Patents by Inventor Charles B. Swenson

Charles B. Swenson 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: 5480623
    Abstract: The invention provides a remote non-recirculating steam and condensate collection system for sterilizer effluent. The system includes a cooling tank, apparatus for disposing of collected effluent, and the associated structures which allow for transfer of effluent from the sterilizer into the cooling tank and from the cooling tank to a disposal target. Excess liquid in the cooling tank is disposed of through a simple water displacement technique. An optional waste disposal bottle may periodically be emptied manually.
    Type: Grant
    Filed: November 5, 1993
    Date of Patent: January 2, 1996
    Assignee: MDT Corporation
    Inventors: Robert H. Rotolo, Charles B. Swenson, Dale R. Fine
  • Patent number: 5368821
    Abstract: A sterilizing cassette system is disclosed. A sealed container (cassette) is provided and configured to receive an article to be sterilized (i.e. a load). A sealing member, such as a plunger, is associated with the cassette at an opening formed in the cassette. An actuating member, such as a motor, is mechanically associated with the sealing member to open and close the sealing member at preselected times during the sterilizing cycle. A control device, such as a microprocessor, is associated with the actuating member to provide signals to the actuator to cause it to actuate the plunger at preselected times in the sterilizing cycle. The actuator is formed integral with the sterilizer so that it can be interchangeably used with multiple load-bearing cassettes. Once the cassette is removed from the sterilizer, it remains in its sealed state until the load is needed, thus mainlining the load in a sterilized condition.
    Type: Grant
    Filed: March 28, 1990
    Date of Patent: November 29, 1994
    Assignee: MDT Corporation
    Inventors: John C. Schmoegner, Charles B. Swenson
  • Patent number: 4770169
    Abstract: The present invention provides an improved anaesthetic scavenging face mask having a scavenging channel running along the perimeter of the mask. The mask is provided with an anaesthetic gas inlet and a vacuum outlet. The scavenging channel is connected to the vacuum outlet.
    Type: Grant
    Filed: February 13, 1987
    Date of Patent: September 13, 1988
    Assignee: MDT Diagnostic Company
    Inventors: John C. Schmoegner, Charles B. Swenson, J. Miles Branagan