Patents by Inventor David E. Shoff

David E. Shoff 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: 5534221
    Abstract: A system for sterilizing an object including a hollow cassette for containing the object, a sealable opening in the cassette for ingress and egress of the object, a seal for forming a fluid-tight seal around the opening, input and output ports in the cassette for receiving and exhausting a sterilizing fluid and a sealing check valve in the input and output ports for providing a fluid-tight seal when no connections are made to the input and output ports such that when the object is sterilized within the cassette, the cassette will maintain a sterilized atmosphere for the object until the cassette is opened to allow use of the object.
    Type: Grant
    Filed: July 29, 1994
    Date of Patent: July 9, 1996
    Assignee: American Sterilizer Company
    Inventors: H. William Hillebrenner, Vipul B. Sheth, Joseph M. Stack, Charles T. Curtis, Kevin H. Butler, David E. Shoff, Robert S. Petko, William C. Little, Thaddeus Mielnik, Peter Zell
  • Patent number: 5447343
    Abstract: This connector assembly comprises a connector body which defines a housing. The housing includes a cavity which is designed to receive a piston, capable of back and forth movement within this cavity. This piston includes a biasing element for urging the piston into the forward direction of the cavity. The piston is engaged with the end of an endoscope tube in the front of this cavity. The piston further includes an orifice which fluidly connects the endoscope tube end to a flexible hose in the back of this piston. The endoscope tube is held in place by jaws which slide back and forth in channels in the front of the connector body, perpendicular to the piston cavity. These jaws also include biasing elements which urge the jaws into mechanical engagement with the rigid tube.
    Type: Grant
    Filed: September 28, 1993
    Date of Patent: September 5, 1995
    Assignee: American Sterilizer Company
    Inventors: Mark T. Gajewski, Stephen B. Leonard, David E. Shoff