Patents by Inventor David W. Perry
David W. Perry 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: 11752462Abstract: An effluent processing apparatus comprises a housing having an inlet port and a chamber. A coalescing element is located in the chamber and arranged coaxially with the inlet port. The coalescing element has pleats in a predefined pattern of paths arranged to separate oil and water from an effluent mixture containing air, oil, and water. The effluent mixture flows into the inlet port along an axis of the coalescing element. The effluent mixture is deflected by a portion of the housing to flow perpendicular to the axis along major surfaces of the pleats to separate oil and water from the effluent mixture.Type: GrantFiled: June 1, 2021Date of Patent: September 12, 2023Assignee: Bendix Commercial Vehicle Systems LLCInventors: Stephen Howe, David W. Perry, Gregory R. Ashley, Fred W. Hoffman
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Patent number: 11596885Abstract: An oil sequestering, air-drying cartridge device comprises a pair of tandem fluid diodes for respectively preventing backflow of moist air into an oil coalescing filter and preventing backflow of dry air into a desiccant material. The device comprises an outer cartridge skin and a middle shell concentrically nested between the cartridge skin and an inner shell. The middle shell houses channel walls having offset wave-like contours that prevent backflow of moist air into the oil filter, and the inner shell comprises similar channel walls that prevent backflow of dry air into the desiccant, which is positioned between the inner and middle shells.Type: GrantFiled: May 7, 2019Date of Patent: March 7, 2023Assignee: Bendix Commercial Vehicle Systems LLCInventors: Stephen Howe, David W. Perry, Timothy Carritte
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Patent number: 11420137Abstract: An effluent processing device includes an input port to receive an effluent mixture containing air, oil, and water. One or more baffles are positioned between the input port and at least one air outlet to deflect the effluent mixture to assist in separating the oil and the water from the air. A member positioned below the one or more baffles selectively allows only oil of the separated oil and water to pass from a first side of the member through openings in the member to a second side of the member. A sump is arranged to receive and retain the oil on the second side of the member as the oil passes from the first side to the second side. The effluent processing devices includes at least one air outlet through which air is exhausted to atmosphere.Type: GrantFiled: January 28, 2021Date of Patent: August 23, 2022Assignee: Bendix Commercial Vehicle Systems LLCInventors: Fred W. Hoffman, Stephen Howe, David W. Perry, Gregory R. Ashley
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Patent number: 11207639Abstract: An absorbent apparatus is provided for an air dryer purge air cleaner. The absorbent apparatus comprises a volume for containing absorbent material. The absorbent apparatus also comprises absorbent material that is both oleophilic and hydrophobic and is packed in the volume to provide a packed bed of absorbent material with a predetermined packing density. The packing of the material provides for a first and second flow path of an effluent stream through the absorbent material.Type: GrantFiled: January 29, 2020Date of Patent: December 28, 2021Assignee: Bendix Commercial Vehicle Systems LLCInventors: Stephen Howe, David W. Perry
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Publication number: 20210283543Abstract: An effluent processing apparatus comprises a housing having an inlet port and a chamber. A coalescing element is located in the chamber and arranged coaxially with the inlet port. The coalescing element has pleats in a predefined pattern of paths arranged to separate oil and water from an effluent mixture containing air, oil, and water. The effluent mixture flows into the inlet port along an axis of the coalescing element. The effluent mixture is deflected by a portion of the housing to flow perpendicular to the axis along major surfaces of the pleats to separate oil and water from the effluent mixture.Type: ApplicationFiled: June 1, 2021Publication date: September 16, 2021Inventors: Stephen Howe, David W. Perry, Gregory R. Ashley, Fred W. Hoffman
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Publication number: 20210146279Abstract: An effluent processing device includes an input port to receive an effluent mixture containing air, oil, and water. One or more baffles are positioned between the input port and at least one air outlet to deflect the effluent mixture to assist in separating the oil and the water from the air. A member positioned below the one or more baffles selectively allows only oil of the separated oil and water to pass from a first side of the member through openings in the member to a second side of the member. A sump is arranged to receive and retain the oil on the second side of the member as the oil passes from the first side to the second side. The effluent processing devices includes at least one air outlet through which air is exhausted to atmosphere.Type: ApplicationFiled: January 28, 2021Publication date: May 20, 2021Inventors: Fred W. Hoffman, Stephen Howe, David W. Perry, Gregory R. Ashley
