International Business Machines Corporation

Jeffrey J Hare

Gary Franklin Goth

Robert E Simons

Richard C Chu

Roger R Schmidt

Gregory Martin Chrysler

Edward Joseph Seminaro

Jody A Hickey

Willard S Harris

Gerard Francis Muenkel

Robert R Genest

Wade H White

Matthew A Nobile

Edward F Furey

William J Tkazyik

Norton J Tomassetti

Peter L Dutka

Electronic data processing equipment cabinet

A d.c. motor together with a hot gas bypass valve is incorporated into a cooling system specifically designed for removing heat from computer systems. Unlike typical refrigeration systems, the cooling system herein runs continuously and responds to changes in thermal load. This allows the unit to operate within a wide range of ambient conditions and at various thermal load levels unlike other systems which were capable of operation only at a single, predesigned load level. The cooling system is modular and is easily added to or removed from a redundant system which includes a single evaporator with multiple refrigerant loops which provides yet another aspect of continuous operation due to the inherent redundancy thus provided.

Modular refrigeration system

A printed circuit board includes a rectangular array of substantially equally spaced rows and columns of surface mount connectors which are fixedly held to the board by means of cross-shaped connector holders which are disposed at the intersections of the rows and columns. In this fashion, there is achieved a substantial reduction in the number of holes which must be provided in the printed circuit board for connector attachment. This greatly facilitates wiring placement on printed circuit boards, particularly multi-layer boards.

High-density board connector attachment

Growing community of inventors

Staatsburg, NY, United States of America

Jeffrey J Hare