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Patent No. 6681419

Forehead support apparatusĀ 

A forehead support apparatus for resting a standing users forehead against a wall above a bathroom commode or urinal or beneath a showerhead.

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Class 137/625.21 - Rotary valve


Subclass of Class 137 - Fluid handling
Definition: Devices in which the valve unit rotates.
No. of patents: 226
Last issue date: 12/13/2011


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NumberTitleIssue Date
8074684Seat height control system
The present invention relates to a leveling valve including a first port, a second port, a third port, a valve, and a clutch. The clutch is provided with an engaged position and a disengaged position. At least a portion of the clutch may move relative to the valve w...
12/13/2011
7921876Rotary control valve and associated actuator control system
A rotary control valve and associated actuator control system. An actuator control system comprises a rotary control valve including a generally planar face seal, and an actuator operatively connected to the rotary control valve. Another actuator control system comp...
04/12/2011
7866344Rotary valve
A rotary valve for controlling air supply in an inflatable device comprises a first rotor (11) and the second rotor (12) driven by motor (13) with a drive pulley (14) fixed directly onto its drive spindle (15). A toothed belt (1...
01/11/2011
7775239Buffered rotary valve
There is provided a buffered rotary valve in which a valve is additionally installed in a rotary valve for supplying a fluid of high pressure and a fluid of low pressure being input from a compressor, thereby reducing the amount of fluid being supplied and unnecessa...
08/17/2010
7588051Rotary valve device
This invention relates to a rotary valve device for controlling and distributing flow of a fluid medium directly in response to the rotary motion of a motor shaft. Fluid medium is continuously supplied to a cavitated disk through a manifold by a pump source where th...
09/15/2009
7578313Rotary pilot valve
A rotary pilot valve in which a force required to operate the pilot valve is reduced and especially the pilot valve can be operated with a very small operating force as in a fingertip type, and the number of parts forming the pilot valve is reduced. In a body, a tan...
08/25/2009
7520298Rotary fluid flow valve
A rotary valve having inner and outer sleeves includes multiple ports configured to provide pressure and vacuum pulses when the sleeves are rotated with respect to each other. A source of pressure and vacuum is connected to the rotary valve, and the inner sleeve is ...
04/21/2009
7503344High pressure metering valve
A bi-directional metering valve assembly is provided to selectively direct hydraulic fluid under high pressure to a load. The assembly includes a valve block defining a first port that receives hydraulic fluid from a source, and a second port that directs hydraulic ...
03/17/2009
7287550Assembly consisting of a valve member and adjustment device for a vehicle servo-steering arrangement
An assembly consists of a valve shaft, a valve member and an adjusting device which can alter the angle alignment of the valve member relative to the valve shaft. ...
10/30/2007
7270132Washer
A washer includes a plurality of washing devices for spraying washing water to an object to be washed from various directions of a washing tub, and a washing water feeding device for feeding the washing water. The washing water is sequentially sprayed from respectiv...
09/18/2007
7231940Control valve for a hydraulic power steering system
A control valve for a hydraulic power steering system includes a pair of flow circuits arranged in parallel. Each flow circuit includes an upstream and downstream flow orifices arranged in series. Each set of orifices defines between the orifices an intermediate pre...
06/19/2007
7225488Air mattress control unit
The system of the present invention is a system for supplying air and controlling the flow of air into and out of the chambers of a patient supporting air mattress. It includes an electric motor powered variable speed blower, a two position rotary valve, air mattres...
06/05/2007
7222640Switching fluid flow by diversion
A flow of fluid is switched on and off by diverting the flow to an alternative path. In a preferred application an abrasive cutting jet, formed by a flow of abrasive slurry fed via a conduit to a cutting jet nozzle, is switched on and off by diverting the flow at a ...
05/29/2007
7222693Hydraulic control valve and power steering apparatus using the same
The present invention provides a hydraulic control valve and a power steering apparatus using the same in which chamfer portions are provided only on throttle portions between oil supply chambers and first oil feed chambers and between the oil supply chambers and se...
05/29/2007
7204478Height control valve with universal mounting for a suspension system
A height control valve for use in a vehicle suspension system for controlling the ride height of the trailer, the height control valve provided with a universal mounting for allowing greater flexibility in the mounting of the height control valve to a vehicle frame,...
04/17/2007
7192033Trailing arm suspension and height control system with motorized valve therefor
A trailing arm suspension for a vehicle. The trailing arm suspension having a height control system for controlling the ride height of the suspension relative to the vehicle. The height control system preferably comprises a motor driven height control valve. ...
03/20/2007
7175612Suction limiting device with variable control
A suction limiting device with variable control for use in a surgical system includes a main vent body having a fluid carrying bore extending therethrough and a variable vent mechanism having a main vent opening in selective fluid communication with the fluid carryi...
02/13/2007
7172572Manifold system for a medical device
A number of devices are illustrated for providing a manifold that can simply and selectively couple a number of different therapeutic and diagnostic elements to a catheter or other medical device. Some examples include devices having sliding actuators, rotary actuat...
02/06/2007
7152627Control valve for a hydraulic power steering system
A control valve for a hydraulic power steering system includes a pair of flow circuits arranged in parallel. Each flow circuit includes an upstream and downstream flow orifices arranged in series. Each set of orifices defines between the orifices an intermediate pre...
