Patents Represented by Attorney Christopher H. Hunter
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Patent number: 8268170Abstract: A filter including a filter bowl (4), filer head (48) and filter element (2). The filter element (2) comprises a locking ring (12), a first end cap (6) coupled to the locking ring (12), a filter media (10) coupled to the first end cap (6), and a locking rib (30) extending outwardly from the locking ring (12). The locking rib (30) comprises a first portion (34) which extends radially from the locking ring (12) and a second portion (38) which extends from the first portion (34) around the periphery of the locking ring (12). At least part of the second portion (38) of the locking rib (30) is arranged to flex relative to the first portion (34) of the locking rib (30). The locking rib (30) forms part of a bayonet connection.Type: GrantFiled: December 21, 2010Date of Patent: September 18, 2012Assignee: Parker Hannifin (UK) Ltd.Inventors: Phillip R. Core, Digby J. Scott
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Patent number: 8257581Abstract: A water filter comprising a closed shell, a filter media and a valve. The closed shell having an inlet and an outlet. The filter media is within the shell and arranged such that water flowing from the inlet to the outlet passes through the filter media. The filter media is arranged to filter hydrocarbons from the water to reduce the proportion of hydrocarbons in water exiting the water filter to below a predetermined threshold. The valve is arranged such that water passing through the water filter passes through the valve. The valve comprises a chamber housing a plug of material arranged to absorb a predetermined proportion of hydrocarbons present in water passing through the valve. the plug of material changes its material properties in response to absorbing hydrocarbons to restrict or block the flow of water through the water filter before exhaustion of the filter media causes the proportion of hydrocarbons in water exiting the water filter to rise above the predetermined threshold.Type: GrantFiled: November 30, 2011Date of Patent: September 4, 2012Assignee: Parker Hannifin (UK) LimitedInventor: Lana Ferrari
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Patent number: 8177874Abstract: A filter assembly for removing material entrained in a fluid stream, comprises a housing for a filter element, having a head part and a body part for receiving a filter element, and inlet and outlet ports for the fluid that is to be filtered. The head part and the body part each have engagement formations which enable the head and body parts to be connected to one another and separated by relative rotation about an axis which is coaxial with a head axis and a body axis. Head and body part keying formations can be provided in the form of at least one recess which is provided in a rib on one of the head and body parts, and at least one projection which is provided on the other of the head and body parts.Type: GrantFiled: January 22, 2010Date of Patent: May 15, 2012Assignee: Parker Hannifin LimitedInventors: Thomas S. Bittle, Brian Lane
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Patent number: 8177971Abstract: A filter assembly for removing material entrained in a fluid stream includes a housing having a head part and a body part, and inlet and outlet ports for the fluid that is to be filtered, in which at least one of the ports is provided in the head part, the head part having a chamber port fluidly connected to the at least one port in the head part, the head and body parts having first formations which enable them to be connected to one another and separated by relative rotation. The assembly includes a filter element for removing material entrained in the fluid stream that can be received in the body part, the filter element and body part having second formations which restrict relative rotation between them, the filter element having a filter port, in which a fluid tight connection can be provided between the filter port and the chamber port by sliding one of them into the other along a first axis.Type: GrantFiled: January 21, 2010Date of Patent: May 15, 2012Assignee: Parker Hannifin LimitedInventors: Thomas S. Bittle, Brian Lane
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Patent number: 8075656Abstract: A separator assembly for removing material that is entrained in a gas stream. The separator assembly comprises a housing having inlet and outlet ports for the gas from which material is to be removed. The inlet and outlet ports are located toward the upper end of the housing. A flow director is positioned so that gas flowing into the housing flows over the flow director so that the incoming gas is made to follow a generally helical path within the housing. The separator assembly also comprises a shield which extends across the housing towards the lower end thereof so as to leave a collection space between it and the lower end in which material that is separated from the gas stream can collect. There is at least one opening in or around the shield through which the material can flow past the shield into the collection space. The face of the shield which is directed towards the upper end of the housing is bowl-shaped.Type: GrantFiled: January 11, 2008Date of Patent: December 13, 2011Assignee: Parker Hannifin LimitedInventors: Brian Lane, Stephen Bittle, Ray Trowsdale
