Patents by Inventor Duane Mosure

Duane Mosure 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).

  • Mechanical shaft seal
    Patent number: 4948336
    Abstract: A seal for a pump impeller (22) comprising an annular ring (50) freely received within a cylindrical opening (56) in the pump housing (12) and disposed around a cylindrical portion of the impeller (22).
    Type: Grant
    Filed: May 4, 1989
    Date of Patent: August 14, 1990
    Assignee: Sundstrand Corporation
    Inventor: Duane Mosure
  • Self-priming pump system
    Patent number: 4780050
    Abstract: To achieve priming during start-up and repriming during operation, a self-priming pump system is provided. The self-priming pump system includes a discharge priming reservoir for storing priming liquid for a pump. The discharge priming reservoir has an inlet in communication with the outlet of the pump for receiving priming liquid from the pump and has an outlet in communication with the pump upstream of an impeller and downstream of a liquid supply reservoir for supplying the priming liquid to the pump. The self-priming pump system is operable to separate air from priming liquid in the discharge priming reservoir during recirculation of priming liquid. In addition, a priming valve is disposed between the discharge priming reservoir and the pump to control circulation of priming liquid through the self-priming pump system.
    Type: Grant
    Filed: October 1, 1987
    Date of Patent: October 25, 1988
    Assignee: Sundstrand Corporation
    Inventors: Gerard Caine, Duane Mosure, Thomas Sailer, Thomas Tyler