CHARLES H POIRIER
Electrician in Topsfield, MA

License number
Massachusetts 17780
Expiration Date
Jun 30, 1990
Type
Electrical Engineer
Address
Address
Topsfield, MA 01983

Professional information

Charles Poirier Photo 1

Mercury Dispenser For Arc Discharge Lamps

US Patent:
4282455, Aug 4, 1981
Filed:
Nov 7, 1979
Appl. No.:
6/092000
Inventors:
Frank M. Latassa - Magnolia MA
Roland L. Bienvenue - Lawrence MA
Charles H. Poirier - Topsfield MA
John Wallace - Salem MA
Assignee:
GTE Products Corporation - Stamford CT
International Classification:
H01J 6128
US Classification:
313177
Abstract:
A mount for an arc discharge lamp has a cathode thereon which is encircled by a disintegration shield. The shield has a narrow gap between its ends with a mercury-containing metal capsule in the gap. The capsule is comprised of a metal cup having a larger diameter portion and a smaller diameter portion, the larger diameter portion having been flattened and sealed after the mercury has been dispensed into the capsule. The flattened larger diameter portion of the capsule is welded across the gap of the shield.


Charles Poirier Photo 2

Discharge Lamp Having Envelope Support Spacer

US Patent:
4720656, Jan 19, 1988
Filed:
Mar 12, 1987
Appl. No.:
7/024955
Inventors:
David W. Johnston - Waverly NY
Charles H. Poirier - Topsfield MA
Assignee:
GTE Products Corporation - Danvers MA
International Classification:
H01J 6130
US Classification:
313493
Abstract:
An arc discharge lamp having a sealed envelope including at least two longitudinally extending leg members spaced a predetermined distance thereapart and joined together by a transversely extending envelope portion. Support spacer means formed from the envelope (e. g. , by blow molding) prevents breakage of the transversely extending envelope portion caused by inward deflection of the leg members. Preferably, the support spacer means includes a plurality of truncated-cone shaped protrusions extending laterally between the leg members.