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Patent number: 10933351Abstract: An effluent processing apparatus comprises a separator device arranged to receive an effluent mixture to separate oil and water from the effluent mixture and thereby to provide clean air. A member selectively allows either only oil or only water of the separated oil and water to pass from a first side of the member through openings in the member to a second side of the member. A sump is arranged to (i) receive and retain the oil on the first side if only water passes from the first side to the second side, and (ii) receive and retain the oil on the second side if only oil passes from the first side to the second side. Clean air from the separator device is exhausted through an air outlet to atmosphere, and water is drained through a water outlet to atmosphere.Type: GrantFiled: April 30, 2018Date of Patent: March 2, 2021Assignee: Bendix Commercial Vehicle Systems LLCInventors: Fred W Hoffman, Stephen Howe, David W Perry, Gregory R Ashley
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Publication number: 20200353389Abstract: An oil sequestering, air-drying cartridge device comprises a pair of tandem fluid diodes for respectively preventing backflow of moist air into an oil coalescing filter and preventing backflow of dry air into a desiccant material. The device comprises an outer cartridge skin and a middle shell concentrically nested between the cartridge skin and an inner shell. The middle shell houses channel walls having offset wave-like contours that prevent backflow of moist air into the oil filter, and the inner shell comprises similar channel walls that prevent backflow of dry air into the desiccant, which is positioned between the inner and middle shells.Type: ApplicationFiled: May 7, 2019Publication date: November 12, 2020Applicant: Bendix Commercial Vehicle Systems LLCInventors: Stephen Howe, David W. Perry, Timothy Carritte
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Publication number: 20200179856Abstract: An effluent processing apparatus comprises a coalescing element arranged to separate oil and water from an effluent mixture containing air, oil, and water from a purge valve of an air dryer. The coalescing element includes a plurality of members which define a predefined pattern of paths along which the effluent mixture flows to separate oil and water therefrom.Type: ApplicationFiled: December 10, 2018Publication date: June 11, 2020Inventors: Stephen Howe, David W. Perry, Gregory R. Ashley, Fred W. Hoffman
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Publication number: 20200164305Abstract: An absorbent apparatus is provided for an air dryer purge air cleaner. The absorbent apparatus comprises a volume for containing absorbent material. The absorbent apparatus also comprises absorbent material that is both oleophilic and hydrophobic and is packed in the volume to provide a packed bed of absorbent material with a predetermined packing density. The packing of the material provides for a first and second flow path of an effluent stream through the absorbent material.Type: ApplicationFiled: January 29, 2020Publication date: May 28, 2020Inventors: Stephen Howe, David W. Perry
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Patent number: 10583391Abstract: An absorbent apparatus is provided for an air dryer purge air cleaner. The absorbent apparatus comprises a volume for containing absorbent material. The absorbent apparatus also comprises absorbent material that is both oleophilic and hydrophobic and is packed in the volume to provide a packed bed of absorbent material with a predetermined packing density.Type: GrantFiled: December 18, 2017Date of Patent: March 10, 2020Assignee: Bendix Commercial Vehicle Systems LLCInventors: Stephen Howe, David W Perry
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Patent number: 10583820Abstract: An effluent processing apparatus is provided for a vehicle air brake charging system. The effluent processing apparatus comprises an inlet port through which effluent from a purge valve of an air dryer can be received and an outlet port. The effluent processing apparatus also comprises a spiral-shaped effluent channel having a portion of decreasing channel width disposed between the inlet port and the outlet port. The spiral-shaped effluent channel is provided for increasing velocity of an effluent stream as the effluent stream flows through the decreasing channel width portion of the spiral-shaped effluent channel.Type: GrantFiled: September 29, 2017Date of Patent: March 10, 2020Assignee: Bendix Commercial Vehicle Systems LLCInventors: Stephen Howe, David W Perry, Gregory R Ashley, Fred W Hoffman
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Patent number: 10583382Abstract: An effluent processing apparatus is provided for a vehicle air brake charging system. The effluent processing apparatus has an inlet port through which effluent from a purge valve of an air dryer can be received and an outlet port. The effluent processing apparatus further has a quadric surface defining an effluent flow chamber that is connected in fluid communication between the inlet port and the outlet port. The quadric surface is provided for extracting contaminants from an effluent stream as the effluent stream flows from the inlet port along the quadric surface to the outlet port.Type: GrantFiled: October 4, 2017Date of Patent: March 10, 2020Assignee: Bendix Commercial Vehicle Systems LLCInventors: Stephen Howe, David W Perry, Gregory R Ashley, Fred W Hoffman
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Publication number: 20190329156Abstract: An effluent processing apparatus comprises a separator device arranged to receive an effluent mixture to separate oil and water from the effluent mixture and thereby to provide clean air. A member selectively allows either only oil or only water of the separated oil and water to pass from a first side of the member through openings in the member to a second side of the member. A sump is arranged to (i) receive and retain the oil on the first side if only water passes from the first side to the second side, and (ii) receive and retain the oil on the second side if only oil passes from the first side to the second side. Clean air from the separator device is exhausted through an air outlet to atmosphere, and water is drained through a water outlet to atmosphere.Type: ApplicationFiled: April 30, 2018Publication date: October 31, 2019Inventors: Fred W. Hoffman, Stephen Howe, David W. Perry, Gregory R. Ashley
