U.S. Philips Corporation

David B Green

George A Asselman

Jacob W De Ruiter

Adrianus P Castelijns

Pieter Aart Naastepad

An isothermal heating device comprises an annular tubular body providing a heating chamber for objects. Between the inner wall and the outer wall of this tubular body there is provided a plurality of separate ducts which are situated in a ring-shape about the heating chamber and which extend parallel to the tubular body axis. These ducts contain an evaporable heat transport medium and are in communication with each other preferably at one end of the tubular body. Such interconnection is in turn connected with a gas buffer reservoir containing an inert control gas.

Growing community of inventors

Weymouth, United Kingdom

David B Green