Patents by Inventor James M. Crates

James M. Crates 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: 4945461
    Abstract: A portable work light including an elongate fluorescent bulb for emitting light when powered from an electrical current source, an elongate, transparent, relatively thick protective shield, a shock absorber within the shield mounting the bulb within the shield in spaced-apart relation thereto against breakage of the bulb from shock or impact. In addition, an elongate, transparent, relatively thin disposable scuff guard is positioned over the shield to protect the shield from scratching and scuffing and which can be replaced when scratched and scuffed to restore full light transmission to the work light.
    Type: Grant
    Filed: May 22, 1989
    Date of Patent: July 31, 1990
    Assignee: Jameson Corporation
    Inventor: James M. Crates
  • Patent number: 4329078
    Abstract: The invention relates to a lock for a splice joint used to releasably join two poles together end to end. The lock prevents the inadvertent withdrawal of the leaf spring finger from the superimposed holes of the splice joint. The lock comprises a ring rotatably positioned on one of the poles astride the leaf spring and having an inner surface comprised of a first, relatively large diameter segment which, when rotated into radial alignment with the leaf spring, permits withdrawal and a second, relatively smaller diameter segment which, when rotated into radial alignment with the leaf spring, frictionally engages and clamps the leaf spring to the pole and prevents withdrawal of the leaf spring finger.
    Type: Grant
    Filed: March 3, 1980
    Date of Patent: May 11, 1982
    Assignee: Jameson Corporation
    Inventors: Thomas B. Crates, James M. Crates