Patents by Inventor Jack H. Davis

Jack H. Davis 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: 6923802
    Abstract: A laser eye surgery system and method include a laser for producing a laser beam capable of making refractive corrections, an optical system for shaping and conditioning the laser beam, a digital micromirror device (DMD) for reflecting the shaped and conditioned beam toward the eye, and a computer system for controlling the mirrors of the DMD. The computer system and methodology utilize a higher order polynomial equation to generate a smooth refraction correction profile and determines the coefficients for the higher order polynomial equation from preferably first-, second-, or third-order curves based on the correlation between the coefficients and the desired diopter correction.
    Type: Grant
    Filed: October 16, 2002
    Date of Patent: August 2, 2005
    Assignee: Memphis Eye & Cataract Assoc.
    Inventors: Roy E. Williams, Jack H. Davis
  • Publication number: 20030069566
    Abstract: A laser eye surgery system and method include a laser for producing a laser beam capable of making refractive corrections, an optical system for shaping and conditioning the laser beam, a digital micromirror device (DMD) for reflecting the shaped and conditioned beam toward the eye, and a computer system for controlling the mirrors of the DMD. The computer system and methodology utilize a higher order polynomial equation to generate a smooth refraction correction profile and determines the coefficients for the higher order polynomial equation from preferably first-, second-, or third-order curves based on the correlation between the coefficients and the desired diopter correction.
    Type: Application
    Filed: October 16, 2002
    Publication date: April 10, 2003
    Applicant: Memphis Eye & Cataract Associates Ambulatory Surgery Center (dba MECA Laser and Surgery Center
    Inventors: Roy E. Williams, Jack H. Davis
  • Patent number: 6500171
    Abstract: A laser eye surgery system includes a laser for producing a laser beam capable of making refractive corrections, an optical system for shaping and conditioning the laser beam, a digital micromirror device (DMD) for reflecting the shaped and conditioned beam toward the eye, and a computer system for controlling the mirrors of the DMD. The computer system utilizes at least one polynomial equation to generate a smooth refraction correction profile.
    Type: Grant
    Filed: May 9, 2000
    Date of Patent: December 31, 2002
    Assignee: Memphis Eye & Cataract Associates Ambulatory Surgery Center
    Inventors: Roy E. Williams, Jack H. Davis
  • Patent number: 4937433
    Abstract: The heating unit for sealing vacuum electron tubes of the type having a glass stem, a glass exhaust tubulation extending from the stem and a plurality of electrically-conducting leads extending from the stem in a circular array around the tabulation includes a cylindrical heating coil within a coil recess of an electrically-insulating coil support. The coil recess circumscribes a central aperture within the coil support. The coil support has a first and a second surface with a coil-positioning lip projecting upwardly from the second surface thereof and circumscribing the central aperture. A hollow, substantially cylindrical, tubulation-locator having an outwardly extending flange formed in an outside surface thereof is disposed between the second surface of the coil support and a base plate. The locator also includes a centering collar formed in its outside surface and a tubulation centering aperture formed in the inside surface. A top plate is adjacent to the first surface of the coil support.
    Type: Grant
    Filed: August 30, 1989
    Date of Patent: June 26, 1990
    Assignee: RCA Licensing Corporation
    Inventors: John R. Hale, Earl R. Stahl, Jack H. Davis, Gregory C. Madensky
  • Patent number: 4235428
    Abstract: A bone transfixion pin quide includes a body having two spaced, transversely-extending end portions, channel members and prongs for affixing the body in relation to an insertion site. The channel members are on the end portions, and define entrance and exit channels for the bone transfixion pin. In use, the body is affixed in relation to the insertion site, with the entrance and exit channels along the desired path of the bone transfixion pin.
    Type: Grant
    Filed: March 15, 1979
    Date of Patent: November 25, 1980
    Inventor: Jack H. Davis