Patents by Inventor John D. Morvant

John D. Morvant 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).

  • Rubber and wire mesh ring
    Patent number: 6863278
    Abstract: A back-up ring is disclosed wherein the ring is a knitted mesh section substantially surrounded by an outer coating covering substantially all of the knitted wire mesh section, the coating having contact with the outer and inner surface of an annulus.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: March 8, 2005
    Inventor: John D. Morvant
  • Rubber and wire mesh ring
    Publication number: 20030090067
    Abstract: A back-up ring is disclosed wherein the ring is a knitted mesh section substantially surrounded by an outer coating covering substantially all of the knitted wire mesh section, the coating having contact with the outer and inner surface of an annulus.
    Type: Application
    Filed: December 23, 2002
    Publication date: May 15, 2003
    Inventor: John D. Morvant
  • Wire inserted non-extrusion ring
    Patent number: 6497416
    Abstract: A back-up ring is disclosed wherein the ring is a knitted mesh section substantially surrounded by an outer coating covering substantially all of the knitted wire mesh section, the coating having contact with the outer and inner surface of an annulus.
    Type: Grant
    Filed: December 17, 1996
    Date of Patent: December 24, 2002
    Inventor: John D. Morvant
  • V-shaped seal with anti-extrusion section
    Patent number: 6267383
    Abstract: A sealing-device having a body section and an anti-extrusion section is shown, the body section being disposed on top of the anti-extrusion section. The body section includes sealing surfaces for enclosures in which the sealing device is located. the anti-extrusion section prevents extrusion of the body section.
    Type: Grant
    Filed: December 30, 1997
    Date of Patent: July 31, 2001
    Inventor: John D. Morvant
  • Rubber encapsulated vee ring seal
    Patent number: 5615896
    Abstract: A seal ring and a stack of seal are disclosed wherein each seal has a knitted mesh section substantially surrounded by an outer coating covering substantially all of the knitted wire mesh section, the coating forming raised sealing surfaces to form interference seals with the outer and inner surface of an annulus. The stack includes spacing between seals in the stack to prevent damage to the sealing surfaces of succeeding seals in the stack. The stack may be bidirectional.
    Type: Grant
    Filed: December 22, 1993
    Date of Patent: April 1, 1997
    Inventor: John D. Morvant
  • Pack off seal
    Patent number: 5551703
    Abstract: A sealing device having a body section and two anti-extrusion sections is disclosed, the body section being disposed between the anti-extrusion sections. The body section includes sealing surfaces for enclosures in which the sealing device is located. The anti-extrusion section prevents extrusion of the body section.
    Type: Grant
    Filed: January 29, 1993
    Date of Patent: September 3, 1996
    Inventor: John D. Morvant
  • V-shaped seal with anti-extrusion section
    Patent number: 5306021
    Abstract: A dealing device having a body section and an anti-extrusion section is disclosed, the body section being disposed on top of the anti-extrusion section. The body section includes sealing surfaces for enclosures in which the sealing device is located. The anti-extrusion section prevents extrusion of the body section.
    Type: Grant
    Filed: September 24, 1992
    Date of Patent: April 26, 1994
    Inventor: John D. Morvant
  • Anti-extrusion centering seals and packings
    Patent number: 5165703
    Abstract: A sealing system is disclosed that includes an elastomer or other resilient seal material for a center ring bounded by a pair of mesh rings coated with a flexible material. Alternatively, a sealing system is disclosed that uses a plurality of mesh rings, each of the rings being coated with a flexible material.
    Type: Grant
    Filed: March 20, 1991
    Date of Patent: November 24, 1992
    Assignee: OEM Components, Inc.
    Inventor: John D. Morvant