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 |
| 7243672 | Flow control valve A spool bore (4) where a spool (6) slides, a concave portion (23) opened to the spool bore (4) and facing a return port 12 opened to the spool bore (4), and a land portion (11) disposed in an outer periphery of the sp... | 07/17/2007 |
| 7121813 | Reverse rotation preventing structure of centrifugal compressor The invention relates to a reverse rotation preventing structure of a centrifugal compressor. The reverse rotation preventing structure of the centrifugal compressor comprises: a discharge pipeline of the centrifugal compressor; a suction pipeline of the centrifugal... | 10/17/2006 |
| 6932102 | Device for regulating the flow rate and/or the pressure of a fluid The present invention relates to a device for regulating the flow rate and/or the pressure of a fluid transferred from a high-pressure reservoir (H) to a reservoir (S). A first valve (1) provided with a control (2) is mounted in a pipe (10, 11, 12 | 08/23/2005 |
| 6675823 | Relief valve A gap 11 between a flange 4A of a bail support member 4 and the inner circumferential surface of a sleeve member 7 functions as an orifice for restricting an oil flow downstream of a seat hole (6B). The movement of the ball support member 4 is stabilized,... | 01/13/2004 |
| 6328535 | Flow control valve capable of adjusting fluid flow characteristics in accordance with a position of a valve element in a bore A flow control valve has body (20) containing a "bucket" shaped valve element (1) that moves in a bore (2). The valve element (1) has a discharge orifice (8) through which a needle valve (9) projects. Movement of the valve element (1) within the bore (2) ... | 12/11/2001 |
| 5685332 | Valve assembly A valve assembly for controlling fluid flow to an actuator, including first and second throttles for controlling partial flows therethrough, which together form a full flow to the actuator and which function indepedently from each other and are formed eac... | 11/11/1997 |
| 5515879 | Load sensed multi-purpose pressure control valve A pressure control valve having a housing with a main inlet passage and a bypass outlet passage. A combined control is located in the housing to control the flow of fluid from the main inlet passage to the bypass outlet passage. The combined control inclu... | 05/14/1996 |
| 5497801 | Flow control valve A flow control valve having a bypass valve section that opens when a main valve section has approached a closed state has a bypass start point that can be easily varied and adjusted, even after installation of the flow control valve. Further, cavitation i... | 03/12/1996 |
| 5348040 | Fluidic valve mechanism A fluid flow sensitive valve mechanism, including a valve member and a valve positioning device, positioned in a valve chamber between first and second inlet-outlet ports controls opening and closing of a third inlet-outlet port in response to flow of flu... | 09/20/1994 |
| 5333638 | Automatic recirculation valve An automatic recirculation valve having an inlet, a main outlet, and a recirculation outlet. A main valve element responsive to the flow between the inlet and main outlet and a bypass element responsive to the main valve element regulates the fluid flow t... | 08/02/1994 |
| 4964433 | Rotary valve The improved rotary valve includes a body and a valving block having a valve interface with at least two work ports. A rotatable valve plate is received in the body and has a working face with a land which is in sliding contact with the valve interface. A... | 10/23/1990 |
| 4738330 | Hydraulic drive system for use with vehicle power steering pump A hydraulic drive system for use with a vehicle power steering pump has a hydraulic motor connected in series with a power steering mechanism and a bypass line extending in bypassing relationship with the motor. A bypass valve is disposed in the bypass li... | 04/19/1988 |
| 4669495 | Adjustable flow regulating valve A flow regulating cartridge assembly that can be adjusted from substantially zero flow to a predetermined maximum flow determined by the maximum size of a flow controlling orifice located within the valve assembly. The valve includes a spool slidably moun... | 06/02/1987 |
| 4420934 | Automotive vehicle hydraulic system A hydraulic system is disclosed for use in an automotive vehicle including an engine, a power steering gear, and a brake booster. The system includes a single engine driven pump in fluid communication with first and second fluid flow control means. The fi... | 12/20/1983 |
| 4392366 | Flow controller Apparatus for the application of liquids to moving material, such as patterned application of dyes to moving textile material, including a liquid applicator positioned above the material path of travel for continuously discharging liquid in a row of plura... | 07/12/1983 |
| 4346555 | Exhaust air flow proportioning valve A valve controlling the rate of air flow from a supply pump to an engine exhaust system directs the air flow to the exhaust system through an orifice in a diaphragm valve which is associated with a valve seat separating the air supply from an excess air d... | 08/31/1982 |
| 4243064 | Bypass valve for pumps, heating systems and the like A bypass valve with a tubular housing having an inlet at one end, a main outlet at the other end and a bypass outlet between the ends. A larger-diameter valving element controls the flow of fluid from the inlet to the main outlet, and a smaller-diameter v... | 01/06/1981 |
| 4171708 | Bypass and unloader valve A bypass and unloader valve capable of operation as a full unloader valve or volume control for fluid pressure systems. The structure utilizes a valve body having an inlet, an outlet, and a bypass, with check valve means being provided to accommodate norm... | 10/23/1979 |
| 4002027 | Multiple pump control system A control system for plural motor driven pumps is disclosed. The control system includes a control valve which provides for unloading one pump by diverting the flow of operating fluid from that pump back to reservoir whenever the flow through the valve or... | 01/11/1977 |
| 3998134 | Load responsive fluid control valves A load responsive direction and flow control valve for use in fluid power load responsive system. The valve maintains a selected constant flow level for control of both positive and negative loads, irrespective of the change in the load magnitude or chang... | 12/21/1976 |
| 3989414 | Pump for servo steering A motor vehicle servo steering system control for flow rate to the hydraulic steering cylinder mechanism utilizes a flow regulating bypass valve between the inlet and outlet of the system pump. A throttle bore device in the pump outlet is adjustable as to... | 11/02/1976 |
| 3987627 | Hydraulic governor A hydraulic governor valve coordinates the flow of crop material to a processing unit with the rate of processing of material therein. A gear driven pump is powered by the processing unit in direct relation therewith to drive a conveyor hydraulic motor. T... | 10/26/1976 |
