Patents by Inventor Darrell D. O'Neal

Darrell D. O'Neal 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).

  • Spinal retractor apparatus having a curved blade
    Patent number: 5512038
    Abstract: Surgical retraction apparatus having a retractor blade with a curved blade and a quick release mechanism. The blade has a complex curved shape and notches on the sides to reduce tissue damage during retraction. Blades can be removed from a rack and pinion mechanism by sliding the bushing of the blade over the rack arm.
    Type: Grant
    Filed: November 15, 1993
    Date of Patent: April 30, 1996
    Inventors: Darrell D. O'Neal, Robert J. Schiess, III
  • Method for manufacturing pillowcases
    Patent number: 4893574
    Abstract: In a method and apparatus for constructing pillowcases, upper and lower layers of fabric are conveyed along separate paths with their obverse surfaces facing upwardly. Cuffs are formed along one longitudinal edge of each layer. The upper layer of fabric is then reversed to an obverse-side down orientation, and the upper and lower layers of fabric are superimposed with their obverse surfaces mutually facing and their cuffed lateral edges mutually corresponding. The superimposed upper and lower layers of fabric are then stitched together along the lateral edge opposite the cuffed lateral edge. Next, a length of the superimposed upper and lower layers of fabric is cut to a length equal to the desired width of a finished pillowcase. The resulting rectangular workpiece comprises upper and lower panels of fabric stitched together along one transverse edge and cuffed at their opposite transverse edge.
    Type: Grant
    Filed: June 8, 1989
    Date of Patent: January 16, 1990
    Inventors: Darrell D. O'Neal, Parks C. Stewart
  • Apparatus for manufacturing pillowcases
    Patent number: 4856439
    Abstract: In a method and apparatus for constructing pillowcases, upper and lower layers of fabric are conveyed along separate paths with their obverse surfaces facing upwardly. Cuffs are formed along one longitudinal edge of each layer. The upper layer of fabric is then reversed to an obverse-side down orientation, and the upper and lower layers of fabric are superimposed with their obverse surfaces mutually facing and their cuffed lateral edges mutually corresponding. The superimposed upper and lower layers of fabric are then stitched together along the lateral edge opposite the cuffed lateral edge. Next, a length of the superimposed upper and lower layers of fabric is cut to a length equal to the desired width of a finished pillowcase. The resulting rectangular workpiece comprises upper and lower panels of fabric stitched together along one transverse edge and cuffed at their opposite transverse edge.
    Type: Grant
    Filed: August 18, 1988
    Date of Patent: August 15, 1989
    Inventors: Darrell D. O'Neal, Parks C. Stewart
  • Surgical retractor
    Patent number: D353887
    Type: Grant
    Filed: June 4, 1993
    Date of Patent: December 27, 1994
    Assignee: Chimera, Ltd.
    Inventors: Darrell D. O'Neal, Robert J. Schiess, III
  • Surgical retractor
    Patent number: D363121
    Type: Grant
    Filed: December 27, 1994
    Date of Patent: October 10, 1995
    Assignee: Chimera, Inc.
    Inventors: Darrell D. O'Neal, Robert J. Schiess, III