Patents Represented by Law Firm Pisner & Pisner
  • Sealing device
    Patent number: 6047447
    Abstract: The present invention is to provide a new sealing device which has not a capability of the push-through head portion being re-inserted into the socket portion 2 again after when the sealing condition has once been broken and further, a new sealing device can be provided in which an evidence showing the fact that the sealed condition of the sealing device had been broken, intentionally, is remained on this sealing device.
    Type: Grant
    Filed: June 29, 1998
    Date of Patent: April 11, 2000
    Assignees: Kotec's Co., Ltd, Snayo Seisakusho Co., Ltd.
    Inventor: Hideyuki Ueno