§
Luxuse
Patent Intelligence
Sign In
← Back to Patent Explorer
US4225904A Expired / Lapsed US ⏱️ 0.0 years remaining

Fog filter for headlights

Assignee: Individual
•
Filing: 1978-05-18
•
Granted: 1980-09-30
•
Expires: 1998-05-18
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A fog filter for automobile headlights consists of a lens cover in the form of a sheet of smooth transparent plastic material, preferably of an amber color, and which has a circular outline and a diameter corresponding to that of the standard sealed beam automobile lens. The lens cover is secured at its periphery to a rim portion having formed integrally therewith a continuous magnet which cooperates with the metal rim of the automobile headlight to secure the filter or lens cover in place. Two types of lens covers or filters are disclosed. One is a complete filter or lens cover for the two high-beam lenses of a double headlight system wherein the filter of lens cover is amber or other suitable color. The other form of filter or lens cover is for single headlights having both the high-beam and low-beam in the same lamp wherein the filter or lens cover is clear in the lower half thereof and amber colored or the like in the upper half. Both forms of filter or lens cover have a continuous magnet extending around the entire periphery thereof to secure the same in place by magnet attraction to the metal rim surrounding the headlight.

Inventors

  • 👤 Bill Linder

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 12:25
CPC Classifications
B; B60; B60Q; B60Q1/00; B60Q1/02; B60Q1/04; B60Q1/0408; B60Q1/0458; F; F21; F21S; F21S41/00; F21S41/10; F21S41/12; F21S41/125; F21S41/20; F21S41/29; F21V; F21V17/00; F21V17/10; F21V17/105

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 106 words
The combination with automobile headlights of the sealed-beam type, having a low beam filament and a high beam filament, of a removable light filter having at least a portion of amber or yellow color, said filter being positioned so that the colored portion covers only the high beam filament portion, and said filter having a continuous peripheral rim of magnetic material cooperable with the rim of the headlight on which it is fitted to provide a tight continuous seal, said combination being effective to project a beam of white light on low beam setting and a beam of amber of yellow light on high beam setting.
Claim 2
Dependent Claim 106 words
The combination with automobile headlights of the sealed-beam type, having a low beam filament and a high beam filament, of a removable light filter having at least a portion of amber or yellow color, said filter being positioned so that the colored portion covers only the high beam filament portion, and said filter having a continuous peripheral rim of magnetic material cooperable with the rim of the headlight on which it is fitted to provide a tight continuous seal, said combination being effective to project a beam of white light on low beam setting and a beam of amber of yellow light on high beam setting.
Claim 3
Dependent Claim 51 words
The combination according to claim 1 in which said filter is of clear plastic material having at least the portion covering the high beam portion of the headlights made of amber or yellow colored material, and said rim portion is of a size accurately fitting the retaining rim for the headlight.
Claim 4
Dependent Claim 33 words
The combination according to claim 2 in which said automobile headlights are of the twin headlight type and said filter is fitted over the high beam headlight having the low beam headlight unobstructed.
Claim 5
Dependent Claim 72 words
The combination according to claim 2 in which said automobile headlights are of the single beam type having a high beam filament and a low beam filament in the same headlight, and said filter is approximately half clear and half amber or yellow colored and is fitted over said headlight with the clear portion in front of the low beam filament and the colored portion in front of the high beam filament.
Claim 6
Dependent Claim 19 words
The combination according to claim 2 in which said rim of said filter contains a single continuous magnet therein.
Claim 7
Dependent Claim 20 words
The combination according to claim 2 in which said rim of said filter contains a plurality of closely spaced magnets.

References Cited (Backward Citations)

US2499555A Cited
US2550594A Cited
US2807711A Cited
US3191025A Cited
US3334220A Cited
US3350557A Cited
US3593021A Cited
US3696238A Cited
US4006377A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1983-09-30 1984-03-31 1984-09-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1987-09-30 1988-03-31 1988-09-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1991-09-30 1992-03-31 1992-09-30 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag