Patents by Inventor Irving C. Chase

Irving C. Chase 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).

  • Flow controller
    Patent number: 4476708
    Abstract: A flow controller primarily for breathing gas analysis has a gas flow circuit leading from a breathing air inlet to a gas analyzer and to a vacuum source. Another gas is bled into the circuit between the breathing air inlet and a point upstream of the vacuum source. Such other gas is precluded from flowing upstream in the circuit toward the gas analyzer by making the intervening flow path or conduit of suitable dimensions to have a Peclet number at least equal to 4 and preferably greater than 4 and about 6.
    Type: Grant
    Filed: November 12, 1982
    Date of Patent: October 16, 1984
    Assignee: Thoratec Laboratories Corporation
    Inventors: Kenneth J. Baker, Keith E. Buck, Irving C. Chase, Robert B. Fraser, Clive Miles
  • Flow restrictor
    Patent number: 4456014
    Abstract: For restricting the flow of breathing gas between a patient's breathing tube and a breathing gas analyzer, there is provided a fitting extending into the breathing tube. The fitting preferably has a restricted inlet volume opening through a filter and through a capillary tube into an outlet connectable to the gas analyzer.
    Type: Grant
    Filed: January 3, 1983
    Date of Patent: June 26, 1984
    Assignee: Thoratec Laboratories Corporation
    Inventors: Keith E. Buck, Irving C. Chase, Marius J. Morin