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Patent number: 8043503Abstract: A quick attachment feature for a filter includes i) a pair of radially-outward projecting pivots on opposite sides of the filter canister toward a lower end thereof; and ii) a pair of flexible retaining clips also located on opposite side of the canister toward the upper end thereof, each clip in substantial axial alignment along the canister with a respective pivot. The filter can be supported in a bracket including a pair of side walls, each of the side walls including i) a hook-shaped opening dimensioned to receive a respective pivot on the filter, and allow the filter to pivot from an orientation at an angle to the longitudinal axis of the bracket, to an orientation where the filter is substantially axially-aligned with the bracket; and ii) a catch dimensioned to engage and retain a respective retaining clip, when the filter is substantially aligned with the bracket.Type: GrantFiled: May 27, 2009Date of Patent: October 25, 2011Assignee: Parker-Hannifin CorporationInventor: Michael D. Clausen
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Patent number: 8002865Abstract: A separator assembly for removing material that is entrained in a gas stream. The separator assembly comprises a housing having a head part which provides the upper end of the housing and a body part which provides the lower end of the housing. The separator assembly also comprises a shield which extends across the housing towards the lower end thereof so as to leave a collection space between it and the lower end in which material that is separated from the gas stream can collect. There is at least one opening in or around the shield through which the material can flow past the shield into the collection space. The separator assembly further comprises a liner sleeve which covers at least a part of the inside wall of the body part between the shield and the upper end of the body part.Type: GrantFiled: June 25, 2010Date of Patent: August 23, 2011Assignee: Parker Hannifin LimitedInventors: Brian Lane, Stephen Bittle, Ray Trowsdale
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Patent number: 7938958Abstract: A de-aeration system for a fuel system, the fuel system having a housing for containing a fuel filter element, a fuel inlet and a fuel outlet is disclosed. The de-aeration system includes a de-aeration valve having a valve inlet in a lower face of the valve for connection to the housing for purging the air trapped in the housing. The de-aeration valve also includes a valve outlet in an upper face of the valve and a ball. The ball is configured to lift between the lower face and the upper face in response to an air pressure differential acting on the ball. This opens the valve to purge air trapped in the housing. The ball is further configured to close the valve by sealing against the valve outlet in the upper face in response to a pressure differential across the ball created by unfiltered fuel entering the valve.Type: GrantFiled: February 17, 2009Date of Patent: May 10, 2011Assignee: Parker Hannifin (UK) LimitedInventors: Phil Core, James Ashton, Steven Wilson
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Patent number: 7833304Abstract: An assembly for collecting material that is entrained in a gas stream comprises a housing defining a space within it, the housing having inlet and outlet ports for the gas that is to be filtered. The assembly includes a flow conduit which has a first conduit opening for communication with one of the ports and a second conduit opening for communication with the space within the housing. The axis of the first conduit opening and the axis of the second conduit opening are not aligned. The flow conduit contains at least one vane positioned within it so that the flow of gas along the conduit between the first and second conduit openings passes over the vane and is smoothed by it.Type: GrantFiled: January 23, 2007Date of Patent: November 16, 2010Assignee: Parker Hannifin LimitedInventors: John Pearson, Thomas Stephen Bittle, Raymond Francis Trowsdale, Brian Lane
