Bizarre Patents
Decorative Jeweled Wheel Cover
An improved wheel is provided wherein decorative items such as gem stones are embedded in either the wheel surface, a special mounting section attached to the wheel surface, or to a spoke strap that wraps around each spoke and positions embedded gem stones on the outside surface of the spoke.
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| Number | Title | Issue Date |
| 7363824 | Flow sensor A flow sensor for flowing media with a cylindrical housing (2) and with a sensor element located in the housing (2), the housing (2) preferably having an outside thread (3) and being screwable into a union (4) of a pipe (5) ... | 04/29/2008 |
| 7357462 | Hydraulic brake system for a wind energy plant The hydraulic brake system comprises a piston/cylinder unit (14) for activating and releasing a brake (12), comprising a volume (16) adapted to have a pressurized working fluid supplied thereto for moving the piston (24) from a braking po... | 04/15/2008 |
| 7342371 | System and method for detecting motor run condition A motor control system for detecting motor run condition comprises power switches for connection to an AC line for controlling application of AC power to the motor. An input receives a motor start command. A controller is connected to the input and controls operatio... | 03/11/2008 |
| 7299897 | Hydraulic platform lift incorporating positive displacement valve, and positive displacement valve for hydraulic platform lift A hydraulic platform lift, having hydraulic pump means and first and second hydraulic cylinders each having a piston member therein, each operatively coupled to a respective side edge of a platform to permit raising and lowering of the platform. A positive displacem... | 11/27/2007 |
| 7246784 | Spring-loaded shelf for a cooler A spring-loaded shelf for an existing beverage cooler, which obviates the need for a user to reach more deeply within the confines of the cooler for a beverage as the contents of the cooler become depleted. The spring-loaded shelf has a base, a platform pivotally at... | 07/24/2007 |
| 7240771 | Mast staging hydraulic circuit A multistage mast assembly for use on a lift truck and method of operation for staging first and second mast sections of the multistage mast assembly. Each mast section has a retracted position and an extended position. The apparatus includes a mast staging hydrauli... | 07/10/2007 |
| 7134528 | Hydraulic elevator with valve for preventing discharge of pressure accumulator and method of controlling same A hydraulic elevator with a pressure accumulator includes a pump fir conveying hydraulic oil between the pressure accumulator and a hydraulic drive, such that the direction of rotation of the pump can be changed. An electrically controlled cylinder line stop valve i... | 11/14/2006 |
| 7114205 | Collapsible bed frame A collapsible bed frame (18) for supporting a mattress, the collapsible frame (18) having a number of frame members (32). A number of pivots (34) connect pairs of the frame members (32) at the midpoints of the frame members (32 | 10/03/2006 |
| 7106014 | Lectern A lectern incorporating a support member having a recess that can receive a control panel or laptop or notebook computer, for use with the by a speaker or other presenter. The support member defines an interior, and includes a keyboard tray slidably received within ... | 09/12/2006 |
| 6996937 | Potential energy storage system The present invention relates to a system for generating electrical power using hydraulic supports on which a building structure is mounted. A pump injects fluid into the supports to raise the building structure and thereby store energy in the elevated structure. A ... | 02/14/2006 |
| 6978609 | Electrohydraulic servo door drive for operating a door, a window, etc. The invention pertains to an electrohydraulic servo door drive for operating a door, a window, or the like, with a hold-open function, where a valve is installed in the hydraulic circuit to implement the hold-open function. To create an electrohydraulic servo door d... | 12/27/2005 |
| 6971481 | Hydraulic elevator with motor controlled hydraulic drive and method for controlling the hydraulic elevator The invention relates to a hydraulic lift comprising a pressure accumulator (17). Hydraulic fluid can be transported between the pressure accumulator (17) and a hydraulic drive (2) by means of a pump (13), the rotational direction of the ... | 12/06/2005 |
