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Parker-Hannifin Corporation Patents
Assignee:
Parker-Hannifin Corporation
Address:
Cleveland, OH
No. of patents:
674
Patents:


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Patent Number Title Of Patent Date Issued
RE31121 Control device for prosthetic urinary sphincter cuff January 11, 1983
A device for controlling flow of fluid to and from a resilient inflatable cuff implanted about the urethra to control flow of urine therethrough. The device comprises a flexible bulb reservoir and a control unit that includes a manually operated valve that opens automatically when the bu
D577795 Hose fitting having a non-crimped hex shell mounted on a formed tube September 30, 2008
D567898 Filter element April 29, 2008
D548307 Filter element August 7, 2007
D537502 Filter element February 27, 2007
D529126 Filter end cap September 26, 2006
D497972 Filter element November 2, 2004
D497089 Portable crimping device October 12, 2004
D495938 One-piece crimper housing September 14, 2004
D441422 Filter element May 1, 2001
D357199 Housing for an electronic sampling and measuring device April 11, 1995
D304710 Rear view mirror or similar article November 21, 1989
D302001 Rear view mirror or similar article July 4, 1989
D280201 Hose assembly crimping machine August 20, 1985
D277731 Windshield washer pump package February 26, 1985
D270437 Rear view mirror September 6, 1983
D268665 Motorized truck mirror April 19, 1983
D268664 Motorized rear view mirror April 19, 1983
D268576 Rear view mirror mounting April 12, 1983
D268575 Rear view mirror April 12, 1983
7451989 Seal November 18, 2008
A seal has first and second spring elements each having first and second surfaces along a bellows cross-section and extending between first and second edges. A spreader is secured to an endplate between the first edges of the first and second elements to capture first edge portions of
7451790 Device for controlling hydraulic power units November 18, 2008
An arrangement for controlling two drive units which interact with one another, one of which includes a hydraulically driven motor (2). The motor drives a varying load, and one or more valves (6, 7) control hydraulic fluid flow through the motor during operation and for starting and
7446265 Board level shielding module November 4, 2008
An apparatus for providing board level shielding of Electromagnetic Interference in a printed circuit board is disclosed. The apparatus includes a plastic part, a metal conformal coating and a form-in-place Electromagnetic Interference gasket. The plastic part is configured in one or
7438812 Filter element and method of making October 21, 2008
A filter element (10) is provided which can be used to remove microsize contaminant particles (i.e., about 0.5 .mu.m to about 25.0 .mu.m) from aviation fuel. The filter element (10) includes a cylindrical pleated filter media (14) and an exoskeleton support structure (16) supporting
7431635 Internal gear grinding method October 7, 2008
In a method for successively generating, on the inner peripheral surface of a ring, the individual profiles of a plurality of teeth of an internally toothed gear wheel: positioning the ring on a turntable; imparting complex motions, at a predetermined speed relationship therebetween,
7430860 Hydrostatic transmission circuit October 7, 2008
Improvement in a hydrostatic valve assembly for use in a hydrostatic transmission, for controlling fluid transfer between a first, second and third line, wherein two of the lines define first and second pressure lines within a closed loop circuit. The valve assembly comprises a valve
7430851 Air and fuel venting device for fuel injector nozzle tip October 7, 2008
In a fuel injector assembly, for an internal combustion engine such as a gas turbine engine, a generally cylindrical air transfer sleeve is, in one embodiment, juxtaposed around a shroud, the sleeve having a peripheral inner recessed cavity, the outer end thereof encompassing a plura
7410132 Jam tolerant electromechanical actuation systems and methods of operation August 12, 2008
In a vehicle, having a fixed supporting structure and a load movable relative thereto, a jam tolerant actuating system, a method for controlling this system including: Locating a physical coupling/decoupling mechanism between the load and an actuator assembly as close a practicable t
7404538 Dual restrictor shut-off valve July 29, 2008
A shut-off valve for pressurized fluids in an air cooling/heating apparatus having a first duct receiving a first restrictor and a second restrictor. Both restrictors are coaxially formed with a capillary through which the pressurized fluid passes and which causes the rapid expansion
7401404 Retainer gasket construction July 22, 2008
Sealing gasket construction for providing a fluid seal intermediate a pair of opposed, mating parts or structures. The gasket includes a metal retainer and a resilient seal element received in a groove formed into the retainer. Such groove is adapted to be fabricated by coining or a
7395936 Filter element with vent orifice and assembly therefore July 8, 2008
A filter element and assembly for fluid applications which require a purging of air, and particularly for applications where the filter element is horizontally oriented (side loaded), where the filter element is rotationally positioned relative to the housing such that a vent orifice
7392823 Combination valve July 1, 2008
Improvement in a combination valve including check valve and pressure relief valve portions for regulating fluid flow pressure and direction in a hydraulic circuit, wherein a valve seat includes, in addition to a central aperture, a plurality of peripherally-spaced axial cross-port o
7387659 Pneumatically operated automatic shutoff circuit for controlling the generation of gas June 17, 2008
An automatic shut off circuit for controlling the flow of a gas through a gas separation system is disclosed. The gas separation system includes a gas separation module for separating nitrogen from air, and a non-electric automatic shut off circuit for controlling the delivery of air
