Patents by Inventor Hatsuo Ashi

Hatsuo Ashi 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).

  • Flow path switching apparatus in steam trap
    Patent number: 5095943
    Abstract: A flow path switching apparatus in an automatic regulating valve includes a base having a fluid inlet and a fluid outlet which are connected to pipes, and an automatic regulating valve portion having an inflow hole and an outflow hole for a fluid to be controlled. The automatic regulating valve portion is pivotally mounted on the base. A pair of inflow and outflow communication paths for causing the fluid inlet to communicate with the inflow hole and causing the fluid outlet to communicate with the outflow hole are formed in the automatic regulating valve portion. The fluid inlet is connected to or disconnected from the fluid outlet in accordance with a pivot position of the automatic flow regulating valve portion.
    Type: Grant
    Filed: February 1, 1991
    Date of Patent: March 17, 1992
    Assignee: Fushiman Co., Ltd.
    Inventor: Hatsuo Ashi