Patents by Inventor Nicholas E. Hollis

Nicholas E. Hollis 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).

  • Removable sealing plug for spaced apart wall structure
    Patent number: 4300774
    Abstract: A plug including an axial shaft, a mating end of which is spring coupled to a mating portion of a sealing plug. The other end of the shaft includes an externally threaded portion and a flanged portion. The sealing plug also includes an externally threaded portion and a flanged portion. The spring normally mates the shaft and sealing plug together so that the members are rotationally engaged. When the spring is suitably compressed, the mating relationship is removed so that the members are rotationally disengaged. The plug is particularly useful in conveniently sealing double wall combustors such as those in gas turbine engines.
    Type: Grant
    Filed: April 28, 1980
    Date of Patent: November 17, 1981
    Assignee: General Electric Company
    Inventors: Nicholas E. Hollis, Michael P. Swift, Herbert Halila