Patents by Inventor Robert A. Grimmer

Robert A. Grimmer 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: 7550103
    Abstract: An apparatus and method of producing plastic articles comprising preheating a metal mold having a mold contour using infrared heating elements formed to match said mold contour to establish a casting temperature, casting plastic material onto the preheated metal mold surface, fusing the plastic using infrared energy, cooling the metal mold using the change of phase or state of a cooling material and removing the cast plastic article from said metal mold.
    Type: Grant
    Filed: August 15, 2003
    Date of Patent: June 23, 2009
    Assignee: International Automotive Components Group North America, Inc.
    Inventors: Robert A. Grimmer, Dave Syphers, Denis Moore
  • Patent number: 7425294
    Abstract: An apparatus and method of producing plastic articles comprising preheating a metal mold (10) using infrared energy to establish a casting temperature, casting plastic material onto the preheated mold surface, fusing the plastic into a substantially uniform layer using infrared energy, cooling the metal mold using evaporative cooling, and removing the cast plastic article from said metal mold (10).
    Type: Grant
    Filed: October 9, 2002
    Date of Patent: September 16, 2008
    Inventors: Robert A. Grimmer, Dave Syphers, Denis Moore
  • Publication number: 20040113322
    Abstract: An apparatus and method of producing plastic articles comprising preheating a metal mold having a mold contour using infrared heating elements formed to match said mold contour to establish a casting temperature, casting plastic material onto the preheated metal mold surface, fusing the plastic using infrared energy, cooling the metal mold using the change of phase or state of a cooling material and removing the cast plastic article from said metal mold.
    Type: Application
    Filed: August 15, 2003
    Publication date: June 17, 2004
    Inventors: Robert A. Grimmer, Dave Syphers, Denis Moore
  • Publication number: 20040065981
    Abstract: An apparatus and method of producing plastic articles comprising preheating a metal mold (10) using infrared energy to establish a casting temperature, casting plastic material onto the preheated mold surface, fusing the plastic into a substantially uniform layer using infrared energy, cooling the metal mold using evaporative cooling, and removing the cast plastic article from said metal mold (10).
    Type: Application
    Filed: November 17, 2003
    Publication date: April 8, 2004
    Inventors: Robert A Grimmer, Dave Syhers, Denis Moore
  • Patent number: 6410141
    Abstract: Spherical particles having a diameter between 0.007″ and 0.040″ are formed from melt extruded thermo-plastic material suitable for casting on a heated mold surface and melting thereon to form a thin layer of material having a nominal thickness of 0.040″ that is cooled and removed from the mold surface as a part having a porosity less than a visually observable threshold. The process includes the steps of providing microspheres formed of blended and melt extruded thermo-plastic, plasticizers and pigment additives that constitute less than 5% by weight of the blend and shaped as a smooth round spherical particle; providing a heated casting surface and distributing a predetermined charge of such microspheres against the heated casting surface; melting the microspheres as a layer of thermoplastic material having a porosity less than 0.003 inches and thereafter cooling and removing the non-porous layer from the casting surface.
    Type: Grant
    Filed: September 16, 1999
    Date of Patent: June 25, 2002
    Assignee: Davidson Textron Inc.
    Inventor: Robert A. Grimmer
  • Patent number: 5998030
    Abstract: Spherical particles having a diameter between 0.007" and 0.040" are formed from melt extruded thermoplastic material formed of blended and melt extruded thermoplastic and pigment.
    Type: Grant
    Filed: July 25, 1997
    Date of Patent: December 7, 1999
    Assignee: Davidson Textron Inc.
    Inventor: Robert A. Grimmer
  • Patent number: 5654102
    Abstract: Sperhical particles having a diameter between 0.007" and 0.040" are formed from melt extruded thermoplastic material formed of blended and melt extruded thermoplastic and pigment.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: August 5, 1997
    Assignee: Davidson Textron Inc.
    Inventor: Robert A. Grimmer
  • Patent number: 5525274
    Abstract: Spherical particles having a diameter between 0.007" and 0.040" are formed from melt extruded thermoplastic material suitable for casting on a heated mold surface and melting thereon to form a thin layer of material having a nominal thickness of 0.040" that is cooled and removed from the mold surface as a part having a porosity less than a visually observable threshold. The process includes the steps of providing microspheres formed of blended and melt extruded thermoplastic, plasticizers (if necessary) and pigment additives that constitute less than 5% by weight of the blend and shaped as a smooth round spherical particle. The microspheres may then be distributed as predetermined charge of such microspheres against the heated casting surface to melt the microspheres as a layer of thermoplastic material having a porosity less than 0.003 inches and thereafter cooling and removing the non-porous layer from the casting surface.
    Type: Grant
    Filed: June 29, 1994
    Date of Patent: June 11, 1996
    Assignee: Davidson Textron Inc.
