Patents by Inventor Charles H. Covert
Charles H. Covert 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).
-
Patent number: 7476269Abstract: An evaporative emissions control canister for adsorbing fuel vapors from a fuel tank on a marine vessel. The canister comprises a polymeric extruded housing that may be formed to any desired length or cut from extruded stock. Identical end caps having tubing connectors are bonded to opposite ends of the housing, defining an inlet and an outlet. Marine-grade pelletized activated carbon is disposed within the housing between porous slidable plates that are spring loaded against the end caps to pack the carbon tightly against the housing walls. Mounting brackets at each end are rotatably attached to the end caps so that opposite ends of the assembly may be attached to different surfaces of the vessel's hull, thus relieving stress which might be introduced into the assembly. Preferably, the assembly is wrapped in a fire retardant material.Type: GrantFiled: December 2, 2005Date of Patent: January 13, 2009Assignee: Delphi Technologies, Inc.Inventors: Chris C. Begley, Charles H. Covert
-
Patent number: 7160361Abstract: Disclosed herein an evaporative emission treatment device comprising: a housing; and an adsorption member disposed in the housing, the adsorption member comprising an adsorption component comprising an activated carbon textile made from a novoloid precursor.Type: GrantFiled: December 5, 2003Date of Patent: January 9, 2007Assignee: Delphi Technologies, Inc.Inventors: Thomas C. Meiller, Charles H. Covert, Robert A. Zaso, Jonathan M. Oemcke, Christopher S. Tupps
-
Patent number: 7118716Abstract: A hydrocarbon emissions scrubber for use in an evaporative emissions control system of a motor vehicle includes a scrubber element having an elongate body. The body defines a plurality of passageways for the flow of fluid therethrough. The plurality of passageways are one of coated with or constructed of a sorbent material. The sorbent material is adsorptive of hydrocarbons.Type: GrantFiled: January 12, 2005Date of Patent: October 10, 2006Assignee: Delphi Technologies, INCInventors: Thomas C. Meiller, Charles H. Covert, Susan S. LaBine
-
Patent number: 7077111Abstract: A variable purge orifice assembly for an evaporative emission system of a vehicle includes a housing for fluid connection to a vapor canister and a purge solenoid of the evaporative emission system. The housing has a purge orifice therein. The variable purge orifice assembly also includes a regulating device connected to the housing and for connection to an engine of the vehicle. The regulating device is actuated by manifold vacuum from the engine to vary flow of fuel vapor through the purge orifice from the vapor canister to the purge solenoid.Type: GrantFiled: June 16, 2004Date of Patent: July 18, 2006Assignee: Delphi Technologies, Inc.Inventors: William R. Robertson, Charles H. Covert, Gordon R. Paddock
-
Patent number: 6896852Abstract: A hydrocarbon emissions scrubber for use in an evaporative emissions control system of a motor vehicle includes a scrubber element having an elongate body. The body defines a plurality of passageways for the flow of fluid therethrough. The plurality of passageways are one of coated with or constructed of a sorbent material. The sorbent material is adsorptive of hydrocarbons.Type: GrantFiled: October 26, 2000Date of Patent: May 24, 2005Assignee: Delphi Technologies, Inc.Inventors: Thomas C. Meiller, Charles H. Covert, Susan S. LaBine
-
Patent number: 6537354Abstract: A valve assembly for a vapor canister includes a partition adapted to be disposed in an interior chamber of the vapor canister and having at least one opening extending therethrough. The valve assembly also includes a valve connected to the partition and covering the at least one opening and being movable to provide variable flow of fluid therethrough.Type: GrantFiled: July 31, 2001Date of Patent: March 25, 2003Assignee: Delphi Technologies, Inc.Inventors: Thomas C. Meiller, Gregory P. Weilnau, Charles H. Covert
