Bizarre Patents
Process For Propelling Foodstuffs or the Like into a Crowd
A method of launching foodstuffs into a crowd for promotional and entertainment purposes.
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 |
| 7225616 | Stopping apparatus and method for oil pump In stopping apparatus and method for an oil pump, which are applied to a hydraulic actuator that works based on a hydraulic pressure derived from the oil pump driven by a motor, a backward rotation of the oil pump is prevented by resisting a remaining pressure that ... | 06/05/2007 |
| 7211971 | Linear actuator A linear actuator having a housing, a plunger slidably mounted to the housing between an extended and retracted position, and an electric motor drivingly connected to the plunger to move the plunger between its extended and retracted positions. A motor circuit contr... | 05/01/2007 |
| 7185939 | Hydraulic drive system for vehicle roofs The invention relates to a hydraulic drive system used for the covers of vehicle openings, in particular for vehicle roofs with a construction that can be opened. In said system, the actuator that is designed to displace the cover is supplied with a bulk current, wh... | 03/06/2007 |
| 6974115 | Electro-hydrostatic actuator An electro-hydrostatic actuator having a sealed housing filled with a dielectric fluid. A motor driven pump and electronics for controlling the pump are all immersed in the fluid. The pump is arranged to deliver fluid from the housing to a hydraulic cylinder to cont... | 12/13/2005 |
| 6938415 | Hydraulic/pneumatic apparatus An invented fluidic (hydraulic/pneumatic) actuation system is described wherein bidirectional, hydraulic/pneumatically driven elements of multiple components in a common hydraulic/pneumatic circuit inherently provide increases in pressure upon reaching mechanical en... | 09/06/2005 |
| 6237617 | Isolated proportional valve Herein is provided an improved proportional fluid control valve. The proportional valve includes a fluid valve that controls the flowrate of an output fluid. The fluid valve is coupled to a pressure chamber of the control valve. The position of the fluid ... | 05/29/2001 |
| 5996342 | Hydrostatic drive train controller An anti-stall and bias control for a hydrostatic drive train system is disclosed. The system is used on a hydrostatic drive vehicle with an engine coupled to a first and second hydraulic pump. The first and second hydraulic pumps are coupled to first and ... | 12/07/1999 |
| 5913811 | Battery-driven hydraulic excavator The battery-driven hydraulic excavator comprises an electric motor driven by power from the battery, a hydraulic pump driven by the electric motor, and a plurality of hydraulic actuators driven by operating oil from the hydraulic pump. There are provided ... | 06/22/1999 |
| 5862663 | System for raising and lowering the load support of an electric lift truck In an electric lift truck, an asynchronous electric motor, a reversible sealed pump driven by the motor, communicating with the hydraulic actuators and also with a reservoir, a device which measures the angular position and the angular velocity of the mot... | 01/26/1999 |
| 5845493 | Method and apparatus for operating a hydraulic drive The drive includes a reversible variable output pump (1), which supplies a hydraulic working machine (6) and is driven by an asynchronous motor (2). The working machine is intermittently hydraulically pressurized. During these times the asynchronous motor... | 12/08/1998 |
| 5758862 | Solenoid pump operated valve A flow control valve that has a solenoid operated pump that moves a poppet between an open and a closed position. The valve has a housing with an inlet, an outlet and a housing chamber that can allow fluid to flow from the inlet to the outlet. The poppet ... | 06/02/1998 |
| 5680761 | Hydraulic oil power unit including improved switching device A hydraulic oil power unit includes a motor for driving a hydraulic pump, a piston driven by the hydraulic pump, a driving power supply for the motor and a switch for providing the driving power supply for the motor. A switching device includes a semicond... | 10/28/1997 |
| 5469946 | Clutch actuation system The clutch actuation system provides for control of the clutch of a manual transmission in a motor vehicle. By use of hydraulics, a vacuum booster and a gradual pressure relief valve a smooth easy control of the manual transmission is accomplished. The va... | 11/28/1995 |
| 5400863 | Air duct and furnace cleaning system and method A power vacuum truck having a movable roof to accommodate expanding vacuum bags, and a method of raising the roof are disclosed. The power vacuum truck utilizes a hydraulic pump to drive a fan and compressor in order to eliminate mechanical linkages and t... | 03/28/1995 |
| 5063740 | Electrohydraulic servodevice for position control The position of a controlled system is regulated with a hydraulic actuator, which is directly linked to a hydraulic pump. The pump is driven in either direction by an electric motor, which is controlled by the output of rotatory direction and driving powe... | 11/12/1991 |
| 5033694 | Attitude control device for air or sea transportation craft An attitude control system for controlling a plurality of attitude control devices, which cooperate to establish the attitude of a vehicle includes redundant control units for outputting attitude control signals to each of the attitude control devices. Ad... | 07/23/1991 |
| 4953109 | Automated trash compactor system An automated trash compaction system having an hydraulic cylinder displacing a ram to compact trash in a mobile trash container and having an electronic control unit controlling the displacement of the ram. The electronic control unit generates a ram forw... | 08/28/1990 |
| 4742676 | Reversible hydrostatic transmission pump with drive engine speed control A control device for a drive unit, preferably the drive unit of a power vehicle, is provided having a hydrostatic transmission where the adjusting device of the latter and the adjusting device of the internal combustion engine are controlled by means of a... | 05/10/1988 |
| 4429705 | Manually actuated fuel valve control A hydraulic actuator and valve are used for the control of fuel to a burner. The actuator is energized to open the valve through a manual start switch and a manual reset switch to prevent the manual start switch from being held in either accidentally or i... | 02/07/1984 |
| 4247077 | Slow-opening valve operated by a solenoid pump A slow-opening valve including a main valve, a chamber for receiving a control fluid other than that controlled by the main valve, and a member within the chamber responsive to the volume of control fluid in the chamber for opening and closing the main va... | 01/27/1981 |
| 4080850 | Controls for combined hydrostatic and multiple speed range transmission units with automatic speed control and braking functions A drive train includes a hydrostatic transmission unit and a multiple speed range transmission unit arranged in series between a prime mover and a primary output shaft, variable displacement and torque transmitting capacity of the hydrostatic transmission... | 03/28/1978 |
| 4054155 | Hydraulic actuated control valve This invention describes a valve in which the flow gate is operated by a piston in a hydraulic cylinder. The piston is forced axially, against the resistance of a coiled spring, by means of hydraulic fluid pressure provided by a motor driven pump. Electri... | 10/18/1977 |