| 6957721 | Hydraulic elevator with an accumulator A pump is situated between the hydraulic drive and the accumulator, this pump being driven by a motor and conveying hydraulic oil from the hydraulic drive to the accumulator and vice versa without the presence of control valves which influence the flow of hydraulic ... | 10/25/2005 |
| 6817449 | Vehicle lifting device Vehicle lifting device comprising a number of columns, guides on each column for guiding a carriage for substantially vertical displacement along the column, which carriage bears vehicle supports. Lifting supports engage on the columns and the carriage. The lifting ... | 11/16/2004 |
| 6814187 | System for detecting liquid in an inground lift A system for detecting liquid in an inground lift has a tube with an open end disposed within the internal cavity defined by the containment housing of the inground lift. The tube is in fluid communication with a source of pressurized gas. A pressure sensor generate... | 11/09/2004 |
| 6742629 | Valve control unit for a hydraulic elevator A control valve unit for a hydraulic elevator includes two control valves wherein the flow of hydraulic oil from a tank to a lifting cylinder driving an elevator cabin and/or from the lifting cylinder to the tank can be controlled. In case of an upward movement of t... | 06/01/2004 |
| 6719099 | Integral elevator hydraulic power unit A hydraulic power unit for use in conjunction with an elevator construction having an elevator car operably connected to a pair of hydraulic rams comprises a chassis having a floor and a sidewall forming a hydraulic fluid sump region. The hydraulic rams are mounted ... | 04/13/2004 |
| 6662905 | Elevator which counterweight is also the plunger of the propelling fluid dynamic device which produces and controls the movements thereof An elevator includes a special propelling fluid dynamic device which uses as a plunger the duly balanced car counterweight. The car conveys people and things upwards and downwards within a vertical conduit or hoistway supported by a cable extending to an ... | 12/16/2003 |
| 6595329 | Forklift truck with a lifting device A forklift truck includes two driven front wheels, a lifting device, and at least one elevatable component. A flexible hydraulic line is wound up on a drum of the forklift truck. The hydraulic line connects the elevatable component with a non-elevatable c... | 07/22/2003 |
| 6537017 | Cantilevered, self-adjusting pneumatic pallet positioner A pallet positioner includes a support frame that consists of a main upright structure with a pair of spaced, parallel outriggers extending horizontally at ground level. The distal ends of the outriggers are connected by a flat, low-profile ramp. The upri... | 03/25/2003 |
| 6510923 | Control method and apparatus for a hydraulic elevator using only load pressure data A method for controlling a hydraulic elevator whose car can be displaced by a hydraulic drive mechanism by hydraulic oil fed through a cylinder line or evacuated from said hydraulic drive mechanism by a pump that cooperates with a first control valve unit... | 01/28/2003 |
| 6505711 | Hydraulic elevator, comprising a pressure accumulator which acts as a counterweight and a method for controlling and regulating an elevator of this type A hydraulic elevator with a pressure accumulator acting as a counterweight, includes a first pump for conveying hydraulic oil through a pump line, at least one valve unit, and a cylinder line to and from a hydraulic drive for a car, a second pump for conv... | 01/14/2003 |
| 6499567 | Hydraulic power unit for an elevator drive A vertically oriented hydraulic power unit for an elevator drive includes an outer tank for drive fluid and an inner tank for fluid used to submerge and cool a motor, the fluids being exchangeable to maintain temperature in the inner tank at or below a sp... | 12/31/2002 |
| 6435310 | Hydraulic elevator system A hydraulic elevator system of an inverter control method directly controlling a flow amount of a pressed oil discharged from a hydraulic pump by a speed control of a motor driving the hydraulic pump, which can improve energy efficiency and stability. The... | 08/20/2002 |
| 6422349 | Hydrostatic displacement drive for lifting and lowering and holding loads, in particular for lifts The hydraulic or pneumatic drive for lifting and lowering loads, in particular for lifts, has a working cylinder (11) forming a pressure chamber (14) connected to a pressure fluid source (39) and subjected to a pressure fluid. It also has a lifting piston... | 07/23/2002 |