7375291 Strip gaskets for EMI shielding May 20, 2008
A strip gasket utilizing a low closure force on an enclosing face for shielding electromagnetic interference is disclosed. The strip gasket includes an outer surface and an inner surface. The inner surface provides a hollow cross section region. Bending moments are created on surface
7374601 Air separation system and method with modulated warning flow May 20, 2008
An inerting system and method characterized by a primary air separation module configured to communicate with an upstream source of pressurized air at elevated temperature for production of a primary downstream flow of nitrogen-enriched air to be delivered to a space to be inerted; a
7374217 Two way non leaking flow valve with full-open capability May 20, 2008
A check valve for pick-and-place applications includes a valve housing with a chamber, and a chamber shuttle with a cavity. The chamber shuttle is accessible from outside the chamber and adapted to receive a suction head. The chamber shuttle is adapted to travel within the chamber and
7370673 Self-contained isolated port May 13, 2008
A service valve for a refrigerant system comprising a valve body and a system port. The valve body has at least one fluid passage integrated therein including a longitudinal bore. An orifice is located at one end of the bore. An annular protrusion axially extends from the valve body
7368856 Apparatus and process for optimizing work from a smart material actuator product May 6, 2008
An apparatus and process for pre-loading an electrically stimulated smart material actuator product to obtain maximum work from the actuator. When a smart material actuator is optimally pre-loaded certain desirable characteristics become apparent, such as work, operational frequency,
7363940 Flow-rate restrictor insert for orifice expansion device April 29, 2008
A generally cylindrical restrictor insert for containing an axially movable, apertured restrictive member, housed in a flow control distributor housing of an orifice expansion device used for bi-directionally-flowing pressurized fluid, with a housing passageway being closed off via a
7360357 Hydraulic steering system with input horsepower limiting circuit and increased fan speeds at low April 22, 2008
A hydraulic system that provides hydraulic fluid to a power steering system of a vehicle at a substantially constant flow rate and can also divert excess hydraulic fluid to the air cooling fan of an associated vehicle at low engine speeds is disclosed. The resulting hydraulic system
7360304 Folding stand for a portable crimping device April 22, 2008
A folding stand adapted to be secured to the bottom wall of a portable crimping device which, in a folded position, is substantially flat against a wall portion thereof and, in an unfolded position, vertically raises the crimping device to a predetermined working height, the folding
7357424 Plastic guard for airbrake tubing and coils April 15, 2008
A moldable plastic guard for use in a protective guard for a conduit such as a hoses, tubing, wire, cable, and fiber optics. The guard is receivable over the surface of the conduit and is attached to a nut. The nut may be used to join the end of the conduit to a fitting or other conn
7326862 Combination metal and plastic EMI shield February 5, 2008
An EMI shield having at least one compartment for enclosing circuitry of an electronic device. The shield includes a first member formed of a thin metal sheet, and a second member formed of an electrically-conductive composite material comprising an admixture of a plastic or other po
7325477 Device for reducing energy losses in a machinery unit February 5, 2008
The present invention relates to a device for reducing energy losses in a machinery unit (1), having at least one part (4) which is arranged to rotate in fluid about a rotation axis (6) in a substantially closed chamber (3) delimited in the radially outward direction by means of a wa
7317266 Anti-cogging method and apparatus for a linear motor January 8, 2008
The present invention provides a method for reducing cogging in a linear motor and for mounting sensors to determine motion of the motor.
7311748 Air filter assembly system and method December 25, 2007
An air filter assembly including abutting, cylindrical housing halves, with toothed outer ends, joined via spaced, T-shaped appendages; a cylindrical air inlet of abutting semi-cylindrical housing inlet portions; a primary filter pack, for slip-fit insertion into either housing half,
7311118 Floating ball check valve December 25, 2007
In an improved floating ball check valve including a body having an outlet port, a cap, having an inlet port, joined with the body, a ball guide slidably received within the body and having a ball pocket for receiving a sealing ball, a biasing spring for biasing the ball toward the inlet
7306652 Siloxane removal process December 11, 2007
Biogas released from landfills and sewage treatment plants is freed of siloxane contaminants by passing the biogas through a bed containing activated alumina, which absorbs the siloxanes. When the activated alumina becomes saturated with siloxanes, the absorption capability of the ac
7306646 Utilization of compressor surge control air in an aircraft on-board inert gas generating system December 11, 2007
Improvements in aircraft on-board inert gas generating systems wherein generally excess or surplus compressed airflow from a radial flow centrifugal compressor, produced in order to keep the compressor from surging in predetermined "reduced speed/reduced pressure ratio" operating mod
7302811 Fluid expansion-distribution assembly December 4, 2007
An expansion-distribution assembly (30) for the heat-absorbing component in a heatpump system. The assembly (30) comprises an envelope (32) forming an expansion chamber (54) and a distribution chamber (56). A shuttle (80) within the distribution chamber (56) is movable between a firs
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