Joseph M Woods

US Patent:

6639364, Oct 28, 2003

Filed:

Jun 29, 2000

Appl. No.:

09/606396

Inventors:

Joseph P. Woods - Hammondsport NY
Eswara V. Vallabhaneni - Elmira NY
Winand H. A. M. Friederichs - Bath NY
Mary E. Fortuna - Canisteo NY
Karl Baker - New York NY

Assignee:

Koninklijke Philips Electronics N.V. - Eindhoven

International Classification:

H01K 118

US Classification:

313625, 313626, 313578

Abstract:

A hard-glass halogen gas-filled incandescent capsule with a single-end or a double-end has a tungsten filament with a primary coil extending from the barrel into the legs, and a secondary coil forming the barrel. One of the legs of the tungsten filament of the single-ended capsule extends into a pinch or press seal of the glass envelope to result in passive extinction of the electric arc at end-of-life. The end of the filament leg near the press seal may be connected to and/or supported by a molybdenum lead wire of the capsule that is within the pinch or the press seal via a clamp formed on the molybdenum lead wire. The passive extinction occurs when the electric arc is conducted through the filament extending into the press seal. Reliable extinction of the arc within the capsule is achieved with simplicity in construction and minimal materials. The primary coil is preferably stretched out to assume the diameter of the tungsten wire where it is embedded in a pinch seal.

US Patent:

20080224614, Sep 18, 2008

Filed:

Nov 13, 2006

Appl. No.:

12/091173

Inventors:

Joseph Woods - Hammondsport NY, US
John Bailey - Bradford NY, US
Joseph Carbone - Hornell NY, US

Assignee:

KONINKLIJKE PHILIPS ELECTRONICS, N.V. - EINDHOVEN

International Classification:

H01J 17/18

US Classification:

313625

Abstract:

An arc tube mounting assembly () for a metal halide arc lamp () includes frame members () for supporting an arc tube (). The arc tube () is supported from above by a looped frame member () having a loop (A) which extends along opposing sides, and across top and base ends (A, B) of the arc tube (), thus evenly distributing the current to discharge electrode thereby cancelling magnetic forces which could displace the arc from the center of the arc tube (), resulting in improved lumen maintenance and extended life. A centering circle (B) of the frame member () wraps around the lower ceramic end plug (), providing coaxial alignment of the arc tube () and the tubular outer envelope ().

US Patent:

20090230864, Sep 17, 2009

Filed:

Apr 6, 2007

Appl. No.:

12/299016

Inventors:

Joseph P. Woods - Hammondsport NY, US
John S. Bailey - Bradford NY, US
Joseph J. Carbone - Hornell NY, US
William T. Solsky - Bath NY, US
Junming Tu - Bath NY, US

Assignee:

KONINKLIJKE PHILIPS ELECTRONICS N.V. - EINDHOVEN

International Classification:

H01J 61/36

US Classification:

313623

Abstract:

A compact open-rated HID lamp () having a shrouded arc tube () positioned within a compact outer envelope (), which lamp () has an arc tube mounting assembly () characterized by a long lead wire () which extends from the press seal () at the base end (A) of the outer envelope (), winds helically around the shroud () and extends into and is biased outwardly against the distal end (B) of the outer envelope (), thus not only conducting current to the distal electrode () of the arc tube (), but also centering and supporting the retaining shroud () and supplementing the shroud's retainment function with minimal parts and minimal wire connections. In addition, arc displacement is minimized, leading to higher lumen maintenance and longer lifetimes.