Patents by Inventor Gary E. Walker

Gary E. Walker 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).

  • Patent number: 5594027
    Abstract: The invention is antiobesity/antidiabetic/beta-3 agonists of the formula ##STR1## wherein the substituents R.sub.o, R.sub.1, R.sub.4, R.sub.4 ', R.sub.5, R.sub.6 or n are as defined in the specification.
    Type: Grant
    Filed: May 5, 1995
    Date of Patent: January 14, 1997
    Assignee: American Cyanamid Company
    Inventors: Joseph W. Epstein, Gary H. Birnberg, Gary E. Walker, Minu D. Dutia, Jonathan D. Bloom
  • Patent number: 5510376
    Abstract: The invention is antiobesity/antidiabetic/beta-3 agonists of the formula ##STR1## wherein the substituents R.sub.o, R.sub.1, R.sub.4, R.sub.4 ', R.sub.5, R.sub.6 or n are as defined in the specification.
    Type: Grant
    Filed: May 27, 1994
    Date of Patent: April 23, 1996
    Assignee: American Cyanamid Company
    Inventors: Joseph W. Epstein, Gary H. Birnberg, Gary E. Walker, Minu D. Dutia, Jonathan D. Bloom
  • Patent number: 4550228
    Abstract: The speaker system consists of a single housing containing a tweeter, mid-range and woofer transducer units. The tweeter unit consists of an elongated, aluminum ribbon positioned vertically and connected to the top and bottom of a rigid elongated frame. The ribbon is located between sets of split magnets which are designed to provide a shaped magnetic field that helps center the ribbon in a direction perpendicular to its length. Additional electromagnetic centering is provided by flat ribbon conductors located on the surfaces of the magnets sets which return the current carried by the ribbon. The mid-range transducer is similar to the tweeter transducer in construction except that the edges of the mid-range ribbon are mechanically attached to the frame by foam strips. In addition, the mid-range ribbon is transversely corrugated at variable slant angles relative to ribbon longitudinal axis.
    Type: Grant
    Filed: February 22, 1983
    Date of Patent: October 29, 1985
    Assignee: Apogee Acoustics, Inc.
    Inventors: Gary E. Walker, Leo Spiegel, Anthony J. Shuman, James L. Kirtley, Jr.
  • Patent number: 4537067
    Abstract: An inertial borehole survey system is disclosed. The survey system of the present invention includes a probe suitable for insertion into a borehole. The probe includes a plurality of temperature sensitive inertial measuring instruments which are utilized to survey the borehole during the descent or ascent of the probe. Accuracy of these instruments is maintained by enclosing the instruments in a thermal insulating package and by providing a mass of isothermal heat absorbing material which exhibits a phase change at a temperature well above most ambient temperatures. In a preferred embodiment of the present invention, a heat absorbing material is utilized which exhibits a phase change at a temperature of 116.degree. F. The probe also includes a longitudinal air passage which permits ambient temperature air to be utilized to cool the isothermal heat absorbing material by passing air through the length of the probe.
    Type: Grant
    Filed: November 9, 1983
    Date of Patent: August 27, 1985
    Assignee: Wilson Industries, Inc.
    Inventors: Harper E. Sharp, Leo Spiegel, Richard M. Masters, Elmer J. Frey, John R. Howatt, Gary E. Walker
  • Patent number: 4454756
    Abstract: A system and method for surveying, with accuracies better than one foot per thousand feet of depth, very deep boreholes having the attendant small diameters, high temperatures and high pressures with very high accuracy. A downhole probe is used having a small diameter, less than about four inches. Three linear type accelerometers and at least two gyros to provide three sensitive axes are fixedly mounted at points spaced along the axis of an elongated, rigid, thermally conductive support member to form an instrument cluster. Signals from these instruments are then processed and transmitted serially over a conductor of a conventional wireline to the surface unit where a surface computer continuously computes and records the current position of the instrument.
    Type: Grant
    Filed: November 18, 1982
    Date of Patent: June 19, 1984
    Assignee: Wilson Industries, Inc.
    Inventors: Harper E. Sharp, Leo Spiegel, Richard M. Masters, Elmer J. Frey, John R. Howatt, Gary E. Walker