Patents by Inventor Rudolph Fischl

Rudolph Fischl 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).

  • Stackable compact slitting knife assembly
    Patent number: 5713257
    Abstract: A stackable compact knife cutting assembly employing an elongated pneumatic piston/piston rod assembly wherein the elongated piston member is provided with an elongated preformed elastomeric piston ring member disposed in a groove portion thereof and wherein a cutting assembly includes a housing member and arm portions having a slot for receiving a shaft of the rotating knife member and a bearing surface for guiding and contacting bearing surfaces of the knife member to maintain the perpendicular plane thereof to the rotating axis of the cutting knife member.
    Type: Grant
    Filed: March 23, 1993
    Date of Patent: February 3, 1998
    Inventor: Rudolph Fischl