door-opening self actuating means described. I... | 04/24/1990 |
| 4869341 | Automatic control of work platforms This invention relates to the automatic control of work platforms and in particular to a circuit means that provides a safe operation and automatic relevelling of a work platform that is being raised and lowered by electrically powered hoists. Angle sense... | 09/26/1989 |
| 4821842 | Security unit for a hanging stage scaffolding A security unit for a hanging stage scaffolding motorized by two electric winches of which each is supplied through a control circuit, said stage having a platform or gondola directly or indirectly suspended by two lugs pivotally mounted on each of said w... | 04/18/1989 |
| 4792015 | Automatic escape ladder An automatic escape ladder is set forth for use particularly in multiple unit, multi-level residential dwellings. A compact interfolded ladder is positionable within an associated enclosure wherein said enclosure includes an upper pivotal portion and a lo... | 12/20/1988 |
| 4747424 | Hydraulic valve The present invention provides a valve for controlling fluid flow. The tapered actuation surface of the actuation cam of the present invention controlled by electric motors may be utilized to gradually open and close the various pistons which regulate flo... | 05/31/1988 |
| 4706570 | Crane with anti-skewing device A crane with an anti-skewing device comprising a platform suspended under a bridge deck by two end truck assemblies supported by runways on a bridge. Each end truck assembly includes two sets of trolleys and an upper load bar interconnects the two sets of... | 11/17/1987 |
| 4690246 | Articulated work platform with scissors motion An improved work platform suitable for mounting on a vehicle mounted telescoping boom. The work platform includes a fixed platform section mounted on the tip of the boom in conjunction with a leveling mechanism. Two movable side platform sections are pivo... | 09/01/1987 |
| 4690247 | Inspection car for bridge construction of a high level road The inspection car is intended to inspect the lower side of the bridge construction of a high level road from above the high level road as well as from the ground and it comprises a swingable and extensible boom vertically swingably pivoted on a rotatable... | 09/01/1987 |
| 4687073 | Hydraulically elevatable access equipment Access equipment including a vehicle (10) on which stands a mast (14) movable between horizontal and vertical positions and mounted for rotation about an axis (13). The mast is telescopically extendible and carries a pivoted boom (17) which is also telesc... | 08/18/1987 |
| 4660730 | Apparatus for controlling movement of valve override control handles Apparatus for use in supporting a plurality of override control handles of a control valve assembly, the control handles supported for movement in a first direction between engagement and disengagement with the control valve spools and supported for movem... | 04/28/1987 |