-
Publication number: 20030024397Abstract: A valve assembly for a vapor canister includes a partition adapted to be disposed in an interior chamber of the vapor canister and having at least one opening extending therethrough. The valve assembly also includes a valve connected to the partition and covering the at least one opening and being movable to provide variable flow of fluid therethrough.Type: ApplicationFiled: July 31, 2001Publication date: February 6, 2003Inventors: Thomas C. Meiller, Gregory P. Weilnau, Charles H. Covert
-
Publication number: 20020073847Abstract: A monolith for use in an evaporative emissions hydrocarbon scrubber is disclosed. The monolith, which is concentrically disposed with a shell, has at least one cell group disposed around at least two individual cells, such that the cell group comprises at least three thick walls. The individual cells comprise at least on thin wall, with the thick walls being thicker than the thin wall. A method for using the evaporative emissions hydrocarbon scrubber is also disclosed.Type: ApplicationFiled: December 15, 2000Publication date: June 20, 2002Inventors: Matthew R. Sheline, Charles H. Covert, Susan LaBine, Jonathan M. Oemoke, Eileen A. Scardino
-
Patent number: 5462100Abstract: A refueling vapor recovery system for a vehicle utilizes recirculation of a portion of the displaced vapor and combines a vapor vent valve and a recirculation control into a single differential pressure valve assembly. A vapor vent conduit provides fuel tank vapor pressure to one side of a diaphragm and, through a restricted orifice, to the other side of the diaphragm, the other side being further connected by a recirculation conduit to the tank filler neck. When a gas cap closes the filler neck from the atmosphere, the orifice allows pressure to equalize across the diaphragm; and a spring biases the diaphragm to close a vapor vent valve.Type: GrantFiled: August 31, 1994Date of Patent: October 31, 1995Assignee: General Motors CorporationInventors: Charles H. Covert, Richard W. Wagner, Kenneth W. Turner, Karen M. Meyer
-
Patent number: 5289811Abstract: A purge control device for an evaporative control system comprises a single housing having two solenoid actuated valves controlling parallel orifices leading from an inlet chamber to an exit flow path. The two solenoid valves have different sized orifices to provide different flow capacities. Purge flow is controlled by an electronic control module which regulates the duty cycle of the solenoids. Each valve receives its own signal so that the flow through the orifices is individually controlled.Type: GrantFiled: May 10, 1993Date of Patent: March 1, 1994Assignee: General Motors CorporationInventors: Charles H. Covert, Joseph Fornuto, William E. Gifford, Otto Muller-Girard, Jr., Gordon R. Paddock
-
Patent number: 5119791Abstract: A vapor storage canister incorporates a liquid trap that protects the carbon bed, but which avoids purging liquid directly out of the trap. The trap consists of a cup that forms an interior cavity at the bottom of, and surrounded by, the carbon bed. The purge tube does not enter the trap directly, but instead runs to a plenum that draws from the bottom face of the carbon bed. The trap, in turn, is open to the interior of the carbon bed only through a screen mesh grid. Consequently, vapor can be pulled from the trap at purge, but not liquid.Type: GrantFiled: June 7, 1991Date of Patent: June 9, 1992Assignee: General Motors CorporationInventors: William E. Gifford, Otto M. Girard, Jr., Charles H. Covert, Samuel Yu, Gordon R. Paddock, Richard H. Simons, Jr.
