Patents by Inventor Wallace J. Hammel

Wallace J. Hammel 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).

  • Floor Covering Containing Polyvinyl Butyral and Method of Making the Same
    Publication number: 20080271840
    Abstract: A floor covering comprising polyvinyl butyral is provided.
    Type: Application
    Filed: April 1, 2008
    Publication date: November 6, 2008
    Inventors: Brian S. Randall, Paul D. Evans, Wallace J. Hammel
  • Process for manufacturing a floor covering having a foamed backing formed from recycled polymeric material
    Patent number: 6860953
    Abstract: The present invention provides a cushioned floor covering having a backing material formed from waste polymeric material and a blowing agent wherein the blowing agent may be activated either before or after the backing material is adhered to the floor covering. The waste polymeric material includes from about 0 to 40 percent aliphatic polyamide material and is granulated, densified and extruded at a temperature that does not exceed the temperature at which the blowing agent would be activated.
    Type: Grant
    Filed: July 21, 2000
    Date of Patent: March 1, 2005
    Assignee: Collins & Aikman Floorcoverings, Inc.
    Inventors: Mark L. Grizzle, Lynn E. Preston, Wallace J. Hammel, Brian S. Randall, Paul D. Evans, Jr.
  • Floor covering with a reinforced foam backing
    Publication number: 20040062903
    Abstract: A reinforced foam backing for a floor covering is presented. The reinforced foam backing comprises a foam layer comprising at least one thermoplastic polymeric material. The foam layer has a plurality of voids substantially uniformly distributed therein. The reinforced foam backing further comprises a reinforcing material adhered to the foam sheet.
    Type: Application
    Filed: September 26, 2002
    Publication date: April 1, 2004
    Inventors: Paul D. Evans, Wallace J. Hammel, Brian S. Randall
  • Method for assembling a reinforced vinyl-backed carpet
    Patent number: 6406574
    Abstract: A method for manufacturing a vinyl-backed carpet is described wherein the carpet is assembled in a single continuous finishing line. The method includes the application of a vinyl plastisol reinforcing layer directly to the back of unfinished woven or tufted carpet material. The method allows the use of a thinner vinyl layer that results in savings in material, processing steps, and energy required for curing.
    Type: Grant
    Filed: November 29, 2000
    Date of Patent: June 18, 2002
    Assignee: Collins & Aikman Floorcoverings, Inc.
    Inventors: Wallace J. Hammel, Paul D. Evans, Jr., Dan E. Mayfield
  • METHOD FOR ASSEMBLING A REINFORCED VINYL-BACKED CARPET
    Publication number: 20020062899
    Abstract: A method for manufacturing a vinyl-backed carpet is described wherein the carpet is assembled in a single continuous finishing line. The method includes the application of a vinyl plastisol reinforcing layer directly to the back of unfinished woven or tufted carpet material. The method allows the use of a thinner vinyl layer that results in savings in material, processing steps, and energy required for curing.
    Type: Application
    Filed: November 29, 2000
    Publication date: May 30, 2002
    Inventors: Wallace J. Hammel, Paul D. Evans, Dan E. Mayfield