Bizarre Patents
A kissing shield comprised of a thin, flexible membrane and a frame or holder.
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 |
| 7640743 | Aircraft flight control user interface linkage system A user interface linkage system includes first and second user interfaces that are linked by a single hydraulic circuit. The system is configured to provide compensation for relatively slow changes in hydraulic fluid pressure due, for example, to temperature variati... | 01/05/2010 |
| 7555901 | Drive mechanism What is disclosed is a drive mechanism, in particular for blanking and nibbling machines, comprising a hydraulic force transmitting element and a spindle drive for driving the force transmitting element, wherein a pre-tensioning means for pre-tensioning the force tr... | 07/07/2009 |
| 7341521 | Limited placement joystick control system A joystick control system includes a first pair and a second pair of fluid enclosed resilient tubes with each pair of tubes having generally parallel spaced pressure sensing portions confined within a support housing with one pair of sensing portions disposed perpen... | 03/11/2008 |
| 7318553 | Apparatus and method for heating fluids An apparatus for heating a liquid includes a housing having an internal chamber and a rotor disposed in the chamber. The rotor is preferably cylindrical and operates inside a bore provided by the housing without touching, the shape of the bore preferably being paral... | 01/15/2008 |
| 7263831 | Air-to-oil intensifying cylinder A pressure intensifier for generating a relatively large force includes a plurality of pistons driven in advancing and retracting directions. The pressure intensifier includes a rod selectively drivable into a cavity to amplify the force acting on one of the pistons... | 09/04/2007 |
| 7255202 | Truck mounted forklift with double-acting freelift mast A forklift truck for mounting on the rear of a carrying vehicle comprises a u-shaped chassis having a crossbar and a pair of side bars mounted at the ends of the crossbar and projecting forwardly therefrom. A wheel is located adjacent the free end of each of the sid... | 08/14/2007 |
| 7073631 | Lifting device with synchronization mechanism A lifting device for a transfer system, in particular for a transfer system with a pneumatic drive, raises and/or lowers transported goods. The lifting device has at least two lifting pistons (3), whose movements are synchronized by means of a synchronization... | 07/11/2006 |
| 7051947 | Heat generator for a motor vehicle A heat generator for a motor vehicle comprises a rotor (1), a stator (13) in which the rotor (1) induces by rotation electrical currents that generate heat in the stator (13), and a coolant duct (16) adjacent to the stator (13 | 05/30/2006 |
| 7021172 | Hydraulic throttle for vehicles A hydraulically operated throttle system that has the hydraulic system components installed entirely within the throttle grip on the handlebar. A regular throttle cable is run through the frame/handlebar where it connects to the hydraulic system. A three-piston syst... | 04/04/2006 |
| 6986249 | Apparatus for coupling force-activated actuators An apparatus comprises first (3) and second (5) force-activated actuators, each having a fluid displacer (7, 9) and force control lever (19, 21) coupled to the fluid displacer, a conduit (15) for transporting fluid between the flui... | 01/17/2006 |
| 6971237 | Servoactuator having motor-driven actuator with hydraulic force amplification A servoactuator (20) is operatively arranged to control the movement of an output member (21) in either of two directions in response to a command signal. The servoactuator includes an electric motor (25); a first transmission mechanism (34 | 12/06/2005 |
| 6955048 | Device for telecontrolling a function of drives The invention relates to a device for telecontrolling a function of drives for vehicles or machines. The device consists of at least two manual gearboxes which are arranged at a distance from the drive to be controlled, the gearboxes respectively having a double act... | 10/18/2005 |
| 6948538 | Low maintenance balanced fueling crane, sealed counterbalance therefor, fuel drip collector and environmental drain therefor A fueling crane comprises an extensible boom rotatably associated with a pedestal wherein the extensible boom has a first end rotatably affixed to a fuel inlet pipe mounted on the pedestal and a second end terminating in a fueling nozzle. The extensible boom has at ... | 09/27/2005 |
