Glenn W Brunner

US Patent:

47493852, Jun 7, 1988

Filed:

Mar 27, 1987

Appl. No.:

7/030638

Inventors:

Glenn W. Brunner - Landisville PA
Samuel Pearlman - Lancaster PA
Randall E. McCoy - Willingboro NJ
Jordan R. Nelson - Pennington NJ

Assignee:

RCA Licensing Corporation - Princeton NJ

International Classification:

B01D 4610

US Classification:

55 97

Abstract:

A method of providing clean air to a workpiece comprises positioning the workpiece adjacent to a first opening in a conduit. The conduit includes a central segment and a peripheral segment having, respectively, the first opening and a second opening disposed at opposite ends of the conduit. The peripheral segment surrounds the central segment such that the first opening is substantially coplanar with the second opening. A laminar flow of air is created through the conduit in a direction away from the second opening and toward the first opening. The air flow is filtered through a HEPA filter supported within the conduit.

US Patent:

57442703, Apr 28, 1998

Filed:

Mar 18, 1996

Appl. No.:

8/620741

Inventors:

Samuel Pearlman - Lancaster PA
Robert Anthony Duschl - Lititz PA
Anthony Stanley Baran - Lancaster PA
Glenn William Brunner - Landisville PA
George Simon Gadbois - Lancaster PA
Frank Thomas DiAugustine - Lancaster PA

Assignee:

Thomson Consumer Electronics, Inc. - Indianapolis IN

International Classification:

G03B 4100
G03C 500

US Classification:

430 25

Abstract:

The novel method for producing a coded marking on a CRT faceplate panel having an exterior and an interior surface with a viewing area surrounded by a periphery and having a luminescent screen with a plurality of different light-emitting phosphors separated by light-absorbing material includes the steps of: depositing a suitable photoresist on the interior surface of the panel to form a layer that extends across the viewing area and onto the periphery; illuminating areas of the photoresist on both the viewing area and the periphery with actinic radiation to selectively change the solubility of the photoresist; developing the photoresist to remove the more soluble areas, thereby exposing underlying portions of the interior surface of the panel while leaving retained areas of less soluble photoresist. The retained areas of the photoresist and the exposed portions of the interior surface of the panel are then overcoated with a light-absorbing material which is dried to form a coating. The light-absorbing coating is developed by removing the retained areas of the photoresist having the overlying light-absorbing coating thereon, while leaving the coating of light-absorbing material adhered to the exposed portions of the interior surface of the panel.