Patents by Inventor John L. Hannon, Jr.

John L. Hannon, Jr. 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).

  • Method and apparatus for keeping surfaces organism free
    Patent number: 5327848
    Abstract: Apparatus adapted to prevent or eliminate the attachment of marine organisms to surfaces of marine craft through the use of localized heating of the protected surfaces.
    Type: Grant
    Filed: March 25, 1991
    Date of Patent: July 12, 1994
    Inventor: John L. Hannon, Jr.
  • Method of fabricating a pinch valve
    Patent number: 4985191
    Abstract: A pinch valve is fabricated by providing an elongated tubular housing with a cut-back portion at an outlet end, applying adhesive to the cut back portion, with a ring around the cut-back portion, placing the housing and ring in a mold and heating all three, providing a core rod inside the housing and forcing an elastomer into the space between the core rod and the housing and between the housing and the ring, curing the elastomer and cooling everything to allow the ring to thermally contract to engage the elastomer between the housing and the ring.
    Type: Grant
    Filed: April 26, 1990
    Date of Patent: January 15, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: John L. Hannon, Jr.
  • Mold fill coupling
    Patent number: 4984765
    Abstract: A mold fill coupling combined with a pinch fill valve and an overflow valve permits filling of a mold at one station and disconnecting the fill valve without rotating the mold.
    Type: Grant
    Filed: April 26, 1990
    Date of Patent: January 15, 1991
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: John L. Hannon, Jr.
  • Mold fill coupling
    Patent number: 4974813
    Abstract: A mold fill coupling combined with a pinch fill valve and an overflow valve permits filling of a mold at one station and disconnecting the fill valve without rotating the mold.
    Type: Grant
    Filed: April 26, 1990
    Date of Patent: December 4, 1990
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: John L. Hannon, Jr.
  • Mold fill coupling
    Patent number: 4960263
    Abstract: A mold fill coupling combined with a pinch fill valve and an overflow valve permits filling of a mold at one station and disconnecting the fill valve without rotating the mold.
    Type: Grant
    Filed: December 28, 1989
    Date of Patent: October 2, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: John L. Hannon, Jr.