Patents by Inventor Reno G. Knudsen

Reno G. Knudsen 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).

  • Two-stage membrane pump with economical inlet port design
    Patent number: 8287249
    Abstract: A two-stage membrane pump having a first pump head and a second pump head is provided. The pump heads are typically crank operated with a camshaft set up such that one pump head is in exhaust mode and the other in inlet mode, and vice-versa, during operation. The membrane and the inlet and outlet valves of the pump heads are designed to work together, along with each pump head working synchronously such that the inlet of the second pump head and exhaust of the first pump head are sealed by the actions of the two membranes. As a result an inlet valve in the second pump head is not needed. The costs of such a pump are thereby reduced while increasing the reliability of the two-stage pump.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: October 16, 2012
    Assignee: Gardner Denver Thomas, Inc.
    Inventors: Richard C. Fuksa, Reno G. Knudsen
  • TWO-STAGE MEMBRANE PUMP WITH ECONOMICAL INLET PORT DESIGN
    Publication number: 20100158708
    Abstract: A two-stage membrane pump having a first pump head and a second pump head is provided. The pump heads are typically crank operated with a camshaft set up such that one pump head is in exhaust mode and the other in inlet mode, and vice-versa, during operation. The membrane and the inlet and outlet valves of the pump heads are designed to work together, along with each pump head working synchronously such that the inlet of the second pump head and exhaust of the first pump head are sealed by the actions of the two membranes. As a result an inlet valve in the second pump head is not needed. The costs of such a pump are thereby reduced while increasing the reliability of the two-stage pump.
    Type: Application
    Filed: December 19, 2008
    Publication date: June 24, 2010
    Inventors: Richard C. FUKSA, Reno G. KNUDSEN