Patents by Inventor Thomas R. Davison

Thomas R. Davison 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: 5279582
    Abstract: A safety hypodermic device includes a protective sleeve carried on the barrel of a syringe or the needle holder of an intravenous line. The sleeve has an extended position which envelops and protects the needle and a retracted position which exposes the needle for injection purposes. A coil spring carried on the barrel urges the sleeve toward the extended position. The open end of the sleeve may be provided with internal resilient tabs and a flange for receiving and grasping the head of a medicine bottle and for allowing the needle to penetrate the medicine bottle to the proper depth for filling. The spring may extend into the interior of the sleeve and abut against an internal rim of the sleeve. The plunger and barrel may be provided with tactile feedback to enable a visually impaired person to determine the amount of medicine being filled or dispensed.
    Type: Grant
    Filed: April 1, 1992
    Date of Patent: January 18, 1994
    Inventors: Thomas R Davison, Alan R. Leist deceased, by Judith L. Leist, executrix
  • Patent number: 5205627
    Abstract: A lateral mobile storage system is disclosed in which the weight of the rear, fixed storage unit rests upon the foot of an anti-tip underlayment. The anti-tip underlayment has an arm extending forwardly upon which rests the rear track for the mobile storage unit held in correct alignment thereby with the fixed storage unit. The mobile storage unit carriage includes a rearwardly extending finger which engages a retainer on the anti-tip underlayment to prevent the mobile storage unit from tipping forwardly. The components are provided in modular lengths and need not be affixed to the floor.
    Type: Grant
    Filed: March 14, 1991
    Date of Patent: April 27, 1993
    Assignee: Ripp Mobile System, Inc.
    Inventors: Thomas R. Davison, Philip M. Croel, Alan R. Leist