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| Number | Title | Issue Date |
| 7516942 | Plug-style air-conditioning service valve An air-conditioning service plug-type valve includes a valve body having a chamber. First and second openings extend through the valve body. The air conditioning plug-type valve also includes a stem having a plug portion configured for being received in the chamber ... | 04/14/2009 |
| 7503173 | Control devices for swashplate type variable displacement piston pump Improvements in trunnion shaft-controlled swashplate axial hydraulic piston pumps as well as hydraulic systems used in hydrostatic transmissions utilized. e.g., in zero-turn-radius (ZTR) wheeled vehicles, such as grass mowers, with one embodiment thereof pertaining ... | 03/17/2009 |
| 7469718 | Quick disconnect cryogenic coupler A generally cylindrical quick disconnect female cryogenic coupler, interconnected with a cryogenic fluid transfer apparatus, includes a coupler body with a first cavity housing a laterally severed tubular bushing, an adaptor having one end attached to the coupler bo... | 12/30/2008 |
| 7455132 | Hydraulic axle combination A hydraulic axle combination includes a housing having first and second pump chambers containing spaced, axially aligned, first and second hydrostatic pumps with respective pump shafts and input gears; first and second hydraulic motors connected with respective firs... | 11/25/2008 |
| 7430860 | Hydrostatic transmission circuit 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... | 10/07/2008 |
| 7431635 | Internal gear grinding method 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 relation... | 10/07/2008 |
| 7404538 | Dual restrictor shut-off valve 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 t... | 07/29/2008 |
| 7392823 | Combination valve 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 ... | 07/01/2008 |
| 7370673 | Self-contained isolated port 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 fr... | 05/13/2008 |
| 7363940 | Flow-rate restrictor insert for orifice expansion device 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 bein... | 04/29/2008 |
| 7360304 | Folding stand for a portable crimping device 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 he... | 04/22/2008 |
| 7275474 | Optical position sensing and method In a variable displacement type hydraulic pump/motor assembly including at least one internally movable component, such as a yoke, a swashplate, and the means for moving the swashplate, the improvement includes imparting on this component absolute location indicia m... | 10/02/2007 |
| 7255544 | Housing including shock valves for use in a gerotor motor A housing for a motor having fluid passages integrated within. The passages include a first passage for receiving a fluid from outside the motor, a second passage for directing the fluid away from the motor, and at least one other passage from conveying the fluid to... | 08/14/2007 |
| 7243499 | Refrigeration capillary tube inside suction line assembly A refrigeration capillary tube inside suction tube heat exchanger assembly, including a suction tube whose ends each have a slot with a shaped inner end portion; two braze connectors, each including a sleeve portion with the free end having a shaped recess; a capill... | 07/17/2007 |
| 7213616 | Diversion valve fluid coupling A diversion valve fluid coupling, permitting alternate flows in first and second operating positions, including a valve housing with inlet, first and second outlet ports; a quick disconnect coupling attached to the second outlet port and a seal interposed therebetwe... | 05/08/2007 |
| 7174726 | Adjustable nozzle distributor A distributor, for use in a refrigerant system for conveying refrigerant between an expansion device and an evaporator, having a longitudinal body, an actuator, a plug, a first nozzle, and a second nozzle. The longitudinal body having a first end, a second end, a lo... | 02/13/2007 |
| 7159701 | Automatic drag brake for a power take-off unit output shaft Improvement in a drag brake assembly for a power take-off unit, for use on trucks and the like, including a first reaction member axially located on an output shaft thereon; a brake disc rotatably affixed to and axially movable on the output shaft; a second reaction... | 01/09/2007 |
| 7147003 | Coaxial quick disconnect coupling A quick disconnect coupler apparatus fluidly connecting coaxially aligned first and second couplings (50, 130), wherein the both couplings (50, 130) have an inner high pressure passage (26) and a coaxial outer lower pressure passage (53).... | 12/12/2006 |
| 7111641 | Zero flow fireproof quick disconnect coupling In an improved quick disconnect coupling comprised of operator-actuated coupler and nipple assemblies, the former including an actuating sleeve, with the coupled assemblies having first and second sealing assemblies respectively, wherein the improvement comprises, i... | 09/26/2006 |
| 7108291 | Clip coupling A connector, for attachment with a hose, having a generally tubular shaped longitudinal nipple with a proximal and distal end and a bore extending therethrough. The nipple has an exterior surface that defines an outwardly extending annular protuberance located betwe... | 09/19/2006 |
| 7107892 | Housing with multiple case drain ports for hydrostatic transmission pumps In a variable displacement hydraulic pump having a housing with a multiplicity of interconnected surfaces, including opposed end surfaces and intermediate side surfaces, the improvement comprising the location of at least one case drain orifice in each of a pluralit... | 09/19/2006 |
| 7081207 | Method for cleaning a filter element in a filtering chamber and filter carrying out the method The invention relates to a method for cleaning a filter element (9) located in a filtering chamber (10, 11) and to a filter implementing the method. The filter includes an inlet (4) leading to the inlet side (10) of the filtering chamber,... | 07/25/2006 |
