Patents by Inventor Akio Asano

Akio Asano 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).

  • Safety device for control lever of construction machines
    Patent number: 4799398
    Abstract: A safety device for the control lever of a construction machine having hydrostatic transmission which comprises a casing provided on the machine and a control rod rotatably connected at one end thereof with the control lever associated with the hydrostatic transmission, said control rod being formed with a slender portion at the other end portion which is slidably accommodated by the casing, said slender portion having a coil spring interposed within the casing, and said coil spring being stressed sufficiently to automatically return the control lever to the neutral position when the operator takes his hands off the control lever.
    Type: Grant
    Filed: January 13, 1988
    Date of Patent: January 24, 1989
    Assignee: Mikasa Sangyo Co., Ltd.
    Inventor: Akio Asano