Patents by Inventor John O. Finzer

John O. Finzer 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).

  • Tubular roller sleeve
    Patent number: 3982312
    Abstract: A rubber-sleeved roller including a tubular sleeve preferably fabricated from a plastic material and formed with a smooth internal surface to fit on the smooth outer peripheral surface of a metal core and having a tubular rubber sleeve formed on the outer peripheral surface of the nonmetallic sleeve with the rubber sleeve finish ground to a smooth outer peripheral surface on the nonmetallic sleeve whereby the tubular sleeve structure may be readily interchangeable with a similar sleeve structure on a metal core.
    Type: Grant
    Filed: October 21, 1974
    Date of Patent: September 28, 1976
    Inventor: John O. Finzer