Patents by Inventor Norman A. Mathieu

Norman A. Mathieu 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).

  • Metal halide arc discharge lamp assembly
    Patent number: 5252885
    Abstract: An electric lamp assembly includes a sealed lamp envelope, a lamp capsule located within the lamp envelope, a cylindrical, light-transmissive shroud surrounding the lamp capsule, and a mounting arrangement for supporting the lamp capsule and the shroud within the lamp envelope. The mounting arrangement includes one or two supports rods parallel to the axis of the shroud and first and second clips for retaining the shroud and the lamp capsule. The clips prevent both axial and lateral movement of the shroud. The clips are attached to the support rods, typically by welding. In a preferred embodiment, a single clip at each end of the shroud retains both the shroud and the lamp capsule, and requires only a single weld to the support rod.
    Type: Grant
    Filed: September 10, 1991
    Date of Patent: October 12, 1993
    Assignee: GTE Products Corporation
    Inventors: Martin E. Muzeroll, Simone P. Bazin, Norman A. Mathieu, Ronald C. Lekebusch, Edward H. Nortrup
  • Metal halide arc discharge lamp assembly
    Patent number: 5136204
    Abstract: An electric lamp assembly includes a sealed lamp envelope, a lamp capsule located within the lamp envelope, a cylindrical, light-transmissive shroud surrounding the lamp capsule, and a mounting arrangement for supporting the lamp capsule and the shroud within the lamp envelope. The mounting arrangement includes one or two supports rods parallel to the axis of the shroud and first and second clips for retaining the shroud and the lamp capsule. The clips prevent both axial and lateral movement of the shroud. The clips are attached to the support rods, typically by welding. In a preferred embodiment, a single clip at each end of the shroud retains both the shroud and the lamp capsule, and requires only a single weld to the support rod.
    Type: Grant
    Filed: June 18, 1990
    Date of Patent: August 4, 1992
    Assignee: GTE Products Corporation
    Inventors: Martin E. Muzeroll, Simone P. Bazin, Norman A. Mathieu, Ronald C. Lekebusch, Edward H. Nortrup
  • Electrical heating element
    Patent number: 4021769
    Abstract: An elongated electrical heating element comprises intertwisted helical strands of metal wire. Some of the strands extend the full length of the heating element and other strands extend predetermined shorter distances to provide two or more zones having differing electric resistances and therefore differing operating temperatures.
    Type: Grant
    Filed: March 18, 1976
    Date of Patent: May 3, 1977
    Assignee: GTE Sylvania Incorporated
    Inventors: Ronald E. Edin, Norman A. Mathieu
  • Evaporation source
    Patent number: 4002880
    Abstract: In an evaporation source for the vacuum deposition of sublimating material, the evaporant surrounds, and is spaced from, an axially disposed coiled tungsten heater. The evaporated material passes out of the source in an upward direction to deposit on a substrate located above the source.
    Type: Grant
    Filed: August 13, 1975
    Date of Patent: January 11, 1977
    Assignee: GTE Sylvania Incorporated
    Inventors: Ernest A. Davey, Norman A. Mathieu, Edward D. Parent
  • Electric heater
    Patent number: D251796
    Type: Grant
    Filed: December 30, 1976
    Date of Patent: May 8, 1979
    Assignee: GTE Sylvania Incorporated
    Inventors: Ronald E. Edin, Philip G. Aberizk, Norman A. Mathieu, Ruth G. Petersen