Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 7131459 | Multi-port fluid valve and method A multi-port valve is disclosed having a ball bearing support system for a stator/rotor/valve stem assembly within a valve housing. Slipper seals or alternatively, poppet seals, connect a plurality of apertures situated in the rotor and a plurality of apertures situ... | 11/07/2006 |
| 7036335 | Pneumatically actuated multi-way valve and refrigerating machine with multi-way valve A multi-way valve, in particular for use in the refrigerant circuit of a refrigeration unit, includes a housing with several inlets and outlets and a chamber with several seats that are respectively allocated to one inlet or outlet. A closing member is allocated to ... | 05/02/2006 |
| 6975061 | Apparatus for moving a pair of opposing surfaces in response to an electrical activation An apparatus for moving a pair of opposing surfaces in response to an electrical activation having a support including a rigid non-flexing portion, at least one pivotable arm portion extending from the rigid non-flexing portion, a pair of opposing surfaces with one ... | 12/13/2005 |
| 6924586 | Uni-body piezoelectric motor An apparatus according to the present invention includes a support structure having a primary portion with first and second arm portions formed thereon for movement relative to one another, and a secondary portion with either a clamp portion or valve portion integra... | 08/02/2005 |
| 6843270 | Connector of inflating device capable of coupling various types of valve stems A connector of an inflating device has a housing having a central chamber and three side chambers. Three connector assemblies are mounted in the side chambers respectively to be coupled with various types of valve stems. Each of the connector assemblies have a valve... | 01/18/2005 |
| 6732760 | Fluid distributor valve outlet opening and closing device This device comprises a body (2) having outlets (8), and a bonnet (3) housing a rotor (6) being submitted to the action of the inflowing fluid and being connected to a reducing gear (15) activating the closing device. This device i... | 05/11/2004 |
| 6539967 | Distribution valve and method A distribution valve includes a fluid inlet port and a plurality of fluid outlet ports, wherein the distribution valve includes a housing including a fluid inlet (3). The housing includes an upper section (15B) and a lower section (15B). A gear reduction ... | 04/01/2003 |
| 6386232 | Fluid distributor valve A fluid distributor valve including a chamber formed by a body and bonnet and having an intermediary plate through which a central shaft extends, a rotor being fitted around said central shaft and being submitted to the action of the fluid flowing into sa... | 05/14/2002 |
| 6360767 | Fluid distribution valve The base of a fluid distribution valve is configured to allow a cluster of outlet pipe sockets to extend beyond the outer diameter of the base of the valve to accommodate larger diameter pipes.... | 03/26/2002 |
| 6352105 | Servocontrolled valve for air-conditioning systems known as four pipe systems Servocontrolled valve for regulating air-conditioning apparatuses with fan-convectors, inductors and the like, with water distribution by means of the so-called "four pipe system", comprising a stationary ceramic collector disk (1), a movable ceramic dist... | 03/05/2002 |
| 6325087 | Distribution valve and method A distribution valve includes a fluid inlet port and a plurality of fluid outlet ports, wherein the distribution valve includes a housing including a fluid inlet (3). The housing includes an upper section (15B) and a lower section (15B). A gear reduction ... | 12/04/2001 |
| 6314999 | Fluid distribution valve Alignment arrangement between a valve module and a base containing outlet chambers assures that the valves in the valve module are correctly positioned relative to the chambers. A plurality of posts between a valve actuating assembly in the module and a s... | 11/13/2001 |
| 6311728 | Fluid distribution valve A multiple outlet valve includes a valve actuating mechanism driven by a turbine. Fluid entering the valve passes through a flow control member which determines the velocity of the fluid entering the turbine and thereby controls the frequency with which t... | 11/06/2001 |
| 6241015 | Apparatus for remote control of wellbore fluid flow An apparatus for remotely controlling fluids in a well is provided. The flow control apparatus may include a body member having a flow port in an outer wall of the body member, and a flow aperture spaced inwardly from the outer wall. A remotely shiftable ... | 06/05/2001 |
| 6126089 | Cleaning lance A cleaning lance provided in which water from an inlet is directed either to an upper, rinsing barrel or to a lower, foamer barrel. The latter is provided with a mixing chamber having an inlet for detergent supplied via a flow control valve. A water jet i... | 10/03/2000 |
| 5927318 | Automated pipe connection apparatus Disclosed is an automated pipe connection apparatus having an automated connection apparatus main body (1) capable of performing automated change-over between a group of pipelines and another group of pipelines, a washing/sterilizing utility block (2), an... | 07/27/1999 |
| 5623965 | Low effort vacuum valve assembly with rotary actuator A rubber valve plate is sandwiched between a stator and a cover. Ports in the stator for coupling to a vacuum source and vacuum motors are aligned with poppets molded in the valve plate. A manifold in the plate joins regions surrounding the valves to coup... | 04/29/1997 |
| 5492035 | Fluid manifold for center column machine A center column machine assembly having a hydraulic manifold formed by a one-piece outer ring attached to the stationary part of the center column and a one-piece inner ring which is indexed with the work table. The two rings have overlapping surfaces def... | 02/20/1996 |
| 5487346 | Soil injection system A fluid injecting system for injecting fluid into soil is disclosed, the system comprising a tank for receiving and from which is discharged the fluid, mixing apparatus in the tank for mixing the fluid, a transfer pump in fluid communication with the mixi... | 01/30/1996 |
