Patents by Inventor DOUGLAS ABRAHAM CRUMB

DOUGLAS ABRAHAM CRUMB 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).

  • Packaging for retro-reflective markers
    Patent number: 9964649
    Abstract: Described is a device comprising a retro-reflective marker sphere comprising: a core ball comprising: a generally spherical body portion, a mounting base extending from one end of the body portion of the core ball, and a mounting recess having a recess opening in the mounting base and extending into the body portion of the core ball, and a retro-reflective covering on the core ball, the retro-reflective covering comprising an opening through which the mounting base of the core ball extends, wherein a flat lower surface of the mounting base is spaced proximally from a lower edge of the opening of the retro-reflective covering, and wherein the mounting recess includes an interior screw thread for engaging an exterior screw thread of a mounting post when the retro-reflective marker sphere is mounted on the mounting post.
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: May 8, 2018
    Assignee: IZI Medical Products
    Inventors: Helen Zinreich Shafer, David Alan Zinreich, Douglas Abraham Crumb
  • PACKAGING FOR RETRO-REFLECTIVE MARKERS
    Publication number: 20150309187
    Abstract: Described is a device comprising a retro-reflective marker sphere comprising: a core ball comprising: a generally spherical body portion, a mounting base extending from one end of the body portion of the core ball, and a mounting recess having a recess opening in the mounting base and extending into the body portion of the core ball, and a retro-reflective covering on the core ball, the retro-reflective covering comprising an opening through which the mounting base of the core ball extends, wherein a flat lower surface of the mounting base is spaced proximally from a lower edge of the opening of the retro-reflective covering, and wherein the mounting recess includes an interior screw thread for engaging an exterior screw thread of a mounting post when the retro-reflective marker sphere is mounted on the mounting post.
    Type: Application
    Filed: June 15, 2015
    Publication date: October 29, 2015
    Inventors: HELEN ZINREICH SHAFER, DAVID ALAN ZINREICH, DOUGLAS ABRAHAM CRUMB