Patents by Inventor John O. Jindra

John O. Jindra 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).

  • Mid-wheel drive wheelchair with rigid front wheel anti-tip stabilizer
    Patent number: 6601863
    Abstract: A mid-wheel drive wheelchair can have various suspensions for the drive wheel such as a rigid connection to the wheelchair frame or a resilient connection thereto. The wheelchair has at least one anti-tip front wheel stabilizer, which is rigidly, i.e. non-resiliently, connected to the frame and accordingly the wheelchair frame moves up and down with the anti-tip wheel upon encountering a bump, hill, etc. The height of the anti-tip wheel above the travel surface is adjustable and accordingly the wheel can be set to a specific height.
    Type: Grant
    Filed: July 2, 1999
    Date of Patent: August 5, 2003
    Assignee: Invacare Corporation
    Inventors: Roland A. Mentessi, John O. Jindra, Jason D. Hunt, James R. Miadock