Patents Assigned to Ishikawa Gaset Co., Ltd.
  • Patent number: 5022662
    Abstract: A gasket of the invention is installed in an internal combustion engine with at least one fluid hole. The gasket comprises a main body adapted to be installed in the engine and having at least one first hole communicating with the fluid hole of the engine, and a fluid hole regulation device installed in the first hole of the main body. The fluid hole regulation device includes a second hole, and at least one plate made of a shape memory alloy. The plate moves to enlarge the size of the second hole when the water temperature exceeds a predetermined value, and to reduce the size of the second hole when the water temperature drops under a predetermined value.
    Type: Grant
    Filed: August 1, 1990
    Date of Patent: June 11, 1991
    Assignee: Ishikawa Gaset Co., Ltd.
    Inventor: Hisashi Yasui