Rca Inc.

Thermal Corporation

Thermacore, Inc.

Richard W Longsderff

Jerome E Toth

George A Meyer, Iv

Dale V Henry

Scott D Garner

Donald B Kaiser

The apparatus is a device for transferring heat across the hinged joint between the two sections of the case of a laptop computer. Two simple heat pipe cylinders are inserted into parallel cylindrical holes in a heat conductive block. One cylinder is bonded within its hole, and the other cylinder is permitted to rotate within its hole. The axis of the rotatable cylinder is located in line with the axis of the mechanical hinges which permit the panels to pivot relative to each other. A heat producing device in one panel can be then attached to one heat pipe, and a heat sink on the other panel can be attached to the other heat pipe. The heat transfer between the heat source and the heat sink is essentially that of a heat pipe except for the very short heat conductive path through the solid block and the one rotating joint.

Heat pipes inserted into first and second parallel holes in a block for

The apparatus is a cooling device for an integrated circuit chip which includes a heat conductive pad for contact with the top surface of the chip and for attachment to a heat pipe to dispose of the heat. One surface of the pad is flat and contacts the circuit chip while the opposite surface of the pad is attached to a simple cylindrical heat pipe. The pad includes extensions from its sides to which a holding fixture applies force so that the pad is held tightly against the chip. The holding fixture is held on the mounting board by screws while the top of the pad which is attached to the heat pipe protrudes through a hole in the holding fixture. A finned heat exchanger is attached to an end of the heat pipe remote from the conductive pad.

Integrated circuit cooling apparatus

A film of photoemissive material, such as antimony, is vaporized from a platinum-antimony source onto a substrate in an enclosure. The source is preferably a plurality of beads formed by attaching substantially spherical particles of platinum-antimony (50--50 by atomic volume) to a platinum-clad molybdenum wire. The spherical particles are accurately sized so that each bead comprises substantially the same amount of antimony. The beads are symmetrically arranged about the substrate so that upon evaporation a substantially uniform film of photoemissive material is deposited on the substrate.

Method of making a photosensitive electrode and a photosensitive

An alkali metal dispenser in an electron tube for vapor depositing alkali metals on photoemissive surface within the tube envelope comprises a non-welded-tubular housing having walls formed by spirally rolling upon itself a thin sheet of tantalum so that the walls spirally overlap, preferably twice. The 'double wrapped' dispenser prevents uncontrollable escape of alkali particles contained within the interior of the tubular housing and provides a substantially uniform orifice for repeatable release of alkali vapors.

Alkali metal dispenser

The metal end plates of a laser device are provided with relatively large annular hub portions extending outwardly from the laser envelope. Glass mirror blocks are used, each having a small area of a reflective coating in the center of one surface of the block. To bond the block to an end plate of the laser device, the mirror is aligned substantially on the axis of the hub and rf energy is used to heat the end of the hub to a sufficiently high temperature to seal it to the glass. The hub is brought into contact with the glass surface of the mirror block and a seal is made without damage to the mirror coating.

Growing community of inventors

Lancaster, PA, United States of America

Richard W Longsderff