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Patent number: 7766989Abstract: A separator assembly for removing material that is entrained in a gas stream. The separator assembly comprises a housing having a head part which provides the upper end of the housing and a body part which provides the lower end of the housing. The separator assembly also comprises a shield which extends across the housing towards the lower end thereof so as to leave a collection space between it and the lower end in which material that is separated from the gas stream can collect. There is at least one opening in or around the shield through which the material can flow past the shield into the collection space. The separator assembly further comprises a liner sleeve which covers at least a part of the inside wall of the body part between the shield and the upper end of the body part.Type: GrantFiled: January 11, 2008Date of Patent: August 3, 2010Assignee: Parker Hannifin LimitedInventors: Brian Lane, Stephen Bittle, Ray Trowsdale
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Patent number: 7686954Abstract: A device for treating a flowing liquid comprises a chamber containing a treatment medium, having an inlet through which liquid enters the chamber and an outlet through which liquid leaves the chamber. A plate is provided in the outlet, having at least one opening extending through it positioned such that liquid passing out of the chamber passes through the opening for discharge from the device. The outlet includes a skirt located downstream of the plate so that the plate is recessed from the outlet end of the device defined by the edge of the skirt, and a peelable protective cover which is attached to the edge of the skirt at the outlet end of the device to prevent ingress of contaminants into the device at its outlet end.Type: GrantFiled: February 21, 2007Date of Patent: March 30, 2010Assignee: Parker Hannifin LimitedInventor: Paul Hymus
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Patent number: 7517581Abstract: A hydrophilic semipermeable membrane can include a porous polymeric structure containing a blend of PVDF and hydroxyalkylcellulose. The membrane may be used for ultrafiltration. A method of making a hydrophilic semipermeable membrane can include providing a blend containing PVDF and hydroxyalkylcellulose, forming the blend into a porous polymeric structure, and purifying the porous polymeric structure.Type: GrantFiled: September 23, 2004Date of Patent: April 14, 2009Assignee: Parker-Hannifin CorporationInventors: John A. Simonetti, Irina Vinarov
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Patent number: 7503952Abstract: A filter element for removing material that is entrained in a gas stream comprising a wall of a filtration medium which defines a hollow space, for a gas stream to flow from the space through the wall. The filter element includes an end cap having an inlet tube extending into the hollow space for a gas stream to be supplied to the space, the inlet tube having a side wall extending between an upstream open end and a downstream open end. There is at least one opening in its side wall. The inlet tube has an upstream band, a middlestream band and a downstream band, the bands being axially adjacent to one another and non-overlapping. The bands have equal axial lengths of at least 5% of the length of the inlet tube, and are arranged such their planes are perpendicular to the axis of the inlet tube.Type: GrantFiled: January 22, 2007Date of Patent: March 17, 2009Assignee: Parker Hannifin LimitedInventors: Brian Lane, Raymond Francis Trowsdale
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Patent number: 7494017Abstract: A filter includes a filter element with an enlarged end cap at one end of a media ring with an elliptical flange set oblique or angled to the longitudinal axis of the element. The flange carries a sealing element, and is closely and sealingly received in a head casting of the filter to divide the head casting into inlet and outlet partitions. The end cap directs fluid from a transverse port in the housing into an axial flow path into the central cavity of the element, where the fluid flows radially outward through the media, and then out through an opposite transverse port in the head casting. The element can be removed when it is spent from the head casting after removal of an end closure.Type: GrantFiled: December 17, 2004Date of Patent: February 24, 2009Assignee: Parker-Hannifin CorporationInventor: Daniel W. Miller
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Patent number: 7490867Abstract: The invention relates to a pipe connector for a pressure-resistant, positive-fit, high pressure screwed joint. The connection includes a formed tube; a screw body or connector branch with a cone, which connects to a parallel axis drilling, with a radial end surface; a union nut; a sealing ring; and a retaining ring. The formed tube has a parallel axis end-piece with the same tube diameter and which corresponds to the depth of the tube seat base. The formed tube has a pronounced head which forms a mating face, with a cone surface of the union nut, and which leads to an abutment face at a front face of the retaining ring, essentially aligned with the tube axis. The retaining ring has a radial ring surface, which, in the assembled state, contacts with the front face of the cone of the connector branch or screw body, and thus permits a block assembly.Type: GrantFiled: March 28, 2002Date of Patent: February 17, 2009Assignee: Parker Hannifin PLCInventor: Dieter Ehrke
