Patents by Inventor Donald W. Brous

Donald W. Brous 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: 4966691
    Abstract: Measuring and controlling dialysate flow to a dialyzer in hemodialysis by sensing the flow by an electric signal generating device and using this signal to indicate a differential between a preselected flow and an actual flow, and valving the flow according to this differential. The indication may be visual, and the signal can be used to automate the valving action.
    Type: Grant
    Filed: May 15, 1989
    Date of Patent: October 30, 1990
    Inventor: Donald W. Brous
  • Patent number: 4486303
    Abstract: Control of ultrafiltration by the use of two flowmeters which include fluid flow controls, one between the dialysate supply and the dialyzer input, and a second such flowmeter between the dialyzer output and the effluent. Alternatively, a smaller capacity flowmeter may be placed in parallel with the output flowmeter, to be read as a "vernier".
    Type: Grant
    Filed: April 5, 1983
    Date of Patent: December 4, 1984
    Inventor: Donald W. Brous