Patents by Inventor David M. Dupill

David M. Dupill 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: 5865446
    Abstract: An articulated two-section snowboard has a first and second section joined together for twisting and oscillation. Each section has an upper surface, a lower surface and an outer portion and an inner portion. A flexible connector joins the inner portions of the first and second sections and a pair of bindings for securing the feet of a user to the upper surface of the first and second sections.
    Type: Grant
    Filed: March 24, 1997
    Date of Patent: February 2, 1999
    Inventors: Mark J. Kobylenski, David M. Dupill
  • Patent number: 5618051
    Abstract: An articulated two-section snowboard includes separate front and rear sections joined together for articulation and oscillation, each section having a binding for one foot. In a preferred embodiment, the joint between the two sections is achieved by one or more flexible straps. The front end of the strap being attached to the rear end of the front section and the rear end of the strap being attached to the front of the rear section, the strap preferably passes through openings formed for the purpose in the front of the rear section. A spacer may be provided to keep the rear section from riding up over the front section, and a quick-connect and disconnect latch may be provided to separate the sections for purposes of storage or replacement of a section.
    Type: Grant
    Filed: June 5, 1996
    Date of Patent: April 8, 1997
    Inventors: Mark J. Kobylenski, David M. Dupill