| 6851261 | Servoactuator having motor-driven actuator with hydraulic force amplification A servoactuator (20) is operatively arranged to control the movement of an output member (21) in either of two directions in response to a command signal. The servoactuator includes an electric motor (25); a motor controller (24); a first... | 02/08/2005 |
| 6575264 | Precision electro-hydraulic actuator positioning system An electro-hydraulic actuator system (10 or 140) includes a hydraulic actuator (27) having a pair of fluid filled chambers (29, 30) and being operable to provide an actuator output (12) as a function of fluid pressures at the chambers. An electric-hydrost... | 06/10/2003 |
| 6298941 | Electro-hydraulic power steering system An electro-hydraulic power steering system comprising an elongated vehicle steering linkage rack with a rotatable steering gear in mesh with rack teeth and extending within an elongated power assist cylinder of a rack housing. A rack piston separates the ... | 10/09/2001 |
| 6223533 | Pressurized fluid device A primary pipe system includes a master cylinder with corresponding pressure sensor that produces a primary electrical signal. A secondary pipe system includes a working cylinder with a pressure sensor that produces a secondary electrical signal. The seco... | 05/01/2001 |
| 6029450 | Hydraulic synchronizing circuit A hydraulic synchronizing circuit includes at least one master cylinder unit including a primary chamber, a secondary chamber, a piston and at least one piston rod, the piston having a primary effective surface and a secondary effective surface. The hydra... | 02/29/2000 |
| 5979163 | Rotationally pivotal motion controller A rotationally pivotal motion controller pivotally interconnects two adjoining elements and controls the pivotal motion of a first of the two adjoining elements with respect to a second of the two adjoining elements. The rotationally pivotal motion contro... | 11/09/1999 |
| 5655371 | Motion control mechanism of oil pressure cylinder without oil pressure pump A motion control mechanism of the oil pressure cylinder comprises an oil storing cylinder, a driving rod and a reversible motor. The oil storing cylinder is in communication with the oil pressure cylinder having a piston rod and is provided therein with a... | 08/12/1997 |
| 5638680 | Device for double-acting hydraulic systems A double acting hydraulic system including a master cylinder and a slave cylinder. Each of two slave cylinder spaces has a nipple boring (12, 22), for a nipple valve (40, 50), with an internal section in a form of a seat (16, 26) cooperating with an end (... | 06/17/1997 |
| 5483796 | Fluid cylinder A second pressure intensifying cylinder subchamber is employed for moving a pressure intensifying piston toward the other side, and the necessity for a control valve with a throttle is thereby eliminated. The pressure intensifying piston is incorporated i... | 01/16/1996 |
| 5481877 | Double acting pulsator with valved piston A gear shift device for gear boxes for vehicles, comprising at least one pair of mutually connected, double-acting hydraulic cylinders (1,2), where the pair consists of a master cylinder (1) and a slave cylinder (21). The master cylinder can be operated v... | 01/09/1996 |
| 5431015 | Flexible bellows actuation system A closed loop fully self-contained actuation system for converting a mechanical input motion into a mechanical output motion, which actuates a device such as a flight control surface on an aircraft, comprises an input actuator including a first fluid pres... | 07/11/1995 |
| 5419401 | Oil-pneumatic load control device A load control device applicable on agricultural machinery in general and in particular on machinery used for direct planting, so that the working components in contact with the ground will maintain the same load constantly at all times for any ground pro... | 05/30/1995 |
| 5351600 | Hydraulic booster for vehicle A hydraulic booster for a vehicle and more particularly an improved hydraulic booster with improved brake-relieving action, among other improvements.... | 10/04/1994 |
| 5334062 | Self-synchronizing hydraulic control systems for marine engine transmissions A hydraulic control system comprising master and slave pressure units having pistons and which are filled with fluid. The master piston is connected to a control lever, while the slave piston is connected to an object to be controlled such as a clutch lev... | 08/02/1994 |
