Discharge lamp having envelope support spacer

Details Discharge lamp having envelope support spacer Discharge lamp having envelope support spacer

1987-03-12

1988-01-19

Moore, David K.

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

313634, 206418, H01J 6130

Patent

active

047206560

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.

REFERENCES:
patent: 3337035 (1967-08-01), Pennybacker
patent: 3548241 (1970-12-01), Rasch et al.
patent: 3579174 (1971-05-01), Gilbert, Jr.
patent: 4217630 (1980-08-01), Albrecht
patent: 4374340 (1983-02-01), Bouwknegt et al.
patent: 4426602 (1984-01-01), Mollet et al.
patent: 4481442 (1984-11-01), Albrecht et al.
Sylvania Product Information Fl35A.
Sylvania Product Information El43.

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