Patents by Inventor Minor W. Pannell

Minor W. Pannell 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: 5398980
    Abstract: An improved mechanical pipe joint for use in a bell and plain pipe end assembly. The joint includes a gland having a conical cavity for receiving a toothed split ring that coaxially compresses and grips the plain pipe end as the gland is tightened to the bell. The joint is sealed by a compressible gasket positioned between the split ring and the bell. The gland further includes an integrally formed, radially extending shelf for abutting against the split ring and mechanically stopping the gland from being pulled over the split ring during joint assembly.
    Type: Grant
    Filed: November 16, 1993
    Date of Patent: March 21, 1995
    Assignee: Tyler Pipe Industries, Inc.
    Inventors: Thomas D. Hunter, Olin I. Jackson, Minor W. Pannell
  • Patent number: 4848808
    Abstract: A mechanical pipe joint comprising a substantially cylindrical body integrally formed with a plurality of pipe restraining members, and a plurality of pipe clamping members, each comprising at least one block slidably engaged with a pipe restraining member, a compressible gasket for graduating suddenly applied forces, and restraining bolts. The clamping system, acting to distribute the clamping forces on a large portion of the surface area of a pipe, simultaneously absorbs and graduates suddenly applied forces, preventing failure of the pipe point.
    Type: Grant
    Filed: September 23, 1988
    Date of Patent: July 18, 1989
    Assignee: Tyler Pipe Industries, Inc.
    Inventors: Minor W. Pannell, Alton L. Meadows