Patents by Inventor Harry Krukle

Harry Krukle 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).

  • Flexible heat pack containing super cooled salt solution
    Patent number: 4580547
    Abstract: A heat producing apparatus includes a plastic container having flexible walls which are interconnected along a linear zone or zones; a supercooled salt solution is in the container, to be triggered and crystallized, to produce heat; and a trigger floats in the solution relative to the linear zone, and includes a bendable trigger strip, and a multiple member frame confining the strip, the frame and trigger movable together, relative to the linear zone or zones.
    Type: Grant
    Filed: September 17, 1984
    Date of Patent: April 8, 1986
    Inventors: Imants P. Kapralis, Harry Krukle
  • Heat producing mask and method of use
    Patent number: 4559047
    Abstract: A flexible mask includes a container for triggering of salt crystallization. The mask is manipulated to prevent stiffening, so as to be closely fitted to a human face to transmit heat thereto for therapeutic purposes.
    Type: Grant
    Filed: June 4, 1984
    Date of Patent: December 17, 1985
    Inventors: Imants P. Kapralis, Harry Krukle
  • Protected trigger to controllably initiate crystallization
    Patent number: 4532110
    Abstract: A protected trigger usable in initiating crystallization of a supercooled salt solution comprises a thin metallic strip containing multiple openings. The strip is protected as by a peripheral frame and/or by a metallic coating.
    Type: Grant
    Filed: December 27, 1983
    Date of Patent: July 30, 1985
    Assignees: Imants P. Kapralis, Harry Krukle, William W. Haefliger
    Inventors: Imants P. Kapralis, Harry Krukle
  • Trigger to controllably initiate crystallization
    Patent number: 4460546
    Abstract: A trigger usable in initiating crystallization of a supercooled salt solution comprises a thin metallic strip containing multiple pin-hole size openings, and which is bendable with snap displacement. The strip may typically be non-ferrous.
    Type: Grant
    Filed: August 11, 1980
    Date of Patent: July 17, 1984
    Inventors: Imants P. Kapralis, Harry Krukle
  • Trigger to initiate crystallization
    Patent number: 4379448
    Abstract: A trigger to initiate crystallization of a supercoated salt solution comprises,(a) a thin strip having a perimeter,(b) said strip having a multiplicity of slits formed therein, each slit characterized as having opposed elongated edges which face one another in near touching relation,(c) the strip further characterized as having two configurations between which it is bendable with snap-displacement causing the slit edges to initiate progressive exothermic crystallization of said salt in the solution.
    Type: Grant
    Filed: February 22, 1982
    Date of Patent: April 12, 1983
    Inventors: Imants P. Kapralis, Harry Krukle