Patents by Inventor Charles K. Buehler
Charles K. Buehler 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: 20160214287Abstract: A number of variations may include a product comprising: component structure having at least one surface and at least one protrusion, wherein the component structure comprises a thermoplastic polymer material and a filler, and wherein the surface and protrusion are constructed and arranged such that the component structure is substantially free of sink.Type: ApplicationFiled: January 28, 2015Publication date: July 28, 2016Inventors: CHARLES K. BUEHLER, DAVID A. OKONSKI, CHRIS OBERLITNER
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Patent number: 9356493Abstract: A motor housing assembly is formed by positioning a stator relative to a motor housing to configure a fillable gap between the stator and the motor housing, and filling the fillable gap is at least partially with a polymeric material to form a thermally conductive layer. The polymeric material may include a metallic filler material. The thermally conductive layer is in contact with an exterior surface of the stator and an interior surface of the motor housing adjacent the exterior surface of the stator, and is configured to cover at least half of the exterior surface. A method to form the thermally conductive layer includes injecting a high flow polymeric material through a port defined by the housing and in fluid communication with the fillable gap.Type: GrantFiled: February 26, 2013Date of Patent: May 31, 2016Assignee: GM Global Technology Operations LLCInventors: Charles K. Buehler, Nieyuan Hai
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Patent number: 9212670Abstract: A composite accumulator includes a base having a closed end and an open end, the base having an inner surface that defines a cavity and having a fluid port in communication with the cavity for communicating a hydraulic fluid in and out of the cavity. A cover is disposed over the open end of the base and is secured to the base by a fastener. A piston is disposed within the base and the cover. The piston is sealed to the inner surface of the cover and is translatable along an axis. A biasing member is disposed within the base and the cover and located axially between the piston and the cover. The base and the cover are plastic.Type: GrantFiled: February 8, 2012Date of Patent: December 15, 2015Assignee: GM Global Technology Operations, LLCInventors: Edward W. Mellet, Carlos E. Marin, Charles K. Buehler, James B. Borgerson, Leonid Basin, Philip C. Lundberg, Glenn E. Clever, Gary H. Paelicke
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Patent number: 9091187Abstract: An assembly clip for holding together a stationary hydraulic lash adjuster (SHLA) and a roller finger follower (RFF) in a valve train of an internal combustion engine (ICE) is provided. The SHLA has a pivot, and the RFF has a pivot cap configured to fit around the pivot. The assembly clip includes a first attachment section and a second attachment section configured to engage with the pivot cap and pivot, respectively, to attach the assembly clip to the RFF and SHLA, respectively. When assembled, the pivot and the pivot end are substantially located between the first attachment section and the second attachment section, the pivot cap covering at least a portion of the pivot. The assembly clip is made of an oil soluble material such that it may dissolve and break away after the valve train is assembled into the ICE, and the assembly clip no longer serves a function.Type: GrantFiled: February 4, 2013Date of Patent: July 28, 2015Assignee: GM Global Technology Operations LLCInventors: Glenn E. Clever, Charles K. Buehler
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Patent number: 9056441Abstract: A method of forming an emblem assembly configured for attachment to a vehicle includes positioning a mask adjacent and in contact with a second element so that the mask covers only a selected portion of the second element and does not cover an exposed portion of the second element. The method includes vacuum metalizing a first coating onto only the exposed portion, wherein the first coating has a distal edge surface abutting the mask, and, after vacuum metalizing, removing the mask from the second element to uncover the selected portion. The method includes depositing a back coating onto only the first coating and the selected portion to thereby wrap the back coating around the distal edge surface, and, after depositing, inserting the second element into a first element configured for attachment to the vehicle so that the first coating does not contact the first element to form the assembly.Type: GrantFiled: January 30, 2012Date of Patent: June 16, 2015Assignee: GM Global Technology Operations LLCInventors: Catherine A. Ostrander, Joel Colombo, Mary K. Gusie, Kitty L. Gong, Charles K. Buehler, Michael P. Balogh
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Patent number: 8967110Abstract: An engine front cover assembly includes a plastic engine cover. A metal insert is secured within the plastic engine cover and defines a bore configured to receive a rotating engine component. A seal is located in a seal seat defined within the bore of the metal insert and configured to sealingly engage the rotating engine component. The metal insert is overmolded within the plastic engine cover and serves as a datum point to properly locate the seal relative to the rotating engine component.Type: GrantFiled: November 16, 2012Date of Patent: March 3, 2015Assignee: GM Global Technology Operations LLCInventors: Charles K. Buehler, David R. Staley, Thomas A. Spix
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Publication number: 20140239753Abstract: A motor housing assembly is formed by positioning a stator relative to a motor housing to configure a fillable gap between the stator and the motor housing, and filling the fillable gap is at least partially with a polymeric material to form a thermally conductive layer. The polymeric material may include a metallic filler material. The thermally conductive layer is in contact with an exterior surface of the stator and an interior surface of the motor housing adjacent the exterior surface of the stator, and is configured to cover at least half of the exterior surface. A method to form the thermally conductive layer includes injecting a high flow polymeric material through a port defined by the housing and in fluid communication with the fillable gap.Type: ApplicationFiled: February 26, 2013Publication date: August 28, 2014Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Charles K. Buehler, Nieyuan Hai
