Patents Assigned to Usui Kikusai Sangyo Kaisha Ltd.
  • Duplex metal pipe for damping
    Patent number: 5253680
    Abstract: A duplex metal pipe for damping wherein an inner pipe is inserted into an outer pipe with a clearance of 10 .mu.m to 150 .mu.m provided between an inner surface of the outer pipe and an outer surface of the inner pipe. The outer pipe and said inner pipe are formed of a steel pipe.
    Type: Grant
    Filed: April 18, 1991
    Date of Patent: October 19, 1993
    Assignee: Usui Kikusai Sangyo Kaisha Ltd.
    Inventor: Takeshi Matsumoto
  • Structure for securing pipes together
    Patent number: 5072902
    Abstract: A securing structure is used in securing a plurality of pipes of comparatively small diameter together. With each pipe having a flat surface portion in a straight section thereo, a bracket body is injection-molded from thermoplastic resin such that the flat surface portion and its vicinity of each pipe are embedded in the bracket body.
    Type: Grant
    Filed: November 27, 1990
    Date of Patent: December 17, 1991
    Assignee: Usui Kikusai Sangyo Kaisha Ltd.
    Inventors: Katsushi Washizu, Yuji Miyauchi