Patents by Inventor Albert C. Demny

Albert C. Demny 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: 5458507
    Abstract: A fluid resistant electrical connector for a multiconductor electrical cable. The connector comprises a cylindrical shell assembly 20 with a cylindrical insert 34 therein. The cylindrical insert has a plurality of passageways 44 therethrough for receiving a contact receptacle 48 in each respective passageway. A boot seal 100 engages each conductor leading to a respective contact receptacle. Each boot seal has a first portion 102 and a second portion 104 with a coaxial bore therethrough. The coaxial bore has a plurality of internal circumferential ribs 108 therein. The first portion of the boot seal has a plurality of external circumferential ribs 114. A compression plate 122 has a plurality of bores 124 therethrough for receiving and engaging the boot seals. A compression gland 130, engagable with the rear portion of the shell assembly, is adapted to apply axial force to the compression plate which compresses the boot seals.
    Type: Grant
    Filed: September 10, 1993
    Date of Patent: October 17, 1995
    Assignee: EFT Interests, Ltd.
    Inventors: Michael G. Colescott, Albert C. Demny, Wayne Kerr
  • Patent number: 4886121
    Abstract: A new wellhead housing structure which utilizes identical units of a unique wellhead housing of selected internal diameter and pressure rating. Each wellhead housing utilizes a new flexible bowl ("flexbowl") hanger support ring which may be installed and removed as desired during assembly of the wellhead structure during completion of the well. Each wellhead housing forms an internal circumferential groove to receive the flexible bowl hanger support ring in position to receive and support different kinds and sizes of hangers for casing, protective sleeves, and the like. The flexible bowl support ring is drawn into a contracted position. The contracted support ring will pass through the wellhead housing and is seated by a setting tool. Subsequently, a tubing or casing hanger may be landed upon the support ring and supported by the support ring which serves the same functions as the bowl seat in a conventional wellhead housing. The support ring may be removed by a removal tool.
    Type: Grant
    Filed: December 5, 1988
    Date of Patent: December 12, 1989
    Assignee: Seaboard-Arval Corporation
    Inventors: Albert C. Demny, J. Matt Harwell, Reggie H. Etheridge, Robert E. Bush