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Publication number: 20190184333Abstract: An absorbent apparatus is provided for an air dryer purge air cleaner. The absorbent apparatus comprises a volume for containing absorbent material. The absorbent apparatus also comprises absorbent material that is both oleophilic and hydrophobic and is packed in the volume to provide a packed bed of absorbent material with a predetermined packing density.Type: ApplicationFiled: December 18, 2017Publication date: June 20, 2019Inventors: Stephen Howe, David W. Perry
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Publication number: 20190100190Abstract: An effluent processing apparatus is provided for a vehicle air brake charging system. The effluent processing apparatus comprises an inlet port through which effluent from a purge valve of an air dryer can be received and an outlet port. The effluent processing apparatus also comprises a spiral-shaped effluent channel having a portion of decreasing channel width disposed between the inlet port and the outlet port. The spiral-shaped effluent channel is provided for increasing velocity of an effluent stream as the effluent stream flows through the decreasing channel width portion of the spiral-shaped effluent channel.Type: ApplicationFiled: September 29, 2017Publication date: April 4, 2019Inventors: Stephen Howe, David W. Perry, Gregory R. Ashley, Fred W. Hoffman
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Publication number: 20190099705Abstract: An effluent processing apparatus is provided for a vehicle air brake charging system. The effluent processing apparatus comprises an inlet port through which effluent from a purge valve of an air dryer can be received and an outlet port. The effluent processing apparatus further comprises a quadric surface defining an effluent flow chamber that is connected in fluid communication between the inlet port and the outlet port. The quadric surface is provided for extracting contaminants from an effluent stream as the effluent stream flows from the inlet port along the quadric surface to the outlet port.Type: ApplicationFiled: October 4, 2017Publication date: April 4, 2019Inventors: Stephen Howe, David W. Perry, Gregory R. Ashley, Fred W. Hoffman
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Patent number: 8043174Abstract: A fixed support member includes upper and lower horizontal plates, and a movable support member is coupled to the fixed support member for vertical movement. A drive screw extending between the fixed support member upper and lower horizontal plates and coupled to the movable support member for adjusting the position of the movable support member relative to the fixed support member by rotation of the drive screw. A locking plate fixed to a lower surface of the fixed support member lower horizontal plate having an opening receiving a lower end of the drive screw. A drive coupling connected to the lower end of the drive screw has a portion that can be coupled to a torque input device so that a torque applied to the drive coupling can cause rotation of the drive screw. The drive coupling has an upper portion shaped to be received in the locking plate opening to prevent rotation of the drive coupling and drive screw.Type: GrantFiled: July 9, 2008Date of Patent: October 25, 2011Assignee: Gared Holdings, LLCInventors: James J. Connerley, David W. Perry, Jr.
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Publication number: 20100009786Abstract: A fixed support member includes upper and lower horizontal plates, and a movable support member is coupled to the fixed support member for vertical movement. A drive screw extending between the fixed support member upper and lower horizontal plates and coupled to the movable support member for adjusting the position of the movable support member relative to the fixed support member by rotation of the drive screw. A locking plate fixed to a lower surface of the fixed support member lower horizontal plate having an opening receiving a lower end of the drive screw. A drive coupling connected to the lower end of the drive screw has a portion that can be coupled to a torque input device so that a torque applied to the drive coupling can cause rotation of the drive screw. The drive coupling has an upper portion shaped to be received in the locking plate opening to prevent rotation of the drive coupling and drive screw.Type: ApplicationFiled: July 9, 2008Publication date: January 14, 2010Inventors: James J. Connerley, David W. Perry, JR.
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Patent number: 7138181Abstract: A coated glass article which may be heat strengthened with reduced variability in sheet resistance is disclosed. A multi-layer coating is formed on a glass substrate including a barrier applied on the glass substrate, base layer of a substantially undoped metal oxide applied over the barrier layer, and an electrically conductive layer of a doped metal oxide applied directly on the base layer. The same source metal is used for the base layer and the electrically conductive layer.Type: GrantFiled: June 10, 2002Date of Patent: November 21, 2006Assignee: Pilkington North America, Inc.Inventors: Richard J. McCurdy, Steve E. Phillips, David W. Perry, Michel J. Soubeyrand