Patents by Inventor Leonard Quinn
Leonard Quinn has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7631656Abstract: A pressure control valve includes a housing, a piston within the housing, a biasing means within the housing for biasing the piston to seat in a first position for limiting fluid communication between an inlet port of the housing and an outlet port of the housing, and an insert cooperating with the biasing means for setting a pressure differential between an inlet side of the piston and an outlet side of the piston that unseats the piston from the first position for establishing fluid communication between the inlet port and the outlet port.Type: GrantFiled: November 16, 2005Date of Patent: December 15, 2009Assignee: Bendix Commercial Vehicle Systems LLCInventors: Fred Hoffman, Leonard Quinn
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Patent number: 7520922Abstract: A cartridge for an air dryer includes a desiccant volume, a desiccant in the desiccant volume for removing at least one of moisture and contaminants from air, a first passage in fluid communication with the desiccant volume and a first air storage volume, a second passage in fluid communication with the desiccant volume and in fluid communication with a second air storage volume, and a valve which, in a first position, restricts the fluid communication between the desiccant volume and the first air storage volume.Type: GrantFiled: September 30, 2005Date of Patent: April 21, 2009Assignee: Bendix Commercial Vehicle Systems LLCInventors: Fred W. Hoffman, Leonard A. Quinn, Eugene E. Clair
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Publication number: 20090056292Abstract: A purge exhaust processor includes an inlet chamber receiving a purge exhaust. A portion of the purge exhaust including at least one of moisture, air, and oil is passed from the inlet chamber to a sump volume. A heat source changes a phase of the moisture from liquid to gas. A wick transfers the oil from the sump volume to an oil collector.Type: ApplicationFiled: August 29, 2007Publication date: March 5, 2009Applicant: BENDIX COMMERCIAL VEHICLE SYSTEMS LLCInventors: William P. Fornof, Fred Hoffman, Leonard A. Quinn, Randall W. Nichols
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Publication number: 20080307965Abstract: An air dryer, used in a compressed air system, includes an oil coalescing element for agglomerating oil in compressed air passing through the oil coalescing element in a first direction during a charging cycle and passing through the oil coalescing element in a second direction during a purging cycle. A drying material, which is downstream of the oil coalescing element during the charging cycle and upstream of the oil coalescing element during the purging cycle, reduces moisture in the compressed air during the charging cycle.Type: ApplicationFiled: June 15, 2007Publication date: December 18, 2008Applicant: BENDIX COMMERCIAL VEHICLE SYSTEMS LLCInventors: Fred W. Hoffman, Leonard A. Quinn, William P. Fornof
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Publication number: 20080110340Abstract: An air drying arrangement for a commercial vehicle is provided having two or more desiccant canisters arranged in parallel on a single air dryer body. The arrangement may include an coupling device that attaches to the body and allows the two or more desiccant containing canisters to mount to the device. The arrangement may be configured to balance the flow of air to each of the desiccant containing canisters when drying air and/or when regenerating the desiccant.Type: ApplicationFiled: November 10, 2006Publication date: May 15, 2008Inventors: Fred W. Hoffman, Leonard A. Quinn
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Publication number: 20080110337Abstract: A saturation level of moisture and/or other contaminants is determined in a desiccant material by determining an electrical parameter across the desiccant material. An air dryer includes a housing, a desiccant in the housing, and an electrical contact in the desiccant. A level of at least one of moisture and other contaminants is determined as a function of an electrical parameter between two electrical contacts of dissimilar materials that electrically contact the desiccant. Alternatively, the level of at least one of moisture and other contaminants is determined as a function of an amount of the reflected light received by the optical sensor from the desiccant.Type: ApplicationFiled: November 9, 2006Publication date: May 15, 2008Applicant: Bendix Commercial Vehicle Systems LLCInventors: Fred W. Hoffman, Leonard A. Quinn, Randall W. Nichols, David J. Taneyhill, Justin R. Miller
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Patent number: 7285149Abstract: An oil separator for use in a vehicle air system includes a recycling valve for removing coalesced oil. The recycling valve may include a piston movable in a cylinder in response to a control air pressure to open the recycling valve and thus drain coalesced oil from a sump under the influence of residual air pressure in the sump. The separator may include a fixture for mounting the separator to a vehicle, including a plurality of ports extending from an inlet port for directing air into the cartridge with a combined flow area at least equal to the flow area of the inlet port. The plurality of ports preferably extend at a right angle to the direction of flow of air through the inlet port. A safety relief valve on the separator releases air when the pressure exceeds a predetermined pressure.Type: GrantFiled: October 31, 2003Date of Patent: October 23, 2007Assignee: Bendix Commercial Vehicle Systems LLCInventors: William P. Fornof, Gregory R. Ashley, Leonard A. Quinn, Fred W. Hoffman, Gregory C. Smith
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Publication number: 20070209705Abstract: A drain valve for a vehicle compressed air system. The drain valve including a body portion is adapted to separate water, debris and other relatively heavy objects from a compressed air stream passing through the valve and a gladhand portion capable of connecting to a gladhand connector. The drain may also include a pressure actuated valve and drain port for automatically discharging water from the drain valve.Type: ApplicationFiled: March 7, 2006Publication date: September 13, 2007Inventors: Randall Nichols, Gregory Ashley, Leonard Quinn, Fred Hoffman
