Patents by Inventor Henry F. Thiessen

Henry F. Thiessen 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).

  • Attachment apparatus for side-by-side bicycles
    Patent number: 4288089
    Abstract: This invention is an attachment apparatus operable to interconnect two bicycle members in a side-by-side relationship. The attachment apparatus includes a main support coupling means to interconnect the bicycle members and a steering coordinator means to interconnect the steering mechanism on each bicycle member. The main support coupling means is connected to each steering post housing on each bicycle member to permit a constant distance between each bicycle member while permitting relative rotation therebetween. The steering coordinator means interconnects the turning forks on each bicycle member to assure joint and same turning of each front wheel member when steering the bicycle members.
    Type: Grant
    Filed: July 30, 1979
    Date of Patent: September 8, 1981
    Inventor: Henry F. Thiessen