| 7070208 | Straight thread adjustable port end An externally threaded male hydraulic coupling member adapted for threaded and sealed attachment to a port body with a female port. The male coupling member having a tubular member with a threaded end, a bore extending through the member, a first cylindrical periphe... | 07/04/2006 |
| 7063329 | Seal/method for improved retention of the sealing element in annular grooves A fitting having an axial end with a front face having an annular groove of half dovetail configuration for receiving a seal. The annular groove having a generally flat base portion, a first and a second side wall generally perpendicular with the base portion and a ... | 06/20/2006 |
| 7062834 | Process of forming two beads A process for forming a metallic tubular connector of the type having a cylindrical shell which extends circumferentially about a tubular body for joining said tubular connector to a conduit. The process involves using a first forming machine to form a first periphe... | 06/20/2006 |
| 7051996 | Plug-style air-conditioning service valve In a plug-style valve, such as an air-conditioning service plug-style valve, basically including a valve body, a stem, a retainer including a service fitting and a valve core, and a cap, the plug including an intermediate O-ring, between the valve body and the plug,... | 05/30/2006 |
| 7047865 | Cylinder with fiber optical position sensing device A fluid-pressure actuated piston/cylinder assembly having a sensor capable of reading at least one indicia marking on a piston rod in order to determine the movement and specific location of the piston rod and cylinder relative to each other. The sensor is housed wi... | 05/23/2006 |
| 7014218 | Universal fitting nipple A permanently attachable hose coupling for a pressurized conduit end having a generally tubular nipple and a generally cylindrical shell permanently attached to the nipple and generally surrounding the conduit end. The nipple has a longitudinal axis, first and secon... | 03/21/2006 |
| 7007476 | Gas turbine fuel system staging valves In a fuel injector circuit for a gas turbine engine, a fuel staging valve assembly for distributing fuel into multiple zones in the combustor, the staging valve assembly, including a pilot valve operatively interconnected with at least one main valve, having high pr... | 03/07/2006 |
| 6971625 | Pilot operated valve with variable piston orifice A valve assembly having a valve body, a piston, a modulating plug, a valve cover adjoining the valve body, and a throttling member. The valve body has an inlet and outlet port, a partition with a valve seat separating the valve body into a first and second flow pass... | 12/06/2005 |
| 6953053 | Pressure relief valve assembly A relief valve assembly including a valve member, having inlet and outlet bores, for sliding movement within a valve body bore portion, having a cylindrical sleeve portion, journalled via a cylindrical sleeve bearing for substantially the entire axial extent thereof... | 10/11/2005 |
| 6932587 | Gerotor motor with valve in rotor A rotary fluid pressure device having a housing member, a manifold assembly, an internally generated rotor type gerotor set, an end plate, and a rotatably journaled torque transfer shaft interconnected with the gerotor set and extending within the housing member and... | 08/23/2005 |
| 6902143 | Manual override assembly for pilot-operated valve In a pilot-operated valve having a valve body, including inlet and outlet portions controllably interconnected via a main piston bore portion; a main piston movable within the main piston bore; an operator portion; an operator assembly including a movable plunger as... | 06/07/2005 |
| 6868684 | Block valve with integral refrigerant lines A refrigerant assembly includes a block-type thermostatic expansion valve and one or more refrigerant tubes. The body of the block valve has a port extending inwardly from one surface, and a refrigerant tube is received in the port. The refrigerant tube includes an ... | 03/22/2005 |
| 6851349 | Bleederless telescopic cylinder A telescopic cylinder comprised of an outer cylinder, a plurality of decreasing diameter piston/sleeve assemblies concentrically mounted in the outer cylinder for reciprocal axial movement relative thereto, and a plunger assembly concentrically mounted within the in... | 02/08/2005 |
| 6837047 | Hydraulic devices for smooth operations of hydrostatic transmission A hydraulic valve assembly, for use in a hydrostatic transmission, for controlling fluid transfer between a first, a second and a third line, wherein two of the lines define first and second pressure lines, within a closed-loop circuit. The valve assembly comprises:... | 01/04/2005 |
| 6834574 | Cylinder with optical position sensing device and method A fluid-pressure actuated piston/cylinder assembly having a sensor capable of reading at least one indicia marking on a piston rod in order to determine the movement and specific location of the piston rod and cylinder relative to each other. The sensor is housed wi... | 12/28/2004 |
| 6808157 | Hollow piston restrictor An improved solenoid valve assembly for controlling fluid flow having a valve body with an inlet and outlet, a diaphragm assembly with passages for providing fluid communication between the inlet and the outlet, and a movable seal pad responsive to an external signa... | 10/26/2004 |
| D497089 | Portable crimping device | 10/12/2004 |
| 6793472 | Multi-plate hydraulic manifold A hydraulic device for one of a motor and pump, having a manifold assembly positioned between a gerotor set and a housing for the device, the manifold assembly adapted for conducting pressurized fluid to the gerotor set and conducting exhaust fluid from the gerotor ... | 09/21/2004 |
