Patents Examined by Davis, Jr., Albert W.
  • Patent number: 4951740
    Abstract: A bellows type heat pipe which conducts heat away from an electronic device to a heat sink. The heat pipe is a sealed bellows type container which has an evaporator section at one end and a condenser section at an opposite end. The evaporator section contains a saturated radial wick while the condenser section is lined with a radial wick and a circumferential wick. A corrugated slab wick is longitudinally disposed within the heat pipe interconnecting the evaporator and the condenser sections. The evaporator section is placed on the electronic device and the condenser section is enclosed in a housing which is connected to a heat sink. In operation, the electronic device generates heat energy which causes the fluid in the evaporator to vaporize building a vapor pressure in the heat pipe. The heat pipe expands in the direction of the condenser causing the condenser section to make intimate contact with the inside of the housing.
    Type: Grant
    Filed: June 27, 1988
    Date of Patent: August 28, 1990
    Assignee: Texas A & M University System
    Inventors: George P. Peterson, Sevgin Oktay
  • Patent number: 4619316
    Abstract: In an apparatus wherein heat generating bodies such as integrated circuit chips are cooled by utilizing boiling of a liquid; a heat transfer apparatus characterized in that a heat conductive member which has a plurality of layers of cavity groups and apertures for bringing the cavity groups into communication is installed on a surface of each of the heat generating bodies.
    Type: Grant
    Filed: April 24, 1985
    Date of Patent: October 28, 1986
    Assignee: Hitachi, Ltd.
    Inventors: Wataru Nakayama, Tadakatsu Nakajima, Shigeki Hirasawa, Akiomi Kohno, Takaji Takenaka
  • Patent number: 4484617
    Abstract: The present invention relates to a method of using and storing energy from the environment using a storage medium, especially silica gel or zeolite, which works by means of chemical reactions or sorptions, in which during charging with energy exergy is accumulated to a high density in this storage medium via an inert gaseous carrier medium for the exergy, and during discharging the stored exergy is extracted from the store, as required, also by means of an inert gaseous carrier medium for conversion into heat or cold of the desired level. The method of the present invention is carried out in such a way that:(a) on charging with energy the exergy of smaller imbalances of the environment is accumulated and/or(b) on discharging energy the residual exergy contained in the emerging gaseous inert carrier medium is used for charging a further storage medium, in which no or only a little exergy is accumulated.
    Type: Grant
    Filed: June 11, 1981
    Date of Patent: November 27, 1984
    Assignee: Didier-Werke AG
    Inventor: Rudolf Sizmann