| 5307838 | Rotary valve assembly A rotary valve assembly is disclosed in which a rotary valve member is located within a casing having one or more fluid inlets and a plurality of fluid outlets. The rotary valve member has a fluid conduit which extends in a generally radial direction and ... | 05/03/1994 |
| 5135168 | Multi-sprinkler controller A multi-sprinkler controller includes a timer-activated motor which drives a rotor disc. The rotor disc operates the opening and closing of several water passages through which water is supplied to the various sprinklers which make up a sprinkler system.... | 08/04/1992 |
| 5083590 | Three-way valve The three-way valve has a chamber in the body which is adapted to provide a connection from an outlet passage to both inlet passages. One inlet passage is closed by a valve lid which bears on a valve seat and which functions as an automatic outlet valve w... | 01/28/1992 |
| 5082022 | Multiple outlet water timer A multiple outlet water timer having an inlet and a plurality of outlets each having its respective control valve. The timer is operated by a clockwork mechanism with a cam on the clockwork mechanism case, a cam follower for each valve and each cam follow... | 01/21/1992 |
| 5081903 | Multiplexed hydraulic control system with multi-bit binary selector signal control A multiplexed hydraulic control system having a plurality of hydraulic channels for individually controlling the positions of a plurality of actuators in the respective channels in accordance with a corresponding plurality of electrical control signals. T... | 01/21/1992 |
| 5069883 | Device for continuous contacting of liquids and solids A liquid-solid contacting device having a plurality of chambers communicating with a cylindrical valve. The valve is situated in the central axis of the device and provides distribution and collection of a liquid to and from each of the plurality of chamb... | 12/03/1991 |
| 5038827 | Shuttle valve for a refrigeration system A shuttle valve (10) for use in a dual refrigerator system (100) and operated by controlled refrigerant pressure lines (120, 122) to provide that either one or both of two evaporators (104, 106) are active. The valve (10) includes piston chambers (30) at ... | 08/13/1991 |
| 5000013 | Air sequencer for a knitting machine A valve for distributing pressure air to remove lint from a knitting machine at locations where it typically accumulates, in which plural balls are normally seated in valve openings to close the flow passages to these locations and are unseated therefrom ... | 03/19/1991 |
| 4984738 | Unit injector for staged injection A unit injector for staged injection of fuel in an internal combustion engine is disclosed. The unit injector comprises a fuel pump and a spray nozzle combined in a single unit adapted to be mounted on the engine with the fuel pump adapted to be driven by... | 01/15/1991 |
| 4826356 | Pressure actuated flow control valve A pressure actuated flow control valve for use in conjunction with inflatable packers and grouting systems on offshore oil platforms. The valve includes an elongated body with a plurality of pistons slidably disposed in the body between first and second p... | 05/02/1989 |
| 4817656 | Multi-port distribution valve with gear driven rotary distribution cylinders A fluid distribution apparatus includes an impeller-driven gear reduction mechanism and a plurality of outlet valves controlled in response to the gear reduction mechanism. Each valve includes a hollow stationary cylinder with an open top and an open bott... | 04/04/1989 |
| 4784325 | Rotating stream sprinkler A rotating stream sprinkler is provided with an improved spray head for sweeping one or more outwardly projected water streams through a prescribed arcuate spray path, wherein the spray head is adapted for enhanced self-flushing operation to prevent accum... | 11/15/1988 |
| 4592379 | Fluid distribution valve A fluid distributing valve has the supply opening or conduit and the outlet openings or conduits disposed on the same side of the valve and oriented in the same direction. Accordingly the need for having couplings or unions to connect the supply pipe to t... | 06/03/1986 |
| 4570663 | Distribution valve with dual cams to prevent uncontrolled excursions of valve balls A distribution valve includes a housing having an upper fluid inlet, a plurality of bottom fluid outlets and enclosing a rotary impeller disposed directly beneath the fluid inlet, and a plurality of stationary baffles disposed between a bottom plate of th... | 02/18/1986 |
| 4523606 | Distribution valve A distribution valve includes a housing having an upper fluid inlet, a plurality of bottom fluid outlets, and enclosing a plurality of bottom fluid outlets, and enclosing a rotary impeller disposed directly beneath the fluid inlet, a plurality of stationa... | 06/18/1985 |
| 4313455 | Fluid routing device A fluid routing device has a sealed self-contained body which includes all of the working parts of such a device is combined with a base plate having discharge ports which register with outlets in the sealed body which are controlled by valves within that... | 02/02/1982 |
| 4310021 | Control valve A control valve for irrigation and other purposes comprising an actuator mounted for rotation along a path, a motor for moving the actuator along the path, and first and second pilot valves located at first and second stations, respectively, along the pat... | 01/12/1982 |
| 4290442 | Mobile cleaning unit A mobile cleaning unit for providing a high pressure cleaning spray, comprising a van-type vehicle with separate sources of water and cleaning and treating solutions. Valves, one associated with each source, determine the composition of the cleaning spray... | 09/22/1981 |
| 4195665 | Fluid valve The fluid valve essentially comprises a support structure designed rotatably to support an inlet within a certain oscillatory ambit and stationarily supporting a plurality of outlets within the oscillatory ambit, and operative means for effecting fluid-ti... | 04/01/1980 |
