Patents by Inventor Masaru Oono

Masaru Oono 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).

  • Linear actuator
    Patent number: 7707924
    Abstract: A groove is provided to the rear of an inner wall of a cylinder. A locking ram capable of freely sliding in a radial direction and a cam rod having a profile changing with a transition from the rear to the front from a small diameter part to a large diameter part that are provided relative to a piston. The inner end of the locking ram makes contact with the profile, and the cam rod is urged to the rear by the spring, so that the cam rod can be pushed to the front by a push rod. The piston can therefore be locked with a simple structure, and it is possible to provide a linear actuator where locking can be released with a straightforward operation even when a pressurized oil source fails.
    Type: Grant
    Filed: February 23, 2005
    Date of Patent: May 4, 2010
    Assignees: Honda Giken Kogyo Kabushiki Kaisha, Sumitomo Precision Products Co., Ltd.
    Inventors: Hiroshi Yamanouchi, Katsutoshi Tada, Masaru Oono, Tetsuji Sato
  • Linear actuator
    Publication number: 20050207910
    Abstract: A groove is provided to the rear of an inner wall of a cylinder. A locking ram capable of freely sliding in a radial direction and a cam rod having a profile changing with a transition from the rear to the front from a small diameter part to a large diameter part that are provided relative to a piston. The inner end of the locking ram makes contact with the profile, and the cam rod is urged to the rear by the spring, so that the cam rod can be pushed to the front by a push rod. The piston can therefore be locked with a simple structure, and it is possible to provide a linear actuator where locking can be released with a straightforward operation even when a pressurized oil source fails.
    Type: Application
    Filed: February 23, 2005
    Publication date: September 22, 2005
    Applicants: Honda Giken Kogyo Kabushiki Kaisha, Sumitomo Precision Products Co., Ltd.
    Inventors: Hiroshi Yamanouchi, Katsutoshi Tada, Masaru Oono, Tetsuji Sato