Patents by Inventor Piotr A. Domanski

Piotr A. Domanski 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).

  • Bi-flow expansion device
    Patent number: 5345780
    Abstract: A bi-flow expansion device for a heat pump or other apparatus where fluid avel is reversed with different required flow rates in each direction. The device comprises a tubular member mounted in a refrigerant line and having non-symmetrical entrance-exits at the ends of the tubular member for changing the mass flow rate of refrigerant through the expansion device when the direction of refrigerant flow is changed.
    Type: Grant
    Filed: December 30, 1991
    Date of Patent: September 13, 1994
    Assignee: The United States of America as represented by the Secretary of Commerce
    Inventors: David A. Aaron, Piotr A. Domanski
  • Bi-flow expansion device
    Patent number: 5085058
    Abstract: A bi-flow expansion device for a heat pump or other apparatus where fluid avel is reversed with different required flow rates in each direction. The device comprises a tubular member mounted in a refrigerant line and having non-symmetrical entrance-exits at the ends of the tubular member for changing the mass flow rate of refrigerant through the expansion device when the direction of refrigerant flow is changed.
    Type: Grant
    Filed: July 18, 1990
    Date of Patent: February 4, 1992
    Assignee: The United States of America as represented by the Secretary of Commerce
    Inventors: David A. Aaron, Piotr A. Domanski