| 5260722 | Method and apparatus for advancing a carriage by fluid displacement Methods of and apparatus for advancing a carriage utilize a displacement pump for displacing a selected quantity of fluid. The displacement pump is driven continuously by a motor to provide a series of fluid displacements which are accumulated in a hydrau... | 11/09/1993 |
| 5228291 | Motor with rotating mass induced vibration driving means A novel motor and method for converting rotary input motion to axial reciprocating motion of an output shaft in which input work and energy are transferred by creating unbalanced reaction forces with a motor driven unbalanced rotating mass as it acts on a... | 07/20/1993 |
| 5072588 | Motion multiplier for use with extendable boom fork lift vehicle This invention relates to a motion multiplier for use with an extendible boom forklift vehicle wherein a light-duty fork carriage is linked to the motion multiplier attached to a heavy-duty fork carriage to allow motion of the light-duty forks to translat... | 12/17/1991 |
| 5058385 | Pneumatic actuator with hydraulic control The present invention provides a pneumatically powered actuator having hydraulic control for both locking and controlling the velocity of an output rod without any sponginess. The invention includes a double-acting pneumatic actuator having a bore, a pist... | 10/22/1991 |
| 4785615 | Hydraulic shift for motor vehicle automatic transmission A hydraulic apparatus for remotely controlling the operative mode selector of a motor vehicle automatic transmission. The apparatus comprises a master cylinder having an input member operatively connected to the transmission operative mode selection or sh... | 11/22/1988 |
| 4768871 | Mirror for motor vehicles An adjustable rear view mirror, the mirror element of which is supported by a ball-and-socket-like joint, and can be adjusted by two elements that can be actuated by pressure medium. In order to use single-acting adjustment elements, a reset spring is ass... | 09/06/1988 |
| 4633726 | External hydraulic driving system for motorcycle brake, clutch and gear shift A hydraulic driving system for motorcycle gear shift includes a primary cylinder combination, a secondary cylinder and a set of delivery conduits for handling hydraulic fluid connected therebetween, in which two primary cylinders with different diameters ... | 01/06/1987 |
| 4309150 | Peristaltic motors A peristaltic motor is provided comprising a reciprocating slave piston adapted to be actuated by the progressive, sequential contraction of two aligned, resiliently deformable peristaltic tubes by a weighted roller such as a wheel of a heavy vehicle. The... | 01/05/1982 |
| 4305252 | Centering and cooling equipment for a hydraulic vibration generator Centering and cooling equipment for a hydraulic vibration generator, with a pulsation generator pressurizing a cylinder containing a movable piston, composed of a feed system and a flushing system. The feed system includes spring-loaded non-return valves ... | 12/15/1981 |
| 4122678 | Hydraulic control with feedback for powered machinery A three-cylinder hydraulic system providing position feedback for controlling powered machinery is described wherein an operator moves a control handle and the various working elements of the machinery respond to follow the path of the control handle, the... | 10/31/1978 |
| 4074531 | Oleodynamic servo control A load-controlling piston of the double-action type, dividing an associated cylinder into two compartments, is positionable by a hydraulic servomechanism comprising a block wherein a high-pressure supply port and a low-pressure discharge port communicate ... | 02/21/1978 |
| 4030560 | Hydraulic skid steering control system A control system for connecting a manually actuated lever to an arm of a fluid translating device that forms part of the drive transmission for a skid steer vehicle is disclosed herein. The connection between the lever and the arm is in the form of a hydr... | 06/21/1977 |
| 4006595 | Refrigerant-powered engine A system for powering a gas-sealed, flywheel-type turbine comprises a pair of pressurized storage tanks used alternately as a source and sink of Freon. A rotary valve, in a first position, directs liquid Freon from the first storage tank, functioning as a... | 02/08/1977 |