| 6378660 | Hydraulic elevator without a machineroom A hydraulic elevator system having a configuration without a machineroom is disclosed. The hydraulic elevator system includes a valve assembly that is separated and remotely located from the pump and fluid tank. This arrangement permits the valve assembly... | 04/30/2002 |
| 6182796 | Vehicle lift Apparatus for use in lifting a vehicle from a substantially flat surface. The apparatus includes a pair of levers, each having a first lever and a second lever pivotally joined together cris-crossing one another and operable in a scissor-like motion betwe... | 02/06/2001 |
| 6164415 | Hydraulic control apparatus for industrial vehicles A lift control valve is switched based on the manipulation of a lift lever, so that a lift cylinder extends or retracts to move a fork, supported on a mast, to move up or down. A check valve, which is actuated with a pilot pressure, is placed between the ... | 12/26/2000 |
| 6125970 | Hydraulic device for forklift A hydraulic device for a forklift is disclosed. The forklift includes a tilting mast and a fork supported by the mast so that the fork is lifted and lowered. A tilt cylinder operates to tilt the mast by means of oil supplied by a tilt valve. A restricting... | 10/03/2000 |
| 6085873 | Pneumatic elevator A pneumatically operated elevator has a pair of elongated vertical tubular cylindrical shafts and horizontally extending cross-over shafts extending between the vertical shafts adjacent their upper and lower ends to provide a substantially closed system. ... | 07/11/2000 |
| 6059073 | Overspeed valve for hydraulic elevator A hydraulic elevator includes a car supported by at least one jack, and a fluid line for venting hydraulic fluid from the jack for lowering the car. An overspeed valve, disposed in the fluid line, comprises a housing having an inlet chamber and an outlet ... | 05/09/2000 |
| 5992573 | Elevator up start A drive control system for an hydraulic elevator that reduces the time delay between the starting of an hydraulic pump in the system, and the first upward movement of the elevator.... | 11/30/1999 |
| 5975246 | Hydraulically balanced elevator A hydraulic elevator includes a car engaged with a first hydraulic ram, a counterweight engaged with a second hydraulic ram, and a pump to transfer hydraulic fluid between the hydraulic rams. The counterweight hydraulically balances the car without the re... | 11/02/1999 |
| 5636652 | Valve for a hydraulic elevator A transition valve for a hydraulic elevator includes a block, a spool, an actuator, and an end cap. The actuator may be either a solenoid type actuator or an electric motor type actuator. The end cap includes an opening permitting engagement between the a... | 06/10/1997 |
| 5636713 | Multiple RAM assembly and recuperative drive system for hydraulic lift A multi-stage hydraulic ram assembly for the accumulator drive system of an elevator assembly includes a plurality of piston-cylinder arrangements connected hydraulically in parallel and mechanically in series. The piston-cylinder arrangements are dispose... | 06/10/1997 |
| 5603390 | Control system for an elevator A control system for controlling the motion of a hydraulic elevator calculates a deceleration distance based upon the elevator velocity and begins the deceleration phase of the elevator motion upon the elevator reaching the calculated distance from the la... | 02/18/1997 |
| 5593004 | Servo control for hydraulic elevator A hydraulic elevator up direction control system is provided that has a circulating valve connected between the supply and the return of a source that normally supplies pressure to the cylinder of an elevator. The circulating valve is controlled by a comp... | 01/14/1997 |
| 5586619 | Lifting apparatus The invention comprises a lifting apparatus having a mobile housing with three telescoping sleeves slidably mounted in one another and in said housing to slide upward in telescoping relation out of said housing. The housing has a hydraulic piston and cyli... | 12/24/1996 |
| 5579870 | Water-driven robots Water driven robots are provided which can be used for moving different objects at different controlled directions and frequencies to obtain energy and power from the flow of a liquid, such as water. A container (10) contains a siphonic outlet which is ca... | 12/03/1996 |
| 5579868 | Procedure for operating an elevator, and an elevator machinery Procedure for operating an elevator, in which the power for moving the car as well as the accelerating/decelerating power of the whole system is, in all motional states of the elevator, obtained from/returned to a hydraulic pressure accumulator (1) charge... | 12/03/1996 |
