Patents by Inventor G. Keith Hancock

G. Keith Hancock 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).

  • Apparatus and method for reducing ice formation in gas-driven motors
    Patent number: 6644941
    Abstract: A method for reducing ice formation in a gas-driven motor and a reduced-icing, gas-driven motor are provided, the motor having a housing with a first pressure chamber and a second pressure chamber. At least one partition is disposed in the housing and is reciprocally moveable therein responsive to a motive gas being alternately provided to and exhausted from the first and second pressure chambers. A motive gas conduit is disposed between and connects the pressure chambers such that, upon providing the first pressure chamber with motive gas and exhausting the second pressure chamber of motive gas, a portion of the motive gas is permitted to pass from the first pressure chamber to the second pressure chamber through the motive gas conduit. Also provided are a reduced-icing diaphragm and piston pumps having the reduced-icing, gas-driven motor according to the present invention.
    Type: Grant
    Filed: April 18, 2002
    Date of Patent: November 11, 2003
    Assignee: Ingersoll-Rand Company
    Inventors: Stephen D. Able, G. Keith Hancock, Lloyd I. Towne
  • APPARATUS AND METHOD FOR REDUCING ICE FORMATION IN GAS-DRIVEN MOTORS
    Publication number: 20030198560
    Abstract: A method for reducing ice formation in a gas-driven motor and a reduced-icing, gas-driven motor are provided, the motor having a housing with a first pressure chamber and a second pressure chamber. At least one partition is disposed in the housing and is reciprocally moveable therein responsive to a motive gas being alternately provided to and exhausted from the first and second pressure chambers. A motive gas conduit is disposed between and connects the pressure chambers such that, upon providing the first pressure chamber with motive gas and exhausting the second pressure chamber of motive gas, a portion of the motive gas is permitted to pass from the first pressure chamber to the second pressure chamber through the motive gas conduit. Also provided are a reduced-icing diaphragm and piston pumps having the reduced-icing, gas-driven motor according to the present invention.
    Type: Application
    Filed: April 18, 2002
    Publication date: October 23, 2003
    Applicant: Ingersoll-Rand Company
    Inventors: Stephen D. Able, G. Keith Hancock, Lloyd I. Towne