-
Patent number: 5054520Abstract: A tank mounted vapor vent valve is actuated from the filler door by a pair of bellows, a primary bellows operated by the filler door, and a secondary bellows moved by the primary bellows to open and close the valve, joined only by a flexible, easily routed air hose.Type: GrantFiled: April 25, 1990Date of Patent: October 8, 1991Assignee: General Motors CorporationInventors: Carl H. Sherwood, Kenneth W. Turner, Patti S. DuBois, Charles H. Covert
-
Patent number: 5014742Abstract: A tank vapor vent valve assembly mounted to the top of the tank wall has a piston actuated by a source of engine vacuum which maintains a fill vapor exit closed until the gas cap is removed to relieve the vacuum and allow the piston to open.Type: GrantFiled: April 5, 1990Date of Patent: May 14, 1991Assignee: General Motors CorporationInventors: Charles H. Covert, Kenneth W. Turner, Carl H. Sherwood, William E. Gifford, Richard W. Wagner
-
Patent number: 4946060Abstract: A seal assembly for a vehicle fuel tank filler neck includes a seal lip bordered by a seal casing rim on one side, and a shelf of the filler neck on the other, so as to protect the seal lip against side loading from the nozzle that it seals against.Type: GrantFiled: July 31, 1989Date of Patent: August 7, 1990Assignee: General Motors CorporationInventors: Carl H. Sherwood, Karen M. Meyer, Charles H. Covert, Gregory P. Weilnau
-
Patent number: 4917157Abstract: A tank vapor vent valve assembly uses a spring loaded sealing flapper door located below a normally open float chamber. The flapper door spring is specifically designed to open when the tank pressure falls, allowing make up air to pull the flapper door down and draw in make up air through the canister inlet.Type: GrantFiled: February 27, 1989Date of Patent: April 17, 1990Assignee: General Motors CorporationInventors: William E. Gifford, Carl H. Sherwood, Charles H. Covert, Kenneth W. Turner
-
Patent number: 4893643Abstract: A TVVA with a buoyant overfill protection float contains the float closely and axially slidably within a sleeve, and feeds a negative pressure created by the rapid flow of fill vapors over the outside of the sleeve into the sleeve to hold the float down and prevent it from corking.Type: GrantFiled: February 27, 1989Date of Patent: January 16, 1990Assignee: General Motors CorporationInventors: William E. Gifford, Carl H. Sherwood, Charles H. Covert, Kenenth W. Turner
-
Patent number: 4894072Abstract: A canister is divided into small and large bed portions, with the small portion being loaded separately with just diurnal vapors so that it can be purged with a greater efficiency. At fuel fill, both bed portions are loaded simultaneously with a proportion of fuel fill vapors keyed to their own volume ratio, so that an effective capacity equal to the sum of the two is achieved.Type: GrantFiled: March 27, 1989Date of Patent: January 16, 1990Assignee: General Motors CorporationInventors: Kenneth W. Turner, Charles H. Covert, Patti S. DuBois
-
Patent number: 4852761Abstract: A specially designed vapor storage canister may be placed within the interior volume of a fuel tank, eliminating the need for a tank to canister vapor line and shortening the TVVA to canister vapor line, while still protecting the adsorbent bed against contamination by liquid fuel.Type: GrantFiled: July 25, 1988Date of Patent: August 1, 1989Assignee: General Motors CorporationInventors: Kenneth W. Turner, Charles H. Covert, Karen M. Meyer
-
Patent number: 4732588Abstract: A fuel vapor storage canister includes a vapor inlet for introducing vapor into the canister and a bed of adsorbant material in fluid communication with the inlet for adsorbing vapor within the canister. A vapor purge tube is in fluid communication with the bed for purging fuel vapor from the bed. A thermoelectric cooler/heater selectively cools the inlet tube to promote condensation of vapors therein and selectively and alternatively heats the bed to promote purging of vapors from the bed and the remainder of the canister.Type: GrantFiled: May 14, 1987Date of Patent: March 22, 1988Assignee: General Motors CorporationInventors: Charles H. Covert, William E. Gifford, Edwin C. Storey
-
Patent number: RE34518Abstract: A tank vapor vent valve assembly mounted to the top of the tank wall has a piston actuated by a source of engine vacuum which maintains a fill vapor exit closed until the gas cap is removed to relieve the vacuum and allow the piston to open.Type: GrantFiled: June 26, 1992Date of Patent: January 25, 1994Assignee: General Motors CorporationInventors: Charles H. Covert, Kenneth W. Turner, Carl H. Sherwood, William E. Gifford, Richard W. Wagner