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).

  • Publication number: 20160214287
    Abstract: 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: Application
    Filed: January 28, 2015
    Publication date: July 28, 2016
    Inventors: CHARLES K. BUEHLER, DAVID A. OKONSKI, CHRIS OBERLITNER
  • Patent number: 9356493
    Abstract: 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: Grant
    Filed: February 26, 2013
    Date of Patent: May 31, 2016
    Assignee: GM Global Technology Operations LLC
    Inventors: Charles K. Buehler, Nieyuan Hai
  • Patent number: 9212670
    Abstract: 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: Grant
    Filed: February 8, 2012
    Date of Patent: December 15, 2015
    Assignee: GM Global Technology Operations, LLC
    Inventors: Edward W. Mellet, Carlos E. Marin, Charles K. Buehler, James B. Borgerson, Leonid Basin, Philip C. Lundberg, Glenn E. Clever, Gary H. Paelicke
  • Patent number: 9091187
    Abstract: 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: Grant
    Filed: February 4, 2013
    Date of Patent: July 28, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Glenn E. Clever, Charles K. Buehler
  • Patent number: 9056441
    Abstract: 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: Grant
    Filed: January 30, 2012
    Date of Patent: June 16, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Catherine A. Ostrander, Joel Colombo, Mary K. Gusie, Kitty L. Gong, Charles K. Buehler, Michael P. Balogh
  • Patent number: 8967110
    Abstract: 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: Grant
    Filed: November 16, 2012
    Date of Patent: March 3, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Charles K. Buehler, David R. Staley, Thomas A. Spix
  • Publication number: 20140239753
    Abstract: 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: Application
    Filed: February 26, 2013
    Publication date: August 28, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Charles K. Buehler, Nieyuan Hai
  • Publication number: 20140216378
    Abstract: 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: Application
    Filed: February 4, 2013
    Publication date: August 7, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Glenn E. Clever, Charles K. Buehler
  • Publication number: 20140137833
    Abstract: 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: Application
    Filed: November 16, 2012
    Publication date: May 22, 2014
    Applicant: GM Global Technology Operations LLC
    Inventors: Charles K. BUEHLER, David R. STALEY, Thomas A. SPIX
  • Publication number: 20140120273
    Abstract: A display emblem may comprise a metallized layer, a decoration layer, and at least one moisture impermeable layer.
    Type: Application
    Filed: October 25, 2012
    Publication date: May 1, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Joel Colombo, Charles K. Buehler, Catherine A. Ostrander, Michael P. Balogh, Kitty L. Gong, Kevin L. Lid
  • Patent number: 8677968
    Abstract: 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: Grant
    Filed: September 15, 2011
    Date of Patent: March 25, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Glenn E. Clever, Charles K. Buehler
  • Publication number: 20130209687
    Abstract: 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: Application
    Filed: February 10, 2012
    Publication date: August 15, 2013
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Charles K. Buehler, Stuart J. Brown
  • Publication number: 20130199648
    Abstract: 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: Application
    Filed: February 8, 2012
    Publication date: August 8, 2013
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Edward W. Mellet, Carlos E. Marin, Charles K. Buehler, James B. Borgerson, Leonid Basin, Philip C. Lundberg, Glenn E. Clever, Gary H. Paelicke
  • Publication number: 20130196089
    Abstract: 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: Application
    Filed: January 30, 2012
    Publication date: August 1, 2013
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Catherine A. Ostrander, Joel Colombo, Mary K. Gusie, Kitty L. Gong, Charles K. Buehler, Michael P. Balogh
  • Publication number: 20130177729
    Abstract: 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: Application
    Filed: January 5, 2012
    Publication date: July 11, 2013
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Catherine A. Ostrander, Kitty L. Gong, Charles K. Buehler, Chris A. Oberlitner
  • Publication number: 20130126078
    Abstract: 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: Application
    Filed: November 23, 2011
    Publication date: May 23, 2013
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Catherine A. Ostrander, Kitty L. Gong, Charles K. Buehler, Chris A. Oberlitner
  • Publication number: 20130068187
    Abstract: 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: Application
    Filed: September 15, 2011
    Publication date: March 21, 2013
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Glenn E. Clever, Charles K. Buehler
  • Publication number: 20100092790
    Abstract: 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: Application
    Filed: October 14, 2008
    Publication date: April 15, 2010
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Aihua A. Luo, William R. Rodgers, Charles K. Buehler
  • Patent number: 7645416
    Abstract: 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: Grant
    Filed: August 22, 2006
    Date of Patent: January 12, 2010
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Charles K. Buehler, Charles C. Mentzer, Michael P. Balogh, Catherine A. Ostrander, Steven J. Schmidt
  • Patent number: 7390454
    Abstract: 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: Grant
    Filed: August 19, 2004
    Date of Patent: June 24, 2008
    Assignee: General Motors Corporation
    Inventors: Catherine A. Ostrander, Steven J. Schmidt, Charles Calvin Mentzer, Jr., Michael A. Szymberski, Charles K. Buehler