Patents by Inventor Robert Adam Riggs

Robert Adam Riggs 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).

  • TRACEABLE GASKET AND COMPRESSION PACKING MATERIAL
    Publication number: 20230160471
    Abstract: A material that includes traceable particles that retain information about the fabrication of the material, which can be used to trace the origin thereof. The material may form gaskets, which are used to seal flanged joints in the food and beverage industry, and compression packings, which are used for sealing near valve stems, pump shafts, and similar machines.
    Type: Application
    Filed: January 24, 2023
    Publication date: May 25, 2023
    Inventors: Carlos Daniel Braga Girao BARROSO, Christopher Louis DAY, Jose Carlos Carvalho VEIGA, Josmar Baruffaldi CRISTELLO, Robert Adam RIGGS, André Carlos de Azevedo VALLE
  • Seamless corrugated insert gasket and method of forming the same
    Patent number: 8066843
    Abstract: The invention relates to a seamless hybrid gasket and the method of making the same. The gasket includes a unitary polymer construction and an insert for enhanced pressure resistance, reduced stress to seal, improved thermal cycling performance and structural support.
    Type: Grant
    Filed: October 21, 2008
    Date of Patent: November 29, 2011
    Assignee: Virginia Sealing Products, Inc.
    Inventors: Tyler Hamilton Ragsdale, Robert Adam Riggs, Alfred F. Waterland, III
  • SEAMLESS CORRUGATED INSERT GASKET AND METHOD OF FORMING THE SAME
    Publication number: 20090044904
    Abstract: The invention relates to a seamless hybrid gasket and the method of making the same. The gasket includes a unitary polymer construction and an insert for enhanced pressure resistance, reduced stress to seal, improved thermal cycling performance and structural support.
    Type: Application
    Filed: October 21, 2008
    Publication date: February 19, 2009
    Applicant: Virginia Sealing Products, Inc.
    Inventors: Tyler Hamilton Ragsdale, Robert Adam Riggs, Alfred F. Waterland, III
  • Seamless corrugated insert gasket and method of forming the same
    Patent number: 7455301
    Abstract: The invention relates to a seamless hybrid gasket and the method of making the same. The gasket includes a unitary polymer construction and an insert for enhanced pressure resistance, reduced stress to seal, improved thermal cycling performance and structural support.
    Type: Grant
    Filed: March 2, 2006
    Date of Patent: November 25, 2008
    Assignee: Virginia Sealing Products, Inc.
    Inventors: Tyler Hamilton Ragsdale, Robert Adam Riggs, Alfred F. Waterland, III
  • Manway cover gasket
    Patent number: 6824140
    Abstract: The manway cover has a groove into which a gasket is adapted to be mounted. The groove has an inside diameter. The gasket has an annular metal insert having a top surface and bottom surface, and an inside edge and an outside edge and corresponding inside and outside diameters. A polymer strip is wrapped around and substantially covers the top and bottom surfaces of the metal insert. The polymer strip further has an overlap portion where the polymer strip is folded over and attached to itself, this overlap defining an inside diameter and/or outside diameter of the gasket. The inside diameter of the metal insert is no less than substantially the same as the inside diameter of the manway cover groove. The inside diameter of the gasket is less than the inside diameter of the metal insert.
    Type: Grant
    Filed: December 10, 2002
    Date of Patent: November 30, 2004
    Inventors: James E. B. Frew, Robert Adam Riggs, Alfred F. Waterland, III
  • Manway cover gasket
    Publication number: 20040108660
    Abstract: The manway cover has a groove into which a gasket is adapted to be mounted. The groove has an inside diameter. The gasket has an annular metal insert having a top surface and bottom surface, and an inside edge and an outside edge and corresponding inside and outside diameters. A polymer strip is wrapped around and substantially covers the top and bottom surfaces of the metal insert. The polymer strip further has an overlap portion where the polymer strip is folded over and attached to itself, this overlap defining an inside diameter and/or outside diameter of the gasket. The inside diameter of the metal insert is no less than substantially the same as the inside diameter of the manway cover groove. The inside diameter of the gasket is less than the inside diameter of the metal insert.
    Type: Application
    Filed: December 10, 2002
    Publication date: June 10, 2004
    Inventors: James E. B. Frew, Robert Adam Riggs, Alfred F. Waterland