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Publication number: 20140216378Abstract: An assembly clip for holding together a stationary hydraulic lash adjuster (SHLA) and a roller finger follower (RFF) in a valve train of an internal combustion engine (ICE) is provided. The SHLA has a pivot, and the RFF has a pivot cap configured to fit around the pivot. The assembly clip includes a first attachment section and a second attachment section configured to engage with the pivot cap and pivot, respectively, to attach the assembly clip to the RFF and SHLA, respectively. When assembled, the pivot and the pivot end are substantially located between the first attachment section and the second attachment section, the pivot cap covering at least a portion of the pivot. The assembly clip is made of an oil soluble material such that it may dissolve and break away after the valve train is assembled into the ICE, and the assembly clip no longer serves a function.Type: ApplicationFiled: February 4, 2013Publication date: August 7, 2014Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Glenn E. Clever, Charles K. Buehler
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Publication number: 20140137833Abstract: An engine front cover assembly includes a plastic engine cover. A metal insert is secured within the plastic engine cover and defines a bore configured to receive a rotating engine component. A seal is located in a seal seat defined within the bore of the metal insert and configured to sealingly engage the rotating engine component. The metal insert is overmolded within the plastic engine cover and serves as a datum point to properly locate the seal relative to the rotating engine component.Type: ApplicationFiled: November 16, 2012Publication date: May 22, 2014Applicant: GM Global Technology Operations LLCInventors: Charles K. BUEHLER, David R. STALEY, Thomas A. SPIX
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Publication number: 20140120273Abstract: A display emblem may comprise a metallized layer, a decoration layer, and at least one moisture impermeable layer.Type: ApplicationFiled: October 25, 2012Publication date: May 1, 2014Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Joel Colombo, Charles K. Buehler, Catherine A. Ostrander, Michael P. Balogh, Kitty L. Gong, Kevin L. Lid
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Patent number: 8677968Abstract: A shaft assembly includes a shaft, a spacer and a cover. The body of the shaft includes a sealing portion, a balancing portion and a hollow portion which may collectively define a generally cylindrical space. The spacer substantially encloses the hollow portion of the body. The cover encapsulates the shaft body and the spacer to provide a substantially continuous cylindrical surface in sealing engagement with the sealing portion. The shaft assembly may be rotatably installed in an engine such that the balancing portion may be partially submerged in an oil bath in the engine and such that the substantially continuous cylindrical surface of the cover minimizes turbulence and aeration of the oil bath when the shaft assembly is rotated. The shaft may be configured for rotation in synchrony with a crankshaft. A method for encapsulating the shaft includes forming a continuous cylindrical surface in sealing engagement with the shaft body.Type: GrantFiled: September 15, 2011Date of Patent: March 25, 2014Assignee: GM Global Technology Operations LLCInventors: Glenn E. Clever, Charles K. Buehler
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Publication number: 20130209687Abstract: A process for treating a plastic part to improve the adhesion of paint comprises first treating the surface of the part with sulfur trioxide and thereafter treating the surface with ammonium.Type: ApplicationFiled: February 10, 2012Publication date: August 15, 2013Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Charles K. Buehler, Stuart J. Brown
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Publication number: 20130199648Abstract: A composite accumulator includes a base having a closed end and an open end, the base having an inner surface that defines a cavity and having a fluid port in communication with the cavity for communicating a hydraulic fluid in and out of the cavity. A cover is disposed over the open end of the base and is secured to the base by a fastener. A piston is disposed within the base and the cover. The piston is sealed to the inner surface of the cover and is translatable along an axis. A biasing member is disposed within the base and the cover and located axially between the piston and the cover. The base and the cover are plastic.Type: ApplicationFiled: February 8, 2012Publication date: August 8, 2013Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Edward W. Mellet, Carlos E. Marin, Charles K. Buehler, James B. Borgerson, Leonid Basin, Philip C. Lundberg, Glenn E. Clever, Gary H. Paelicke
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Publication number: 20130196089Abstract: A method of forming an emblem assembly configured for attachment to a vehicle includes positioning a mask adjacent and in contact with a second element so that the mask covers only a selected portion of the second element and does not cover an exposed portion of the second element. The method includes vacuum metalizing a first coating onto only the exposed portion, wherein the first coating has a distal edge surface abutting the mask, and, after vacuum metalizing, removing the mask from the second element to uncover the selected portion. The method includes depositing a back coating onto only the first coating and the selected portion to thereby wrap the back coating around the distal edge surface, and, after depositing, inserting the second element into a first element configured for attachment to the vehicle so that the first coating does not contact the first element to form the assembly.Type: ApplicationFiled: January 30, 2012Publication date: August 1, 2013Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Catherine A. Ostrander, Joel Colombo, Mary K. Gusie, Kitty L. Gong, Charles K. Buehler, Michael P. Balogh
