Patents by Inventor Yoshito Aoishi

Yoshito Aoishi 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).

  • Patent number: 5632358
    Abstract: An elevator roller guide includes a platform 12 having a supporting arm portion 12a and being arranged on a cage, a roller 3 in contact with a guide rail erected in a channel, an arm 6 which supports the roller 3 in a freely rotatable manner and which is arranged on the platform 12 in a freely rockable manner, and a spring 16 arranged between the arm 6 and the supporting arm portion 12a of the platform 12. The guide further includes a stopper rod 13 arranged on the supporting arm portion 12a at a position separated by a certain distance in the horizontal direction from the arm 6 on the side of the rocking direction and separated by a certain distance from the spring 16; and a viscoelastic part 63 arranged between the stopper rod 13 and said arm 6. The viscoelastic part 63 is deformed in the shear direction alone, and its damping effect can be efficiently realized.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: May 27, 1997
    Assignee: Otis Elevator Company
    Inventors: Koichi Maeda, Yoshito Aoishi