Patents by Inventor Yasuhiro Ishida

Yasuhiro Ishida 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).

  • Guide pulley base for wire saw
    Patent number: 5060628
    Abstract: A guide pulley base for wire saw comprising a primary support member, a secondary support member rotatably mounted on the primary support member, a primary grooved pulley rotatably supported on the primary support member in such a way that the rotational axial line of the second support member passes tangentially through the peripheral groove of the primary grooved pulley, and a secondary grooved pulley rotatably supported on the secondary support member in such a way that the rotational axial line of the second support member passes tangentially through the peripheral groove of the secondary grooved pulley.The guide pulley base for wire saw is arranged between an object to be cut and a wire drive unit for guiding a cutting wire and smoothly turning the wire travel direction when an object to be cut such as ferroconcrete structure is cut off partially.
    Type: Grant
    Filed: March 28, 1991
    Date of Patent: October 29, 1991
    Assignee: Kabushiki Kaisha Dymosha
    Inventor: Yasuhiro Ishida