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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Publication number: 20060162778Abstract: A drain valve for a vehicle compressed air system, which separates dirt, water, debris and other relatively heavy objects from a compressed air stream. The drain valve includes a sump with a tangential inlet. The tangential inlet creates a vortex within the sump that collects relatively heavy objects at the bottom of the sump and allows the compressed air to exit the drain valve through an outlet port located at the top of the drain valve. A pressure actuated valve and drain port allows for the water to be discharged from the drain valve while retaining the pneumatic signal.Type: ApplicationFiled: August 25, 2004Publication date: July 27, 2006Inventors: Randall Nichols, Fred Hoffman, Leonard Quinn
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Patent number: 7008472Abstract: A serviceable filtering oil removal cartridge for use in a compressed air assembly of a vehicle air brake system includes a housing having a first end and a second end. A filtering element is disposed within the housing for agglomerating and removing oil from compressed air entering the oil removal cartridge. A load plate is disposed within the housing for supporting the filtering element. The load plate includes a connecting portion dimensioned to allow the oil removal cartridge to be removed and installed as a single unit. The connecting portion is preferably a threaded annulus. A thermal vent can be included, wherein pressure is released from the oil removal cartridge upon reaching a threshold temperature.Type: GrantFiled: January 29, 2003Date of Patent: March 7, 2006Assignee: Bendix Commercial Vehicle Systems, LLCInventors: William P. Fornof, Gregory Ashley, Leonard Quinn
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Patent number: 6951581Abstract: An air dryer assembly for removing moisture and oil from a compressed air system includes a desiccant material received in a shell for adsorbing moisture as compressed air passes therethrough. A coalescing element is disposed between an inlet and outlet for removing oil aerosols from the compressed air. A check valve is disposed in parallel with the coalescing element and forces the compressed air to pass through the coalescing element as air flows from the inlet to the outlet. During a purge or reverse flow, compressed air bypasses the coalescing element and removes oil collected in the cartridge through the inlet.Type: GrantFiled: March 8, 2004Date of Patent: October 4, 2005Assignee: Bendix Commercial Vehicle Systems LLCInventors: William P. Fornof, James P. Koenig, Leonard Quinn
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Publication number: 20050092180Abstract: 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: ApplicationFiled: October 31, 2003Publication date: May 5, 2005Inventors: William Fornof, Gregory Ashley, Leonard Quinn, Fred Hoffman, Gregory Smith
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Patent number: 6881245Abstract: A method and apparatus for mounting an air dryer to a commercial vehicle is provided. The end caps of the membrane air dryer are used to retain the membrane air dryer core and attach the membrane air dryer to the surface of the air supply reservoir. Bosses can be welded to the external surface of the air supply reservoir, which can then be used to mount the membrane air dryer by bolting the end caps to the bosses. The method and apparatus can be applied to two or three tank air supply reservoir systems. A disengagement tank may be included within the air dryer system, in place of a coalescing filter, to reduce the amount of moisture that reaches the membrane air dryer core.Type: GrantFiled: October 18, 2002Date of Patent: April 19, 2005Assignee: Bendix Commercial Vehicle Systems LLCInventors: Randall W. Nichols, Fred W. Hoffman, Leonard A. Quinn
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Patent number: 6878194Abstract: An air dryer assembly and mounting bracket for mounting an air dryer to a vehicle. The air dryer assembly has a manifold and a canister which seal against the surface of the mounting bracket. Orientation pegs are provided along the sealing surface of the air dryer manifold and receive corresponding indented regions in a cut out region in the mounting bracket. By providing a number of orientation pegs on the surface of the manifold, a number of mounting orientations for the air dryer assembly can be achieved.Type: GrantFiled: February 6, 2003Date of Patent: April 12, 2005Assignee: Bendix Commercial Vehicle Systems LLCInventors: Fred Hoffman, Leonard A. Quinn
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Publication number: 20050066540Abstract: 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: September 27, 2003Publication date: March 31, 2005Applicant: BENDIX COMMERCIAL VEHICLE SYSTEMS LLCInventors: Fred Hoffman, Leonard Quinn
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Patent number: 6858066Abstract: 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: June 26, 2003Date of Patent: February 22, 2005Inventors: Leonard A. Quinn, Fred W. Hoffman, David J. Goodell
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Patent number: 6786953Abstract: An air dryer assembly for removing moisture and oil from a compressed air system includes a desiccant material received in a shell for adsorbing moisture as compressed air passes therethrough. A coalescing element is disposed between an inlet and outlet for removing oil aerosols from the compressed air. A check valve is disposed in parallel with the coalescing element and forces the compressed air to pass through the coalescing element as air flows from the inlet to the outlet. During a purge or reverse flow, compressed air bypasses the coalescing element and removes oil collected in the cartridge through the inlet.Type: GrantFiled: July 26, 2002Date of Patent: September 7, 2004Assignee: Bendix Commercial Vehicle Systems LLCInventors: William P. Fornof, James P. Koenig, Leonard Quinn
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Publication number: 20040163535Abstract: An air dryer assembly for removing moisture and oil from a compressed air system includes a desiccant material received in a shell for adsorbing moisture as compressed air passes therethrough. A coalescing element is disposed between an inlet and outlet for removing oil aerosols from the compressed air. A check valve is disposed in parallel with the coalescing element and forces the compressed air to pass through the coalescing element as air flows from the inlet to the outlet. During a purge or reverse flow, compressed air bypasses the coalescing element and removes oil collected in the cartridge through the inlet.Type: ApplicationFiled: March 8, 2004Publication date: August 26, 2004Applicant: BENDIX COMMERCIAL VEHICLE SYSTEMS LLCInventors: William P. Fornof, James P. Koenig, Leonard Quinn
