Patents by Inventor John M. Popovich

John M. Popovich 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: 4858254
    Abstract: Tub apparatus including:(a) a foamed plastic tub wall having an inner side and an outer side, the tub having an interior to receive liquid,(b) a tensile liner adjacent the wall side, the liner comprising interwoven strips of pre-stretched plastic material characterized in that the liner resists outward expansion in response to loading exerted by liquid filled into the tub interior.
    Type: Grant
    Filed: January 19, 1988
    Date of Patent: August 22, 1989
    Assignee: Softub, Inc.
    Inventors: John M. Popovich, Roc V. Fleishman
  • Patent number: 4843659
    Abstract: A water supply and heating package, for a hot tub, spa, or pool comprising(a) a support,(b) water circulating structure carried by said support and including a pump and connections circulating water from and toward the interior of the hot tub, spa or pool,(c) said structure including an electric motor connected in driving relation with said pump, and including a shunt duct connected with said water circulating structure and located to receive heat generated by operation of said motor to heat a side stream of said water passing through said shunt duct.Also, the apparatus may include a foamed plastic sheet or sheets wound in a spiral to form multiple layers, and defining an insulative, upstanding side wall of a tub, and a bottom wall attached to the side wall.
    Type: Grant
    Filed: July 30, 1986
    Date of Patent: July 4, 1989
    Assignee: Softub, Inc.
    Inventors: John M. Popovich, Roc V. Fleishman
  • Patent number: 4836862
    Abstract: A highly efficient combustor/reactor for a thermophotovoltaic process is provided.It includes:(a) an insulated combustion chamber containing a combustion zone,(b) first and second beds of refractory particles exposed to that zone,(c) structure for supplying a first combustion reactant to that zone,(d) structure for flowing a second combustion reactant to the zone via one of the beds during time T.sub.1 and via the other of the beds during time T.sub.2,(e) structure for removing combustion products from the zone via the other of the beds during time T.sub.1, and via the one bed during time T.sub.2,(f) and thermophotovoltaic cell apparatus exposed to heat radiated from the zone.
    Type: Grant
    Filed: April 28, 1987
    Date of Patent: June 6, 1989
    Inventors: David G. Pelka, John M. Popovich, Roc V. Fleishman
  • Patent number: 4795319
    Abstract: A quiet hair dryer comprises:(a) an air blowing rotor comprising open cell foam,(b) a motor connected in driving relation with the rotor, and(c) a housing to confine the rotor and forming air inlet and discharge passages to pass air to the rotor for passage through the rotor open cell foam as the rotor rotates, and to deliver the air from the rotor in a hair drying stream.
    Type: Grant
    Filed: November 17, 1986
    Date of Patent: January 3, 1989
    Inventors: John M. Popovich, Roc V. Fleishman
  • Patent number: 4337759
    Abstract: A radiant energy redirecting system comprises:(a) a radiant energy transmitting body means,(b) said means comprising multiple elements, each of which acts as a radiant energy redirecting module, having on its cross-sectional perimeter an entry face to receive incidence of said energy into the interior of said perimeter, an exit face to pass said energy to the exterior of said perimeter in a direction towards the reverse side of the body from the side of said incidence, and a Totally Internally Reflecting face angled relative to said entry and exit faces to redirect towards said exit face the radiant energy incident from said entry face,(c) said body means generally redirecting incident radiant energy towards a predetermined target zone situated apart from and on the reverse side of said body relative to the side of said incidence.
    Type: Grant
    Filed: February 27, 1981
    Date of Patent: July 6, 1982
    Assignees: John M. Popovich, William A. Parkyn, Jr., David G. Pelka
    Inventors: John M. Popovich, William A. Parkyn, Jr., David G. Pelka
  • Patent number: 4169460
    Abstract: A solar energy conversion system comprises:(a) a solar converter in which liquid absorbs solar radiation, the liquid being solar energy absorptive,(b) first means to circulate said liquid for flow through the converter, and(c) means to effect removal of liquid from the converter in response to an undesirable operation condition in said system.
    Type: Grant
    Filed: January 26, 1977
    Date of Patent: October 2, 1979
    Inventors: John M. Popovich, Thomas R. Thornbury