Celebrity Inventors
Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 7686036 | Valve apparatus for movable oxygen cylinder The valve apparatus includes: a valve body whose one side is combined with the movable oxygen cylinder, which communicates with a discharge port at the other side thereof along a path from one side thereof lengthily therein, to thus discharge out the oxygen of the o... | 03/30/2010 |
| 7543603 | Three-way, two-position in-tube solenoid gas valve assembly A tube defines a cavity. Normally-open fitting (2) and normally-closed fitting (3) are respectively fitted into the tube to form ports (34),(35) having seats (40),(13). A body secured to fitting (3) defines a chamber ... | 06/09/2009 |
| 7357152 | Releasable non-return valve The invention relates to a releasable non-return valve, in which a connection between a working chamber and a connector chamber may be closed by a non-return piston and opened by the opening movement of a release piston which may be pressurized with a release pressu... | 04/15/2008 |
| 7353744 | Hydraulic control The invention concerns a hydraulic control (1) with a supply connection arrangement (7) having a high-pressure connection (P) and a low-pressure connection (T), a working connection arrangement having two working connections (A, B) connectable with a c... | 04/08/2008 |
| 7337807 | Hydraulic control valve with regeneration function The present invention A hydraulic control valve with a regeneration function, including a main body formed of a supply fluid passage to which pressurized fluid is supplied, at least one port, a tank fluid passage for discharging the pressurized fluid to an outside s... | 03/04/2008 |
| 7322376 | Piezoelectric valve A piezoelectric valve has a flexural transducer accommodated in a valve housing and having a free ending cantilever operational section able to be deflected by electrical control. The operational section extends over two controlled valve openings lying on the same s... | 01/29/2008 |
| 7308909 | High pressure three way valve A solenoid operated valve includes a fluid inlet and a fluid inlet, a common port, a normally open port and a normally closed port combined on an end cap. The valve further includes a coil housing that houses two coils, a first coil and second coil, that are in para... | 12/18/2007 |
| 7284566 | Valve arrangement for guiding a liquid against a gas pressure gradient Valve arrangement for guiding a liquid against a gas pressure gradient. The valve arrangement includes first, second and third pressure areas connected in series. An intake opens into the first pressure area. An outlet opens into the third pressure area. Flow check ... | 10/23/2007 |
| 7219591 | Hydraulic control arrangement What is disclosed is a hydraulic control arrangement for controlling a hydraulic consumer, comprising an adjustable supply measuring orifice and an adjustable drain measuring orifice as well as a pressure compensator arranged in a pressure medium delivery. The contr... | 05/22/2007 |
| 7150291 | Fluid attachment for the activation and deactivation of fluid driven dynamic devices Apparatus comprising a normally closed valve element that can be mounted on a mobile part and fluid distributor means that can be mounted on a stationary part and is operatively connectable with said valve element. ... | 12/19/2006 |
| 7150450 | Vehicle suspension damper with integral height leveling valve An air spring suspension damper assembly includes a first housing and a second housing which telescope relative to each other. An actuating member such as a cable is connected to a height leveling valve contained in one of the housings and attached to the other hous... | 12/19/2006 |
| 7131368 | Variable regeneration valve of heavy equipment Disclosed is a variable regeneration valve of a heavy equipment in which hunting due to repeated motion of a spool does not occur in a regeneration valve that supplies a return flow of an actuator to a supply port during single operation of the actuator or its compo... | 11/07/2006 |
| 7080663 | Valve assembly A valve assembly for load pressure-independent control of consumers is disclosed, which includes a main valve having a directional element and a metering throttle part. The valve assembly includes a shut-off valve for leakage-free shutting off of a work line leading... | 07/25/2006 |
| 7073735 | Boom breakaway system Foldable boom inner wings are attached to a boom center frame through a rocker attached to a breakaway hydraulic cylinder pressurized to full stroke and connected to an accumulator. When a wing impacts an object, the impact load is transmitted through the fold cylin... | 07/11/2006 |
| 7028710 | Hydraulic valve system A hydraulic valve system (1) has a supply connection arrangement, having a high-pressure connection (P) and a low-pressure connection, with a working connection arrangement, having two working connections (A, B), with a control valve (3), which is arra... | 04/18/2006 |
| 7021332 | Hydraulic valve section with reduced bore distortion A spool valve section for a multiple valve assembly has a body with two opposing side surfaces. A plurality of mating surfaces are raised from each side surface. The mating surfaces surround the openings of fluid passages through the section and apertures for fasten... | 04/04/2006 |
| 6997210 | Valve arrangement including release valve A valve arrangement including a release valve. The valve arrangement controls a cylinder assembly including a first port and a second port, and a cylinder slideably housing a piston for movement between an extended position and a retracted position. The valve arrang... | 02/14/2006 |
| 6994112 | Control unit for inflatable devices The present invention is a control unit which controls the supply of compressed air to a plurality of inflatable devices for inflating them and for venting air from them in order to deflate them. The unit has valves which are operated by finger operable devices. The... | 02/07/2006 |
| 6971725 | Dampened vehicle emergency brake valve A valve for controlling an emergency brake system on an aircraft. The valve has separate poppets for controlling the flow of fluid from a supply line to the brake cylinders and from the brake cylinders to a tank return line. The poppets act on each other. A dampenin... | 12/06/2005 |
| 6969284 | Connector arrangement for compact servomotor A plug connector device (11, FIG. 2) for medium voltage (e.g. 220 volts) compact servomotors has a power plug unit (16) and a control signal plug unit (17), each with connectable/disconnectable outer and inner plugs (49,48 and 5... | 11/29/2005 |
