Patents by Inventor Leon R. Glicksman

Leon R. Glicksman 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: 5157960
    Abstract: Method and apparatus are provided for accurately and more rapidly measuring the permeability of various test gases in cellular polymeric materials with very low permeation rates, comprising a constant volume test chamber sealed with indium gaskets, said chamber being connected to a gas inlet valve and test gas reservoir with pressure gauge, gas outlet valve and oil check valve, an absolute pressure transducer to track the change in pressure in the test chamber, and said chamber being submerged in a water bath for strict temperature control. A thinly cut foam sample is placed in the test chamber surrounded by the test gas, where the gas inside the sample is first allowed to reach equilibrium with the surrounding gas; the pressure of the surrounding gas is then raised or lowered, and the rate at which the sample takes up or gives off the test gas is recorded over time as a change in pressure of the test gas around the foam.
    Type: Grant
    Filed: February 6, 1990
    Date of Patent: October 27, 1992
    Assignee: Massachusetts Institute of Technology
    Inventors: Timothy R. Brehm, Leon R. Glicksman
  • Patent number: 5032439
    Abstract: Thermal insulation vacuum panels are formed of an inner core of compressed low thermal conductivity powders enclosed by a ceramic/glass envelope evaluated to a low pressure.
    Type: Grant
    Filed: August 25, 1989
    Date of Patent: July 16, 1991
    Assignee: Massachusetts Institute of Technology
    Inventors: Leon R. Glicksman, Melissa S. Burke
  • Patent number: 5010112
    Abstract: A filler of non-metallic, light transparent material is formed into particles or flakes and coated with opaque material and dispersed in closed cell foam to reduce overall thermal conductivity and, specifically, to reduce radiation heat transfer.
    Type: Grant
    Filed: December 1, 1989
    Date of Patent: April 23, 1991
    Assignee: Massachusetts Institute of Technology
    Inventors: Leon R. Glicksman, Arlene J. Lanciani
  • Patent number: 4894709
    Abstract: A microchannel heat sink used to cool a high power electronic device such as an integrated circuit comprising a plurality of channels in close thermal contact to the integrated circuit and through which a liquid is passed to create either a developing laminar flow or a turbulent flow. The turbulent flow may be either developing or fully developed. The heat sink features a compensation heater surrounding the integrated circuit and heated at the same rate as the integrated circuit to thereby provide a more uniform temperature at the perimeter of the integrated circuit.
    Type: Grant
    Filed: March 9, 1988
    Date of Patent: January 16, 1990
    Assignee: Massachusetts Institute of Technology
    Inventors: Richard J. Phillips, Leon R. Glicksman, Ralph Larson
  • Patent number: 4534119
    Abstract: A wicking apparatus for drying insulation wet with water, particularly insulation in flat roofing systems and wall systems, is disclosed consisting of a hollow device, capable of penetrating the exterior weather shield or siding to the insulation to create a passageway from the insulation to an external environment where moisture can evaporate, and a wick disposed within the passageway to transport moisture by capillary action from the insulation to the external environment. In retrofit applications, the method resides in penetrating the weather shield or insulation in at least one location and deploying the wicking apparatus to induce drying; in new applications a network of moisture-transporting channels can also be employed within the insulation itself together with one or more wicking apparatuses to further aid in drying.
    Type: Grant
    Filed: June 22, 1983
    Date of Patent: August 13, 1985
    Assignee: Massachusetts Institute of Technology
    Inventor: Leon R. Glicksman
  • Patent number: 4269796
    Abstract: A wet/dry cooling tower wherein a liquid to-be-cooled is flowed along channels of a corrugated open surface or the like, which surface is swept by cooling air. The amount of the surface covered by the liquid is kept small compared to the dry part thereof so that said dry part acts as a fin for the wet part for heat dissipation.
    Type: Grant
    Filed: August 16, 1976
    Date of Patent: May 26, 1981
    Assignee: Massachusetts Institute of Technology
    Inventors: Leon R. Glicksman, Warren R. Rohsenow