Patent US3986017A successfully refreshed from Google Patents.
US3986017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automobile headlight
Assignee: Lawrence Peska Associates Inc
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Filing: 1975-04-03
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Granted: 1976-10-12
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Expires: 1995-04-03
Abstract
Abstract A substantially glare-free vehicle headlight is characterized by a fluorescent light emitting element.
Inventors
- 👤 Frank Kulle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:48
CPC Classifications
F; F21; F21S; F21S41/00; F21S41/10; F21S41/14; F21S41/17; F21S41/173; F21S41/19; F21S41/192; F21S41/20; F21S41/25; F21S41/255; F21S41/29; F21S41/295; F21S41/30; F21S41/32; F21S41/321; F21S45/00; F21S45/50
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
158 words
A substantially glare-free vehicle headlight comprising: a reflector housing, a light emitting element constructed and arranged to be mounted in said housing adjacent the rear wall thereof said light emitting element comprising a gas-filled arc discharge tube arranged in the form of a plurality of spaced apart coils, of progressively increasing diameter and having the configuration of a truncated helix, the longitudinal axis of which is substantially perpendicular to the plane of the lens, the major coil of said truncated helix being foremost in said housing, a lens arranged to be secured at the forward end of said housing, a pair of laterally spaced terminal blocks arranged to project from the rear wall of said housing, each one of the two ends of said light emitting element arranged to engage in one of said terminal blocks, and each terminal block having a pair of terminal posts for connecting said light emitting element to a source of electric energy.
Claim 2
Dependent Claim
158 words
A substantially glare-free vehicle headlight comprising: a reflector housing, a light emitting element constructed and arranged to be mounted in said housing adjacent the rear wall thereof said light emitting element comprising a gas-filled arc discharge tube arranged in the form of a plurality of spaced apart coils, of progressively increasing diameter and having the configuration of a truncated helix, the longitudinal axis of which is substantially perpendicular to the plane of the lens, the major coil of said truncated helix being foremost in said housing, a lens arranged to be secured at the forward end of said housing, a pair of laterally spaced terminal blocks arranged to project from the rear wall of said housing, each one of the two ends of said light emitting element arranged to engage in one of said terminal blocks, and each terminal block having a pair of terminal posts for connecting said light emitting element to a source of electric energy.
Claim 3
Dependent Claim
35 words
A substantially glare-free vehicle headlight according to claim 1 wherein said truncated helix comprises three coils of a fluorescent lamp the major coil being about twice the diameter of the smallest coil of said helix.
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) | 1979-10-12 | 1980-04-12 | 1980-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-12 | 1984-04-12 | 1984-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-12 | 1988-04-12 | 1988-10-12 | $7700.00 | Window Closed / Lapsed |