US4119877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric lamp having a cap plate
Assignee: US Philips Corp
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Filing: 1976-08-18
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Granted: 1978-10-10
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Expires: 1996-08-18
Abstract
Abstract In an automobile incandescent lamp the pinch cooperates with a cap plate which consists of a resilient material and is coupled to the pinch lugs engaging the pinch.
Inventors
- 👤 Franz Josef Grewe
- 👤 Heinz Rosler
- 👤 Oskar Ruhl
- 👤 Klaus Stenke
- 👤 Egidius Van Wersch
- 👤 Leo Wings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:06
CPC Classifications
H; H01; H01K; H01K1/00; H01K1/42
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
120 words
An automobile electric lamp which comprises: an envelope having a bulbous portion and a pinch which is rectangular in cross-section and which has first, second, third, and fourth sides, said first and third sides opposed, said second and fourth being opposed sides which are wider than said first and third sides, a filament disposed within said envelope and a metal cap plate having a rectangular recess having a lug stamped out of the plate disposed on each side of said recess, said cap plate being a resilient material and being coupled to each side of said pinch by the resilient engagement of said lugs, said lugs extending from said cap plate in a direction generally away from said bulbous portion.
Claim 2
Dependent Claim
120 words
An automobile electric lamp which comprises: an envelope having a bulbous portion and a pinch which is rectangular in cross-section and which has first, second, third, and fourth sides, said first and third sides opposed, said second and fourth being opposed sides which are wider than said first and third sides, a filament disposed within said envelope and a metal cap plate having a rectangular recess having a lug stamped out of the plate disposed on each side of said recess, said cap plate being a resilient material and being coupled to each side of said pinch by the resilient engagement of said lugs, said lugs extending from said cap plate in a direction generally away from said bulbous portion.
Claim 3
Dependent Claim
35 words
A lamp as claimed in claim 1 wherein said lugs on the second and fourth sides have a height dimension which is substantially equal to half the width of said recess of said cap plate.
Claim 4
Dependent Claim
21 words
A lamp as claimed in claim 2 wherein each of said lugs are separated into a plurality of discrete resilient flaps.
Claim 5
Dependent Claim
22 words
A lamp as claimed in claim 3 wherein said discrete resilient flaps are rotated about an axis extending from said cap plate.
Claim 6
Dependent Claim
47 words
A lamp as claimed in claim 1 wherein said cap plate has slot having a meandering shape defining discrete lug segments having a length substantially equal to the width of said recess of said cap plate and which hold the pinch on said first and second sides.
Claim 7
Dependent Claim
37 words
A lamp as claimed in claim 1 where said pinch includes a stud extending in a direction which is aligned generally with one side of said pinch and said lug is configured and dimensioned for locking engagement.
Claim 8
Dependent Claim
27 words
A lamp as claimed in claim 6 wherein said pinch has knurls on said second and fourth sides extending transversely to the longitudianl axis of said lamp.
Claim 9
Dependent Claim
37 words
A lamp as claimed in claim 7 wherein said lugs engaging said second and fourth sides of said pinch are concave with respect to the pinch and engage the knurls in said pinch only with their edges.
Claim 10
Dependent Claim
37 words
A lamp as claimed in claim 6 further including at least two studs disposed at the end of the pinch nearest the lamp which contacts said cap plate when said envelope and said cap plate are assembled.
Claim 11
Dependent Claim
21 words
A lamp as claimed in claim 6 wherein said pinch is tapered to a smaller thickness at the free end thereof.
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) | 1981-10-09 | 1982-04-10 | 1982-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-09 | 1986-04-10 | 1986-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-09 | 1990-04-10 | 1990-10-10 | $7700.00 | Window Closed / Lapsed |