12/26/2006
7134644Compressed air balancer
The invention concerns a compressed air balancer (1) for raising, holding and lowering a load, comprising a cable drum (4) which is rotatable and displaceable along its axis of rotation for rolling up and unrolling a cable holding the load, a housing w...
11/14/2006
7121247Spherical rotary engine valve assembly
A spherical rotary engine valve assembly for use in an internal combustion engine. ...
10/17/2006
7100638Valve for a hydraulic power steering
In a valve for a hydraulic power steering, comprising a first valve element and a second valve element which from a central position can be rotatably displaced relative to each other to a limited extent in the one or other direction in order to generate a steering a...
09/05/2006
7089960Ball valve
The present invention is a ball valve which may be attached to a fluid pipe for connection/disconnection between an entrance and an exit. More particularly, the present invention is a ball valve having a discharge orifice communicating with ambient air in addition t...
08/15/2006
7036171Air mattress control unit
The system of the present invention is a system for supplying air and controlling the flow of air into and out of the chambers of a patient supporting air mattress. It includes an electric motor powered variable speed blower, a two position rotary valve, air mattres...
05/02/2006
7028705High torque failsafe valve operator
A fluid valve operator for moving a moveable valve element such as a disc (14) that is pressed forcefully against a surface of a valve frame (12). The valve operator includes first and second electric gear reduction motors (22, 24) that each has...
04/18/2006
7028996Vehicle suspension system and height control valve therefor
A height control valve for controlling the relative height between a vehicle frame and a trailing arm suspension. The height control valve comprises a housing defining an interior chamber and having an inlet port fluidly connecting to a source of pressurized air. An...
04/18/2006
6976504Selectable detent relief valve
A selectable detent relief valve of this invention is used to operate a hydraulic detent mechanism on a manually operated spool valve. This design has three modes of operation, no-detent, continuous detent and kick-out detent. The no-detent position allows flow to p...
12/20/2005
6976974Rotary manifold syringe
A fluid control apparatus is disclosed for controlling fluid flow between a catheter, an injector, a saline supply, a waste dump and a contrast supply. The apparatus includes a valve stem movable within a cavity disposed in a valve body. The valve stem is movable to...
12/20/2005
6971408Power steering system for motor vehicles
A power steering system for motor vehicles, fitted with a rotary disk valve and comprising a reaction piston (1) defining an active (2) and a passive reaction chamber (3). A servo pressure can be fed to the reaction chamber (2) in order t...
12/06/2005
6962323Apparatus comprising a rotary-acting pilot valve
A rotary-acting valve is disclosed. In some embodiments, the rotary-acting valve is the pilot or first stage of a two-stage control valve and can be used to create an improved propulsion system for a missile. In the illustrative embodiment, the rotary-acting pilot v...
11/08/2005
6945275Airbag valve with adjustable dead band
A vehicle leveling valve for flowing pressured air to an airbag when its height falls below a predetermined height at the bottom of a height range, and for flowing air out of the airbag when its height rises above the top of the height range, which enables easy adju...
09/20/2005
6832630Adjustable air supply valve of air cushion bed
An adjustable air supply valve of an air cushion bed is disclosed, the air supply valve has an air supply valve installed between a first tube and a second tube. The air supply valve comprises a round seat, an air valve, a cover plate, a locking plate and a driving ...
12/21/2004
6832629Rapid inflation and venting air valve of airbed
A rapid inflation and venting air valve of an airbed comprises at least one air inlet, a lower opening, cover openings, and, joint tubes; and a blower having a wind suction opening and a wind transfer tube. When the wind transfer tube is communicated with the air in...
12/21/2004
6763851Rotary shift valve for servo-assisted steering systems of motor vehicles
A rotary slide valve for power-assisted steering systems of motor vehicles includes a rotary slide which is connected fixedly in terms of rotation to a valve input member. The control bush is connected fixedly in terms of rotation to a valve output member. The two v...
07/20/2004
6739848Hydraulic motor with disc valve commutating slots complimentary in shape to port plate ports
A hydraulic motor of the disc valve type has a disc valve with a plurality of commutation slots that can sequentially register with ports in a port plate as the disc valve is rotated with respect to the port plate. The commutation slots have a geometrical configurat...
05/25/2004
6725881Multi-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...
04/27/2004
6708691Valve and oscillator for producing a pressure waveform
A valve for controlling gas flow to ventilator or physiotherapy apparatus, has a body having first and second inlet ports and an outlet port. A shutter plate is rotatable with respect to said body and adapted selectively to interconnect said inlet ports to said outl...
03/23/2004
6698046Air mattress control unit
The system of the present invention is a system for supplying air and controlling the flow of air into and out of the chambers of a patient supporting air mattress. It includes an electric motor powered variable speed blower, a two position rotary valve, ...
03/02/2004
6640357Back-to-back faucet valve structures
A water faucet structure includes a first valve seat mounted in one side of a wall, a first ceramic control valve fastened to the first valve seat, a second valve seat mounted in other side of the wall in a back-to-back manner in relation to the first val...
11/04/2003
6625824Automatically controlled system for maintaining a swimming pool
The electronically controlled system of the present invention includes a regulator for regulating the flow of water through selected conduits of a filtration system associated with the swimming pool. The regulator includes a rotatable selector (32) arrang...
09/30/2003
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