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Publication number: 20070188013Abstract: An air charging arrangement for an air brake system of a vehicle driven by an internal combustion engine. The arrangement includes a hydraulic motor for driving an air compressor, which is mounted to the vehicle at a location that is thermally isolated from the engine. The arrangement may also include an air compressor controller that places the air compressor in a non-operating state when air pressure in an air reservoir is at or above a predetermined amount. In one embodiment, the air compressor is self-lubricated and air cooled.Type: ApplicationFiled: February 16, 2006Publication date: August 16, 2007Inventors: Fred Hoffman, Leonard Quinn
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Publication number: 20070107784Abstract: A pressure control valve includes a housing, a piston within the housing, a biasing means within the housing for biasing the piston to seat in a first position for limiting fluid communication between an inlet port of the housing and an outlet port of the housing, and an insert cooperating with the biasing means for setting a pressure differential between an inlet side of the piston and an outlet side of the piston that unseats the piston from the first position for establishing fluid communication between the inlet port and the outlet port.Type: ApplicationFiled: November 16, 2005Publication date: May 17, 2007Inventors: Fred Hoffman, Leonard Quinn
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Publication number: 20070084348Abstract: A cartridge for an air dryer includes a desiccant volume, a desiccant in the desiccant volume for removing at least one of moisture and contaminants from air, a first passage in fluid communication with the desiccant volume and a first air storage volume, a second passage in fluid communication with the desiccant volume and in fluid communication with a second air storage volume, and a valve which, in a first position, restricts the fluid communication between the desiccant volume and the first air storage volume.Type: ApplicationFiled: September 30, 2005Publication date: April 19, 2007Inventors: Fred Hoffman, Leonard Quinn, Eugene Clair
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Publication number: 20070028777Abstract: A purge valve for use with an air drying system is provided. The valve includes a housing or body, a piston disposed within the body, and a valve in communication with the piston. The respective geometries of the piston body and the valve define a circumferential cavity between and around the piston body and the valve. A sealing means is disposed within the circumferential cavity for forming a seal between the valve and the body. A plurality of guide members attached to or formed integrally with the valve provide positional stability to the valve within the body and provide enhanced airflow in, through, and around the valve.Type: ApplicationFiled: August 8, 2005Publication date: February 8, 2007Applicant: Bendix Commercial Vehicle Systems, LLCInventors: Fred Hoffman, Leonard Quinn, Randall Nichols
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Publication number: 20060236558Abstract: An improved system and method for mounting an air dryer is provided. The improved system and method employs a single centralized special fitting that secures the air dryer manifold to a reservoir. The bore in which the fitting is disposed is used to communicate air from the reservoir to the air dryer in order to purge the desiccant in the air dryer. The mounting assembly includes anti-rotational mechanisms which prevent the air dryer from rotating about its axis. The mounting assembly may also include a reservoir and a mounting bracket for the reservoir which uses less than 75 percent of a truck mounting rail height.Type: ApplicationFiled: June 26, 2006Publication date: October 26, 2006Inventors: Fred Hoffman, Leonard Quinn
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Patent number: 7100305Abstract: An improved system and method for mounting an air dryer is provided. The improved system and method employs a single centralized special fitting that secures the air dryer manifold to a reservoir. The bore in which the fitting is disposed is used to communicate air from the reservoir to the air dryer in order to purge the desiccant in the air dryer. The mounting assembly includes anti-rotational mechanisms which prevent the air dryer from rotating about its axis. The mounting assembly may also include a reservoir and a mounting bracket for the reservoir which uses less than 75 percent of a truck mounting rail height.Type: GrantFiled: September 27, 2003Date of Patent: September 5, 2006Assignee: Bendix Commerical Vehicle Systems LLCInventors: Fred Hoffman, Leonard Quinn
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Patent number: RE39467Abstract: An air dryer and reservoir assembly for providing compressed air from an air compressor (20) on a heavy motor vehicle which includes an air dryer (14) connected to receive compressed air from the air compressor (20) and a secondary reservoir (12), including an integral purge volume (34), for storing compressed air which passes through the air dryer (14), with the air dryer (14) and the secondary reservoir (12) being securely attached to a housing (16) to form an air dryer reservoir module (10). A primary reservoir (18) for storing compressed air from the air dryer (14) is located remote from the air dryer reservoir module (10). A pressure equalizing mechanism (57) is disposed between the primary reservoir (18) and the secondary reservoir (12) for keeping pressure in the two reservoirs (12,18) equal.Type: GrantFiled: November 24, 2003Date of Patent: January 16, 2007Assignee: Bendix Commercial Vehicle Systems LLCInventors: Leonard A. Quinn, Fred W. Hoffman, David J. Goodell
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Patent number: D546431Type: GrantFiled: April 19, 2004Date of Patent: July 10, 2007Assignee: Bendix Commercial Vehicle Systems LLCInventors: Leonard A. Quinn, Fred W. Hoffman
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Patent number: D570979Type: GrantFiled: January 3, 2007Date of Patent: June 10, 2008Assignee: Bendix Commercial Vehicle Systems LLCInventors: Leonard A. Quinn, Fred W. Hoffman
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Patent number: D573240Type: GrantFiled: January 3, 2007Date of Patent: July 15, 2008Assignee: Bendix Commercial Vehicle Systems LLCInventors: Leonard A. Quinn, Fred W. Hoffman
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Patent number: D574940Type: GrantFiled: January 3, 2007Date of Patent: August 12, 2008Assignee: Bendix Commercial Vehicle Systems LLCInventors: Leonard A. Quinn, Fred W. Hoffman
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Patent number: D604821Type: GrantFiled: April 7, 2006Date of Patent: November 24, 2009Assignee: Bendix Commercial Vehicle Systems LLCInventors: Leonard A. Quinn, Gregory Ashley