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Publication number: 20040154187Abstract: An air dryer assembly and mounting bracket for mounting an air dryer to a vehicle. The air dryer assembly has a manifold and a canister which seal against the surface of the mounting bracket. Orientation pegs are provided along the sealing surface of the air dryer manifold and receive corresponding indented regions in a cut out region in the mounting bracket. By providing a number of orientation pegs on the surface of the manifold, a number of mounting orientations for the air dryer assembly can be achieved.Type: ApplicationFiled: February 6, 2003Publication date: August 12, 2004Inventors: Fred Hoffman, Leonard A. Quinn
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Publication number: 20040134343Abstract: A spring brake actuator comprises a housing including a first housing portion and a second housing portion. A spring disposed in the housing exerts a biasing force tending to separate the first housing portion from the second housing portion. A band clamp connects the first housing portion with the second housing portion. The band clamp comprises at least one band segment engaging the first and second housing portions, at least one fastener securing the band segment in a tamper-resistant manner, and a cover at least partially enclosing the fastener in a tamper-resistant manner.Type: ApplicationFiled: January 15, 2003Publication date: July 15, 2004Inventors: Gregory R. Ashley, Leonard Quinn, Fred Hoffman, Richard B. Jacobs
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Publication number: 20040074721Abstract: A method and apparatus for mounting an air dryer to a commercial vehicle is provided. The end caps of the membrane air dryer are used to retain the membrane air dyer core and attach the membrane air dryer to the surface of the air supply reservoir. Bosses can be welded to the external surface of the air supply reservoir, which can then be used to mount the membrane air dryer by bolting the end caps to the bosses. The method and apparatus can be applied to two or three tank air supply reservoir systems. A disengagement tank may be included within the air dryer system, in place of a coalescing filter, to reduce the amount of moisture that reaches the membrane air dryer core.Type: ApplicationFiled: October 18, 2002Publication date: April 22, 2004Inventors: Randall W. Nichols, Fred W. Hoffman, Leonard A. Quinn
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Publication number: 20040045436Abstract: 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: ApplicationFiled: June 26, 2003Publication date: March 11, 2004Applicant: Bendix Commercial Vehicle Systems LLCInventors: Leonard A. Quinn, Fred W. Hoffman, David J. Goodell
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Patent number: 6695893Abstract: A continuous flow dryer system for compressed air includes first and second air dryers for receiving and alternately drying compressed air from a source. The dried air from the first dryer is transmitted to the second dryer. First and second reservoirs store the dried compressed air. A plurality of control valves in the second air dryer are used for distributing the dried air to the respective reservoirs.Type: GrantFiled: March 29, 2002Date of Patent: February 24, 2004Assignee: Bendix Commercial Vehicle Systems LLCInventors: Fred W. Hoffman, Charles E. Eberling, Leonard A. Quinn
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Publication number: 20040016342Abstract: An air dryer assembly for removing moisture and oil from a compressed air system includes a desiccant material received in a shell for adsorbing moisture as compressed air passes therethrough. A coalescing element is disposed between an inlet and outlet for removing oil aerosols from the compressed air. A check valve is disposed in parallel with the coalescing element and forces the compressed air to pass through the coalescing element as air flows from the inlet to the outlet. During a purge or reverse flow, compressed air bypasses the coalescing element and removes oil collected in the cartridge through the inlet.Type: ApplicationFiled: July 26, 2002Publication date: January 29, 2004Inventors: William P. Fornof, James P. Koenig, Leonard Quinn
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Patent number: 6679527Abstract: A serviceable design for a pressure vessel or reservoir includes a removable retainer accessible from a location external to the reservoir. Many existing, commercially available components can be used with only slight modification while providing ease of access to repair/replace seal members if so desired.Type: GrantFiled: October 5, 2001Date of Patent: January 20, 2004Assignee: Bendix Commercial Vehicle Systems LLCInventors: Fred Hoffman, Leonard Quinn
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Publication number: 20030183077Abstract: A continuous flow dryer system for compressed air includes first and second air dryers for receiving and alternately drying compressed air from a source. The dried air from the first dryer is transmitted to the second dryer. First and second reservoirs store the dried compressed air. A plurality of control valves in the second air dryer are used for distributing the dried air to the respective reservoirs.Type: ApplicationFiled: March 29, 2002Publication date: October 2, 2003Inventors: Fred W. Hoffman, Charles E. Eberling, Leonard A. Quinn
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Patent number: 6585806Abstract: 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: May 16, 2000Date of Patent: July 1, 2003Assignee: Bendix Commercial Vehicle Systems LLCInventors: Leonard A. Quinn, Fred W. Hoffman, David J. Goodell
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Publication number: 20030110949Abstract: A serviceable filtering oil removal cartridge for use in a compressed air assembly of a vehicle air brake system includes a housing having a first end and a second end. A filtering element is disposed within the housing for agglomerating and removing oil from compressed air entering the oil removal cartridge. A load plate is disposed within the housing for supporting the filtering element. The load plate includes a connecting portion dimensioned to allow the oil removal cartridge to be removed and installed as a single unit. The connecting portion is preferably a threaded annulus. A thermal vent can be included, wherein pressure is released from the oil removal cartridge upon reaching a threshold temperature.Type: ApplicationFiled: January 29, 2003Publication date: June 19, 2003Inventors: William P. Fornof, Gregory Ashley, Leonard Quinn