| 6964281 | Multiple hydraulic spool valve assembly with a monolithic body An assembly of a plurality of hydraulic control valves is housed in a single-piece body. For each control valve, a spool bore and an aperture for a pressure compensation valve are provided in the monolithic body. Each spool bore is connected to several return passag... | 11/15/2005 |
| 6935613 | Compact integrated flanged isolator ball valve The present invention provides a flanged ball valve device which can be connected, as an integrated compact unit, to a pump at the valve flange end of the device by means of an integral flange and to various types of piping systems at the pipe end of the device by m... | 08/30/2005 |
| 6932788 | Suction device with irrigation A suction device with an irrigation function exhibits reduced occurrence of jamming and can be easily manipulated. A flexible tube 21 is removably connected to a flexible tube connection 22 of a suction device body 20. A suction path 25 i... | 08/23/2005 |
| 6918902 | Irrigation and suction valve and method therefor The in-line hand operated valve controls the flow of at least the irrigation fluid or suction to a surgical site. First and second sources provide fluid and suction to the valve. Valve body source ports communicate with the source lines and a delivery port communica... | 07/19/2005 |
| 6904938 | Locking block There is disclosed a stop block for controlling a hydraulic consumer in which a main piston having an advanced opening can be lifted off a valve seat in a return function by means of a push piston. A pressure chamber confined by the main piston on the one hand and b... | 06/14/2005 |
| 6868772 | Fluid control valve A control valve is provided which may be incorporated within a fluid operating system. The valve has an internally-mounted check element which allows the valve to provide a fail-safe mode for a downstream device in fluid communication with the control valve. The inv... | 03/22/2005 |
| 6848473 | Low leak boom control check valve including an insert An insert or cartridge that fits into a cavity in a valve body provides a check valve function and an anti-cavitation function and a pressure relief function. This insert is substantially circular and has an internal cavity with a valve assembly that has two pairs o... | 02/01/2005 |
| 6840279 | Pneumatic switching valve for systems for lifting and lowering the body of vehicles including air suspension A pneumatic switching valve (1) for systems for lifting and lowering the body of a vehicle including air suspension includes a mechanical actuation element (33) for adjusting a lifting position, a lowering position, a driving position and a stop positi... | 01/11/2005 |
| 6805161 | Hydraulic valve system A hydraulic valve system (1) has a supply connection arrangement, having a high-pressure connection (P) and a low-pressure connection (T), a working connection arrangement, having two working connections (A, B), which can be connected with a hydraulic motor (... | 10/19/2004 |
| 6779542 | Low leak boom control check valve An insert or cartridge that fits into a cavity in a valve body provides a check valve function and an anti-cavitation function and a pressure relief function. This insert is substantially circular and has an internal cavity with a valve assembly that has two pairs o... | 08/24/2004 |
| 6776240 | Downhole valve A valve for downhole well service, having a rotary indexer carrying an elastically-loaded valve element on a valve seat surface in a flow passage, the valve element adapted to obstruct one or more flow passages in the valve seat surface when aligned therewith. The v... | 08/17/2004 |
| 6637462 | Variable pressure control device A control valve system having a housing defining an inlet, an outlet, and an exhaust. A first passage extends between the inlet and the outlet and a second passage extends between the outlet and the exhaust. The control valve system includes a first valve... | 10/28/2003 |
| 6581634 | Solenoid control valve with particle gettering magnet Engine oil solenoid control valve having a solenoid coil, a solenoid armature movable by energization of a solenoid coil, a check valve communicated to a fluid exhaust port of the control valve, a fluid control valve movable relative to a fluid control po... | 06/24/2003 |
| 6581639 | Low leak boom control check valve An insert or cartridge that fits into a cavity in a valve body provides a check valve function and an anti-cavitation function and a pressure relief function. This insert is substantially circular and has an internal cavity with a valve assembly that has ... | 06/24/2003 |
| 6578819 | Hydraulic valve An improved hydraulic valve for a camera dolly includes a valve pin having an extension within a valve housing to reduce vibration and noise and to reduce hydraulic closing forces. The valve pin is resiliently supported by e.g., rubber o-rings at both end... | 06/17/2003 |
| 6523453 | Hydraulic control valve for agricultural implements A hydraulic valve having a main body in which is formed a pressurized-fluid inlet opening; a first conduit communicating hydraulically with a user device; a second conduit communicating hydraulically with the user device, and at least one spool for regula... | 02/25/2003 |
| 6499505 | Hydraulic valve arrangement A hydraulic valve arrangement includes a control valve (3), which, in a first operating position (5), connects a motor connection (21) with a pump connection, in a second operating position (6), connects a motor connection with a tank connection, and, in ... | 12/31/2002 |
| 6477937 | Valve arrangement including release valve A valve arrangement including a release valve. The valve arrangement controls a piston of a cylinder assembly upon interruption of a source of fluid pressure supplied to the cylinder assembly, the cylinder assembly including a first port and a second port... | 11/12/2002 |
| 6470912 | Dual-spool hydraulic directional valve A dual-spool hydraulic directional valve for controlling the motion of a hydraulic cylinder or similar device. The dual-spool hydraulic directional valve of the present invention is less costly to manufacture, may be more easily repaired, and is more resi... | 10/29/2002 |
| 6439264 | Valve assembly A valve assembly for a patient support having a mattress including a bladder comprises an interior housing formed to include a supply chamber, an exhaust chamber, a plenum, and an exterior housing surrounding the interior housing. A supply valve and an ex... | 08/27/2002 |
