Patents by Inventor Richard G. Hills

Richard G. Hills 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).

  • Advanced downhole periodic seismic generator
    Patent number: 5031717
    Abstract: An advanced downhole periodic seismic generator system for transmitting variable frequency, predominantly shear-wave vibration into earth strata surrounding a borehole. The system comprises a unitary housing operably connected to a well head by support and electrical cabling and contains clamping apparatus for selectively clamping the housing to the walls of the borehole. The system further comprises a variable speed pneumatic oscillator and a self-contained pneumatic reservoir for producing a frequency-swept seismic output over a discrete frequency range.
    Type: Grant
    Filed: February 17, 1989
    Date of Patent: July 16, 1991
    Assignee: Richard G. Hills
    Inventors: Harry C. Hardee, Richard G. Hills, Richard P. Striker
  • Down hole periodic seismic generator
    Patent number: 4805727
    Abstract: A down hole periodic seismic generator system for transmitting variable frequency, predominantly shear-wave vibration into earth strata surrounding a borehole. The system comprises a unitary housing operably connected to a well head by support and electrical cabling and contains clamping apparatus for selectively clamping the housing to the walls of the borehole. The system further comprises a variable speed pneumatic oscillator and a self-contained pneumatic reservoir for producing a frequency-swept seismic output over a discrete frequency range.
    Type: Grant
    Filed: October 28, 1982
    Date of Patent: February 21, 1989
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Harry C. Hardee, Richard G. Hills, Richard P. Striker