Patent US3591797A successfully refreshed from Google Patents.
US3591797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle lamps
Assignee: ZF International UK Ltd
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Filing: 1968-02-01
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Granted: 1971-07-06
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Expires: 1988-02-01
Abstract
Abstract A vehicle lamp including a lens, a reflector, and a light source. The reflector includes areas from which it is undesirable that light is reflected, and in order to prevent reflection from these undesirable areas there is provided a shield which is associated with the light source. The shield is nonreflective, and is such that it prevents light from the light source impinging on the undesirable areas of the reflector. Moreover, the shield prevents any light emanating from the lamp which has not first been reflected from the reflector. In addition, the light source has electrical connections made thereto by way of an insulated lead and a conductive braid, the electrical return path of the light source being through the braid. The braid and the supply lead have female connectors at their ends, the female connectors being of different sizes so that external connections to the lamps cannot be made in such a manner that the braid becomes the supply lead.
Inventors
- 👤 Harris Vernon Hicks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:25
CPC Classifications
F; F21; F21V; F21V7/00; F21S; F21S41/00; F21S41/40; F21S41/47
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
224 words
In a vehicle lamp, a light source a lens, a reflector, means interconnecting the lens and reflector to provide an enclosure, said reflector having upper and lower flat generally parallel portions, a part paraboloidal portion interconnecting the upper and lower portion, a light source support mounted on the part paraboloidal portion and extending into the enclosure, a bracket secured to one of said flat generally parallel portions, a light shield carried by the bracket and located between the light source support and the lens, said light shield including generally parallel vertical sides, upper and lower generally parallel faces, an open end facing the light source support to enable said light source mounted in said support to project at least partially into the shield and a closed end facing the lens, said upper and lower faces projecting beyond the vertical sides in the direction of the part paraboloidal portion and being substantially parallel with the generally flat parallel portion of said reflector whereby light emanating from said light source in the support is prevented by said projecting upper and lower faces from impinging on the upper and lower flat parallel portions of the reflector, with the vertical sides and closed end of the shield preventing light being emitted sidewardly and forwardly so that the light is reflected from the part paraboloidal portion of the reflector.
Claim 2
Dependent Claim
224 words
In a vehicle lamp, a light source a lens, a reflector, means interconnecting the lens and reflector to provide an enclosure, said reflector having upper and lower flat generally parallel portions, a part paraboloidal portion interconnecting the upper and lower portion, a light source support mounted on the part paraboloidal portion and extending into the enclosure, a bracket secured to one of said flat generally parallel portions, a light shield carried by the bracket and located between the light source support and the lens, said light shield including generally parallel vertical sides, upper and lower generally parallel faces, an open end facing the light source support to enable said light source mounted in said support to project at least partially into the shield and a closed end facing the lens, said upper and lower faces projecting beyond the vertical sides in the direction of the part paraboloidal portion and being substantially parallel with the generally flat parallel portion of said reflector whereby light emanating from said light source in the support is prevented by said projecting upper and lower faces from impinging on the upper and lower flat parallel portions of the reflector, with the vertical sides and closed end of the shield preventing light being emitted sidewardly and forwardly so that the light is reflected from the part paraboloidal portion of the reflector.
Claim 3
Dependent Claim
27 words
The lamp as claimed in claim 1 wherein the surfaces of the vertical sides, upper and lower faces and closed end of the shield are non reflective.
Claim 4
Dependent Claim
25 words
The lamp as claimed in claim 1 wherein the light source support is conductive, and through which electrical connection to the light source is made.
Claim 5
Dependent Claim
15 words
The lamp as claimed in claim 1 wherein the light source is a tungsten-halogen bulb.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-05 | 1975-01-04 | 1975-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-05 | 1979-01-04 | 1979-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-05 | 1983-01-04 | 1983-07-06 | $7700.00 | Window Closed / Lapsed |