US4070568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lamp cap for use with indicating light assembly
Assignee: AG Communication Systems Corp
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Filing: 1976-12-09
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Granted: 1978-01-24
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Expires: 1996-12-09
Abstract
Abstract A lamp cap for use with an indicating light assembly or illuminated push button wherein the light source is a light emitting diode or other low output light producing device. A light concentrating lens is included which conducts light from the light source to the top of the lamp cap wherein a concentrated light pattern appears to indicate operation of the associated light producing device.
Inventors
- 👤 Babulal Virji Gala
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:54
CPC Classifications
F; F21; F21S; F21S8/00; F21W; F21W2111/00; F21Y; F21Y2115/00; F21Y2115/10; Y; Y10; Y10S; Y10S362/00; Y10S362/80
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
74 words
A lamp cap for use with indicating light assembly comprising: A substantially flat upper portion; supported by wall means extending in a downward direction from said upper portion to form an open bottomed structure having a hollow interior; said upper portion including an off-center positioned frusto-conical shaped lens; said lens extending downward from said upper portion and positioned within said wall means; said wall means further adapted to releasably engage said indicating light assembly.
Claim 2
Dependent Claim
74 words
A lamp cap for use with indicating light assembly comprising: A substantially flat upper portion; supported by wall means extending in a downward direction from said upper portion to form an open bottomed structure having a hollow interior; said upper portion including an off-center positioned frusto-conical shaped lens; said lens extending downward from said upper portion and positioned within said wall means; said wall means further adapted to releasably engage said indicating light assembly.
Claim 3
Dependent Claim
18 words
A lamp cap as claimed in claim 1 wherein said upper portion is constructed of light transparent material.
Claim 4
Dependent Claim
31 words
A lamp cap as claimed in claim 1 there is further provided cover means of light transparent material covering all of said upper portion and substantially all of said wall means.
Claim 5
Dependent Claim
29 words
A lamp cap as claimed in claim 3 wherein said wall means further include receiving means; and said cover means include projecting means adapted to engage said receiving means.
Claim 6
Dependent Claim
23 words
A lamp cap as claimed in claim 3 wherein identification means are provided between said lens cap upper portion and said cover means.
Claim 7
Dependent Claim
25 words
A lamp cap as claimed in claim 1 wherein said lens includes an exterior surface treated to increase the light reflection characteristics of said lens.
Claim 8
Dependent Claim
49 words
A lamp cap as claimed in claim 1 wherein said indicating light assembly includes a light source providing illumination at a predetermined wave length; and said upper portion and said lens are constructed of light transparent material of a color having the same wave length as said light source.
Claim 9
Dependent Claim
26 words
A lamp cap as claimed in claim 7 wherein said light source is a light emitting diode positioned directly below the center of said upper portion.
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) | 1981-01-23 | 1981-07-25 | 1982-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-23 | 1985-07-25 | 1986-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-23 | 1989-07-25 | 1990-01-24 | $7700.00 | Window Closed / Lapsed |