Frederick L Kuhn

US Patent:

52642569, Nov 23, 1993

Filed:

Sep 8, 1992

Appl. No.:

7/941463

Inventors:

John J. Wozniak - Webster NY
Barry A. Lees - Fairport NY
John A. Appoloney - Rochester NY
Lloyd A. Relyea - Webster NY
L. John Potter - Marion NY
Frederick L. Kuhn - Macedon NY
Edwin R. Kuhn - Rochester NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

C23C 1402
C23C 1424
C23C 1650

US Classification:

427535

Abstract:

Disclosed is a method and apparatus for effecting glow discharge comprising an elongated electrically conductive glow bar electrode, means for applying a potential to the glow bar electrode, thereby generating ions, means for creating a flow of ions from the glow bar electrode to a second electrode, and a shield situated to block partially the flow of ions between the glow bar electrode and the second electrode, said shield having a plurality of apertures through which ions can flow between the glow bar electrode and the second electrode, each aperture having associated therewith at least one shutter, said shutters being capable of at least partially blocking the flow of ions through the apertures, each shutter individually movable to a plurality of positions to adjust the flow of ions through the apertures.

US Patent:

55823939, Dec 10, 1996

Filed:

Apr 21, 1995

Appl. No.:

8/426506

Inventors:

L. John Potter - Ontario NY
John A. Appoloney - Rochester NY
Barry A. Lees - Fairport NY
Frederick L. Kuhn - Macedon NY
Lloyd A. Relyea - Webster NY
John Wozniak - Webster NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

C21B 300

US Classification:

266 44

Abstract:

There is disclosed a method for maintaining the levelness of a crucible having a first end and a second end during thermal expansion of the crucible comprising: providing a continuous pulling force on the first end in a direction parallel to the length of the crucible during heating of the crucible.