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Patent number: 7458414Abstract: Improvement, in hydraulic systems, such as for vehicle transmissions and the like, in the form of a hydraulic reservoir with integrated heat exchanger having fluid supply/return and fluid return ports, including a central section, having inner and outer shell portions with a first gap therebetween, the outer shell being provided with a plurality of radially-spaced, external cooling fins, longitudinally-directed for the length of the central section; the ends of the latter being closed off via respective bottom and top cap portions, thereby defining a central fluid cavity, the top cap portion having spaced outer and inner cap portions, with a second gap therebetween, with a fluid inlet port, in the outer cap portion, directing incoming fluid from the second gap into and through the entire length of the first gap before entering the central fluid cavity, thereby maximizing heat transfer from the fluid via the plurality of cooling fins.Type: GrantFiled: April 25, 2005Date of Patent: December 2, 2008Assignee: Parker-Hannifin CorporationInventor: Matthew H. Simon
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Patent number: 7445651Abstract: A filter element for removing material that is entrained in a gas stream comprises a wall of a filtration medium which defines a hollow space, for a gas stream to flow from the space through the wall. The filter element includes an end cap having an inlet tube for a gas stream to be supplied to the space. The tube has at least one helically extending rifle formation in its internal wall by which a helical flow is imparted to the gas stream when it leaves the tube.Type: GrantFiled: January 26, 2007Date of Patent: November 4, 2008Assignee: Parker Hannifin LimitedInventors: Brian Lane, Thomas Stephen Bittle
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Patent number: 7442220Abstract: An assembly for collecting material entrained in a gas stream comprising a housing having a head part and a body part, and inlet and outlet ports. A chamber port is provided in the head part having internal walls defining a primary chamber with a first end communicating with the chamber port and an opening at a second end. The axis of the first and second ends of the primary chamber are non-aligned. A flow conduit device has a first end which can fit into the primary chamber in the housing head part so that it is directed generally towards the chamber port in the housing and a second end which is directed towards the body part of the housing to provide a conduit for gas to flow between the body part of the housing and the outlet port. The flow conduit reduces turbulence in the flow of gas within the chamber.Type: GrantFiled: January 19, 2007Date of Patent: October 28, 2008Assignee: Parker Hannifin LimitedInventors: John Pearson, Thomas Stephen Bittle, Raymond Francis Trowsdale, Brian Lane
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Patent number: 7430851Abstract: 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 plurality of air inlets and the inner end thereof having a plurality of air openings connecting the cavity with tertiary air for a positive air wash, or in another embodiment, is located intermediate a fuel body and the shroud while having such inner radial dimensions so as to maintain first and second fuel/air venting gaps, with the transfer sleeve also having a peripheral outer recessed cavity wherein the inner end thereof encompasses the air inlets, with an outer end thereof being provided with a plurality of air openings, these openings connecting the recessed cavity with the first fuel/air gap downstream of a restrictor.Type: GrantFiled: September 6, 2005Date of Patent: October 7, 2008Assignee: Parker-Hannifin CorporationInventor: Kiran Patwari
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Patent number: 7395936Abstract: 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 is properly located for venting air from the filter element as the element fills with fluid. The housing includes a cylindrical body with a closed end a threaded open end, and a threaded, cup-shaped cover which is screwed down onto the housing. The filter element and housing include i) cooperating retaining devices which temporarily couple the filter element to the housing cover when the element is initially inserted into the housing and the cover is initially screwed onto the housing; and ii) cooperating orientation devices which rotationally orient the filter element in the housing as the housing cover is further and fully screwed down onto the housing.Type: GrantFiled: September 23, 2003Date of Patent: July 8, 2008Assignee: Parker-Hannifin CorporationInventor: Steven R. Knight