Patents by Inventor Tadayuki Shimowada

Tadayuki Shimowada 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 seal for pressurized fluid pumps
    Patent number: 5509668
    Abstract: A mechanical seal for pressurized fluid pumps including rotary and non-rotating seal members that are compressed together. The rotary seal member is fixed to a drive shaft and includes a contact sealing surface. The non-rotational seal member is also positioned about the drive shaft in a manner that allows for axial but not rotational movement. When a biasing force is placed against one side of the non-rotational seal member the opposite side, the non-rotating contact sealing surface, is pressed into contact with the complimentary rotary seal member contact sealing surface thus providing a mechanical seal.
    Type: Grant
    Filed: May 27, 1994
    Date of Patent: April 23, 1996
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Toshinori Kurita, Eiji Kojima, Tadayuki Shimowada, Fujio Sato