Patents by Inventor John Giuffrida

John Giuffrida 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: 4785499
    Abstract: A so-called shoe for a glass door embodying a mechanism for making adjustments in the position of pivotal traverse of the door relative to the door opening and also in the lateral position thereof, said pivotal traverse position components of said mechanism including a cam means to selectively load and unload a spring to allow said spring to correspondingly urge said door in opposite directions of pivotal traverse for providing said door with an adjusted position in said door opening.
    Type: Grant
    Filed: February 1, 1988
    Date of Patent: November 22, 1988
    Inventors: Salvatore Giuffrida, John Giuffrida
  • Patent number: 4237023
    Abstract: Aqueous heat-storage compositions useful in space heating applications are disclosed which contain a phase-change material which absorbs and stores heat as it is heated above its phase-change temperature and releases stored heat as it is cooled below its phase-change temperature. These compositions include fumed silicon dioxide which acts as a stabilizing agent and provides dramatically prolonged heat-storage efficiency for these compositions as they undergo repetitive cycling through their phase-change temperature. Articles containing such compositions and methods of forming such compositions are additionally disclosed.
    Type: Grant
    Filed: March 20, 1979
    Date of Patent: December 2, 1980
    Assignees: Massachusetts Institute of Technology, Cabot Corporation
    Inventors: Timothy E. Johnson, John Giuffrida