    Inventor: Robert A. Grimmer
  • Patent number: 5525284
    Abstract: Spherical particles having a diameter between 0.007" and 0.040" are formed from melt extruded thermoplastic material suitable for casting on a heated mold surface and melting thereon to form a thin layer of material that is cooled and removed from the mold surface as a part having a porosity less than a visually observable threshold. The process includes the steps of providing microspheres formed of blended and melt extruded thermoplastic, plasticizers (if necessary) and pigment additives that constitute less than 5% by weight of the blend and shaped as a smooth round spherical particle. The microspheres may then be distributed as a predetermined charge of such microspheres against the heated casting surface to melt the microspheres as a layer of thermoplastic material having a porosity less than 0.003 inches and thereafter cooling and removing the non-porous layer from the casting surface.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: June 11, 1996
    Assignee: Davidson Textron Inc.
    Inventor: Robert A. Grimmer
  • Patent number: 5389317
    Abstract: An automotive interior trim component is constructed by placing a cast polyvinyl chloride (PVC), vacuum formed or sprayed thermoplastic/thermoset cover stock, or a cloth/fabric outer shell in a closeable mold, spraying a coating of urethane foam forming materials onto a back surface of the shell, closing the mold with a lid so that an insert is held in spaced relation to the shell and clamping the lid shut while the foam forming material react to provide a shaped foam cushion that is between and bonded to the shell and the insert.
    Type: Grant
    Filed: August 19, 1993
    Date of Patent: February 14, 1995
    Assignee: Davidson Textron Inc.
    Inventor: Robert A. Grimmer
  • Patent number: 5238622
    Abstract: A method of producing a molded foam article having an integral skin and a backing layer of foam comprising mixing particles of two polyvinyl compounds one of the compounds having a molecular weight less than that of the other compound and a higher solvating plasticizer than that of the other compound and casting the mixture against a heated mold surface and melting the one compound to flood the interstices of the particles of the other compound and float to the surface of the heated mold to form a skin and wherein the other compound includes foaming constituents to simultaneously form a layer of foam material behind the skin.
    Type: Grant
    Filed: November 22, 1991
    Date of Patent: August 24, 1993
    Assignee: Davidson Textron Inc.
    Inventor: Robert A. Grimmer
  • Patent number: 5042725
    Abstract: A method for recovering vinyl and urethane foam from composite plastic articles for recycling by granulating the article to form separated mixed components destaticizing the separate mixed components to prevent static during cling between foam particles and vinyl shell particles; and directing the destaticized particles through a vibrating fluidized bed to separate the vinyl shell particles and the foam particles.
    Type: Grant
    Filed: August 3, 1990
    Date of Patent: August 27, 1991
    Assignee: Davidson Textron Inc.
    Inventor: Robert A. Grimmer
  • Patent number: 4981876
    Abstract: A process of separating vinyl skin from a foam backing and recovering the separated components by granulating the plastics composite into small chips, mixing the chips with a quantity of water in a vessel to swell and break the cell structure of the foam at the foam/vinyl interface resulting in flotation of the foam bits and sinking of the heavier vinyl bits. The separated foam is recovered by adding additional water to flow the foam material from the mix vessel. The vinyl is then removed from the bottom of the vessel and the separated components are dried for recycling or improved disposal purposes.
    Type: Grant
    Filed: October 13, 1989
    Date of Patent: January 1, 1991
    Assignee: Davidson Textron Inc.
    Inventor: Robert A. Grimmer
  • Patent number: 4923657
    Abstract: A process for molding plastic parts includes the steps of providing two or more colors of pigmented powder particles of thermoplastic material; casting the particles against a heated surface to form non-patterned layers of particles with voids therebetween; heating the layers to form color blended fused fringe zones between the particles which fill the voids to form a solid, multi-colored, three-dimensional article while each particle retains its discrete particle core which maintains each particle's central or original color concentration and which cores have discernible light transmissive properties.
    Type: Grant
    Filed: August 4, 1988
    Date of Patent: May 8, 1990
    Assignee: Davidson Textron Inc.
    Inventors: John C. Gembinski, Robert A. Grimmer, Patricia A. Betzig
  • Patent number: 4784911
    Abstract: Three-dimensional multi-colored plastic parts and a method for manufacturing such parts for automobile interior trim door panels, consoles and instrument panels and the like includes dry cast thermoplastic powder sized in the range of 60-400 microns and with two or more colors of particles mixed for distribution onto a heated mold section with the mixed powder particles being heated to randomly flow at particle margins to form two or more shade tones in a resultant three-dimensional multi-colored textured part of fuzed material.
    Type: Grant
    Filed: July 15, 1986
    Date of Patent: November 15, 1988
    Assignee: Ex-Cell-O Corporation
    Inventors: John C. Gembinski, Robert A. Grimmer, Patricia A. Betzig