Patents by Inventor Nobuyoshi Ohki

Nobuyoshi Ohki 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).

  • Patent number: 4215254
    Abstract: A high-quality pressure switch comprising a member moving according to pressure applied and a moving contact piece to act as a switch. The member has an end portion contained in a switch case to engage with said moving contact piece and remain in touch with a spring bearing and further a flanged portion contacting a stopper built in said switch case when a spring incorporated in said spring bearing is compressed by the end portion actuated by the travel of the member moving in a direction of a switch chamber when subjected to pressure. The moving contact is fitted with a moving contact on one end thereof and has the other end secured to a terminal elastically and in a freely movable condition to swing and move the moving contact piece pivoting on the end against the resilient force of spring according to the travel of said member, whereby said moving contact is separated from a fixed contact to switch off.
    Type: Grant
    Filed: December 6, 1978
    Date of Patent: July 29, 1980
    Assignee: Niles Parts Co., Ltd.
    Inventor: Nobuyoshi Ohki