Duniway Stockroom Corporation

Benson

Sherman Lloyd Rutherford

Arthur E Bliss

Noel J Schmidt

Robert J Espinosa

Ronald M Paitich

Jeffrey Richard Winkler

Frederick P Brechtel

A sputter ion pump including an evacuateable envelope having a chamber, first and second cathodes and an anode disposed in the chamber. The anode can have an outer layer of a non-evaporable getter (NEG) material so as to permit NEG pumping of gases by the anode. In another aspect of the invention, the anode can be formed with spaced-apart first and second sheet portions disposed in juxtaposition to each other and having a plurality of holes extending through the sheets for forming a plurality of anode cells.

Sputter ion pump with enhanced anode

There is described a vacuum gauge in which an anode grid defines an ionization volume directly into which electrons are injected where they collide with gas molecules and atoms to form ions. A collector electrode is mounted within the ionization volume.

Ionization vacuum pressure gauge

A sputter ion pump including an anode assembly comprising a plurality of hollow anode cells and cathode surfaces having open spirals disposed at each end of said anode cells.

Cathode structure for sputter ion pump

A recording head for use in an electrostatic printer comprises four staggered rows of styli. Signals for driving each row of styli are transmitted through a buffer wherein the signals for the first row of styli are transmitted without delay to the styli, the signals for the second row of styli are transmitted with an appropriate delay of a first selected time, the signals for the third row of styli are transmitted with an appropriate delay of a second selected time and the signals for the fourth row of styli are transmitted with an appropriate delay of a third selected time. The delay means comprises a random access memory driven by address counters controlled by a control sequencer to function as a delay. The four staggered rows of styli are formed by a novel method wherein the styli in the second row are formed between the styli in the first row and the stylis in the third and fourth rows are formed by making use of the grooves formed between the styli in the first and second rows. By forming the rows of styli on a cylindrical drum, two recording heads are obtained from each fabrication run wherein the recording head in one set of styli is the mirror image of the recording head in the other set of styli. Should an error occur in the manufacture of the styli by placing the third row of styli in the grooves where the fourth row of styli normally belongs, the resulting recording heads are identical to those obtained with the proper placement of the third and fourth rows with the exception that the position on the drum of each type of recording head is reversed.

Guadrascan styli for use in staggered recording head

A recording head for use in an electrostatic printer comprises four staggered rows of styli formed by a novel method wherein the styli in the second row are formed between the styli in the first row and the styli in the third and fourth rows are formed by making use of the grooves formed between the styli in the first and second rows. By forming the rows of styli on a cylindrical drum, two recording heads are obtained from each fabrication run wherein the recording head in one set of styli is the mirror image of the recording head in the other set of styli. Should an error occur in the manufacture of the styli by placing the third row of styli in the grooves where the fourth row of styli normally belongs, the resulting recording heads are identical to those obtained with the proper placement of the third and fourth rows with the exception that the position on the drum of each type of recording head is reversed.

Growing community of inventors

Portola Valley, CA, United States of America

Sherman Lloyd Rutherford