Patents by Inventor Richard H. Mundell

Richard H. Mundell 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).

  • Peristaltic down-hole drilling motor
    Patent number: 4576242
    Abstract: A peristaltic down-hole drilling motor comprises a series of breathing working chambers that are formed between a membrane and a tubular section of the stator of the motor.The rotor comprises a plurality of rollers that are rotatably supported in grooves of a carrier body such that the rollers press the membrane at selected intervals against said tubular section.The working chambers are designed such that during operation of the motor the rollers are actuated to ride upon the membrane in front of the expanding portions of the chambers, thereby rotating the rotor relative to the stator.
    Type: Grant
    Filed: August 17, 1984
    Date of Patent: March 18, 1986
    Assignee: Shell Oil Company
    Inventor: Richard H. Mundell