Patents by Inventor Michael D. Burridge

Michael D. Burridge 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).

  • Publication number: 20030034271
    Abstract: The present invention is embodied in a protective surround in combination with an “internal ejector punch.” The internal ejector punch is either integral to an upper membrane of the protective surround, or is simply disposed within a dome or bubble of a conventional blister-pack type container. For example, given a protective surround such as a blister pack, the internal ejector punch provides the capability to safely protect items within the blister pack such as medication in solid, soft or semi-solid, powder, or liquid form, while allowing such items to be easily and rapidly dispensed from the blister pack by a user. Further, the internal ejector punch is designed to be substantially stronger than the relatively soft blister-pack type container, thereby providing the added benefit of protecting items stored within the internal ejector punch in a manner that would not be possible using only a conventional blister-pack type container.
    Type: Application
    Filed: July 3, 2002
    Publication date: February 20, 2003
    Inventor: Michael D. Burridge
  • Patent number: 6443307
    Abstract: The present invention is embodied in an apparatus, such as a blister pack, having the capability to safely store and protect items such as medication in solid, soft or semi-solid, powder, or liquid form, while allowing such items to be easily and rapidly dispensed by a user. The dispenser of the present invention has a flexible upper membrane forming a dome. A lower membrane serves to seal items between the dispensers' upper and lower membranes. An annular-shaped internal cutter resides within the dome between the upper and lower membranes, oriented perpendicular to the membranes. Items are sealed within the chamber created by the structure of the cutter and the upper and lower membranes. The lower membrane is of sufficient strength to prevent inadvertent tearing or rupturing of the membrane, even when carried in a relatively hostile environment, such as with metal keys in a users pocket.
    Type: Grant
    Filed: January 25, 2000
    Date of Patent: September 3, 2002
    Inventor: Michael D. Burridge
  • Patent number: D256252
    Type: Grant
    Filed: December 13, 1978
    Date of Patent: August 5, 1980
    Assignee: Essex Transducers Corporation
    Inventor: Michael D. Burridge