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Publication number: 20130177729Abstract: A method of forming an article attachable to an exterior surface of a vehicle includes heating a thermoplastic system to form a workpiece. The thermoplastic system includes a substrate having an end surface, and a film disposed on the substrate and having a distal surface adjoining the end surface. The workpiece has a first surface adjoining the distal surface to define a distal edge, and a second surface spaced opposite the first surface and adjoining the end surface to define a proximal edge between the second and end surfaces. The method includes disposing the workpiece between a mold surface and a pressure surface. After disposing, the method includes conforming the first surface to one of the pressure and mold surfaces to form a preform, and depositing an injection-moldable polymer onto the preform to form a protective layer thereon that contacts and covers the distal surface. An article is also disclosed.Type: ApplicationFiled: January 5, 2012Publication date: July 11, 2013Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Catherine A. Ostrander, Kitty L. Gong, Charles K. Buehler, Chris A. Oberlitner
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Publication number: 20130126078Abstract: A method of forming an article attachable to an exterior surface of a vehicle includes heating a thermoplastic system to form a preform. The preform has a first surface having an initial distinctness of image and an initial gloss, and a second surface spaced opposite from the first. The method also includes disposing the preform between a mold surface and a pressure surface spaced apart from the mold surface so that the first surface faces the mold surface, and the second surface faces the pressure surface. Further, the first surface and the mold surface define a first cavity therebetween, and the second surface and the pressure surface define a second cavity therebetween. After disposing, the method includes conforming the first surface to the mold surface to thereby form the article, wherein the article has the initial distinctness of image and the initial gloss.Type: ApplicationFiled: November 23, 2011Publication date: May 23, 2013Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Catherine A. Ostrander, Kitty L. Gong, Charles K. Buehler, Chris A. Oberlitner
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Publication number: 20130068187Abstract: A shaft assembly includes a shaft, a spacer and a cover. The body of the shaft includes a sealing portion, a balancing portion and a hollow portion which may collectively define a generally cylindrical space. The spacer substantially encloses the hollow portion of the body. The cover encapsulates the shaft body and the spacer to provide a substantially continuous cylindrical surface in sealing engagement with the sealing portion. The shaft assembly may be rotatably installed in an engine such that the balancing portion may be partially submerged in an oil bath in the engine and such that the substantially continuous cylindrical surface of the cover minimizes turbulence and aeration of the oil bath when the shaft assembly is rotated. The shaft may be configured for rotation in synchrony with a crankshaft. A method for encapsulating the shaft includes forming a continuous cylindrical surface in sealing engagement with the shaft body.Type: ApplicationFiled: September 15, 2011Publication date: March 21, 2013Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Glenn E. Clever, Charles K. Buehler
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Publication number: 20100092790Abstract: Hybrid articles comprising a molded mixture of a light metal alloy and a polymer are formed by processing (including co-molding and co-extruding) the metal in a semi-solid state at a high shear rate and the polymer in a melt processable state. For example, magnesium alloy particles in a thixotropic condition are mixed with particles or globules of the polymer and molded into a hybrid metal-containing and polymer-containing body. The proportions of magnesium and polymer may be varied substantially depending on the desired properties of the hybrid article. In another embodiment the light metal and polymer may be co-extruded as two or more distinct layers into a solid or hollow hybrid body.Type: ApplicationFiled: October 14, 2008Publication date: April 15, 2010Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Aihua A. Luo, William R. Rodgers, Charles K. Buehler
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Patent number: 7645416Abstract: A thermoforming methodology for laminated thermoplastic sheets which preserves the class “A” finish and high gloss thereof. In a thermoforming process including heating followed by vacuum and opposing air pressure application, and then followed by application of chilled compressed air, control of spherulite formation using any of: addition of a nucleating agent to the paint film, using the chilled compressed air at a temperature of substantially about 32° F., heating to no more than about 311° F., selecting a paint film having a high melting point temperature, and selecting a paint film that is non-crystalline.Type: GrantFiled: August 22, 2006Date of Patent: January 12, 2010Assignee: GM Global Technology Operations, Inc.Inventors: Charles K. Buehler, Charles C. Mentzer, Michael P. Balogh, Catherine A. Ostrander, Steven J. Schmidt
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Patent number: 7390454Abstract: A thermoforming methodology for laminated thermoplastic sheets which preserves the class “A” finish and high gloss thereof. A thermoformer has a vacuum box component which includes a mold, and a pressure box component which is selectively sealable in relation to the vacuum box component. A heated laminated thermoplastic sheet is placed in the thermoformer, the class “A” side thereof facing away from the mold, and the thermoformer sealed. Vacuum is applied to the vacuum box component and simultaneously air pressure is applied to the pressure box component, including application of chilled compressed air, resulting in forming of the sheet on the mold and controlled cooling of the sheet which preserves its class “A” finish and high gloss.Type: GrantFiled: August 19, 2004Date of Patent: June 24, 2008Assignee: General Motors CorporationInventors: Catherine A. Ostrander, Steven J. Schmidt, Charles Calvin Mentzer, Jr., Michael A. Szymberski, Charles K. Buehler