Patents by Inventor Jean P. Wesson

Jean P. Wesson 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: 4994046
    Abstract: An elongate cylindrical body portion and a spoon-shaped shield member are injection molded as a single unitary piece of transparent polypropylene. The cylindrical body portion has a longitudinally extending slot so that it can be readily snapped around the barrel of a syringe. The spoon-shaped member extends from the forward end of the body portion. This member can deflect transversely from an un-deflected non-use configuration to a slightly deflected in-use configuration to permit the needle to extend therebeyond when the guard is installed with the body portion in a retracted position relative to the barrel of the syringe. When the body portion of the guard is manually slid to an extended position relative to the syringe barrel, the spoon-shaped member returns to its un-deflected configuration and the tip of the needle is engaged by a plurality of ribs formed on an inner wall of the spoon-shaped member. The tip of the needle is thus concealed and accidental puncture thereby is avoided.
    Type: Grant
    Filed: December 22, 1989
    Date of Patent: February 19, 1991
    Assignee: Vann T. Wesson
    Inventors: Vann T. Wesson, Jean P. Wesson, Thomas J. Ryan