Helix Technology Corporation

Ronald Norman Morris

Stephen R Matte

Doreen J Ball-DiFazio

David Christopher Giusti

Yueli Zhang

Ernest D Quintanilha

A cryopanel is formed of aluminum to avoid copper ions in a work chamber, and the aluminum is coated with a Teflon.RTM. polymer for corrosion resistance. A corrosion resistant thermally conductive link is obtained by surrounding indium with a polymer coated C-ring. The cryopanel is shaped as a trough to enable draining of liquid during regeneration.

Corrosion resistant cryopump

A drive for driving a displacer in a cryogenic refrigerator includes a rotatable cam having a cam surface. The cam is rotatable about a pivot point with a cam follower contacting the cam surface. Rotational motion of the cam is converted into reciprocating motion of the cam follower. A displacer rod is coupled between the cam follower and the displacer for transferring the reciprocating motion of the cam follower to the displacer for driving the displacer.

Growing community of inventors

North Falmouth, MA, United States of America

Ronald Norman Morris