Patent US3983741A successfully refreshed from Google Patents.
Patent US4012658A successfully refreshed from Google Patents.
US4012658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric lamps mounted in a flanged cap
Assignee: EMI Group Ltd
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Filing: 1975-11-26
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Granted: 1977-03-15
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Expires: 1995-11-26
Abstract
Abstract An electric lamp assembly for use in sealed beam lighting units comprises a sealed envelope containing a light source mounted in an integnally flanged cap. Electrical supply leads pass through hermetic seals in the cap, and means are provided which support the light source in a predetermined position relative to the cap flange.
Inventors
- 👤 Arthur Samuel Vause
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:02
CPC Classifications
H; H01; H01K; H01K1/00; H01K1/42; H01K1/46; H01K1/36
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
85 words
An electric lamp comprising an envelope containing a light source, said envelope having a press seal and supply leads entering the envelope through the press seal, said lamp further comprising a metal cap, said cap having an integral peripheral flange, a support mounting said envelope on said cap, said support being attached to the press seal of the envelope, and current leads passing through openings in said cap and hermetically sealed in said openings by electrically insulating material which insulates said leads from said cap.
Claim 2
Dependent Claim
85 words
An electric lamp comprising an envelope containing a light source, said envelope having a press seal and supply leads entering the envelope through the press seal, said lamp further comprising a metal cap, said cap having an integral peripheral flange, a support mounting said envelope on said cap, said support being attached to the press seal of the envelope, and current leads passing through openings in said cap and hermetically sealed in said openings by electrically insulating material which insulates said leads from said cap.
Claim 3
Dependent Claim
44 words
An electric lamp as claimed in claim 1 comprising depressions in the outer surface of said cap, said openings being formed in the depressions, and fused beads of electrically insulating material received in said depressions and hermetically sealing said current leads in said openings.
Claim 4
Dependent Claim
22 words
An electric lamp as claimed in claim 1 wherein said support has spaced legs secured in the inner wall of said cap.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-03-14 | 1980-09-13 | 1981-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-14 | 1984-09-13 | 1985-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-14 | 1988-09-13 | 1989-03-15 | $7700.00 | Window Closed / Lapsed |