Patents by Inventor Richard DeBiasse

Richard DeBiasse 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: 5474307
    Abstract: A piston head assembly has one, two or more grooves to receive piston rings. One or more of the grooves may receive multiple piston rings. A circumferential groove from the bottom of the elastomeric material allows oil pressure to aid in sealing. A novel piston ring employs a circumferential channel facing outwardly with a shorter bottom channel facing outwardly with a shorter bottom channel sidewall. The elastomeric material extends to form a circumferential extension cooperative with a subgroove of the piston ring groove.
    Type: Grant
    Filed: March 10, 1995
    Date of Patent: December 12, 1995
    Assignee: Richard DeBiasse
    Inventors: Richard DeBiasse, Donald J. Altobe
  • Patent number: 5253877
    Abstract: A piston head assembly has one, two or more grooves to receive piston rings. One or more of the grooves may receive multiple piston rings. One of the piston rings may have a wiper extension on the lower outside edge of the ring either of metal or elastomeric material. An elastomeric ring is retained preferably in a recess in the lower outer edge of the ring and has an outer surface starting inset from the top outer edge of the ring, but tapering to a diameter at least as great as the top outer edge. A circumferential groove from the outer edge. A circumferential groove from the bottom of the elastomeric material allows oil pressure to aid in sealing. A novel piston ring employs a circumferential channel facing outwardly with a shorter bottom channel facing outwardly with a shorter bottom channel sidewall. The channel is filled with elastomeric material providing at its outer surface a wiper member engaging the cylinder wall.
    Type: Grant
    Filed: August 6, 1990
    Date of Patent: October 19, 1993
    Assignee: Richard DeBiasse
    Inventors: Richard DeBiasse, Donald J. Altobelli