US3909607A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealed-beam lamp construction
Assignee: EMI Group Ltd
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Filing: 1973-10-18
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Granted: 1975-09-30
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Expires: 1993-10-18
Abstract
Abstract A lighting unit, especially a sealed beam unit, having a light bulb mounted on a reflector by means of sheet metal legs extending from the lamp press and serving as lead-in conductors for the bulb, the legs interengaging with mounting posts sealed through the reflector to establish the position of the bulb relative to the reflector and provide an electrical connection to the bulb.
Inventors
- 👤 Arthur Samuel Vause
- 👤 Frank Woodward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:11
CPC Classifications
F; F21; F21V; F21V19/00; F21V19/0005
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
77 words
In a lighting unit having a reflector and a light bulb mounted on said reflector, the improvement comprising sheet metal legs which enter the bulb and serve as lead-in conductors, the free ends of said legs each having apertures, and coupling means having parts shaped for engaging said apertures and mechanically cooperating to establish the bulb in a predetermined position relative to the reflector, said parts also forming electrical connections between said legs and said coupling means.
Claim 2
Dependent Claim
77 words
In a lighting unit having a reflector and a light bulb mounted on said reflector, the improvement comprising sheet metal legs which enter the bulb and serve as lead-in conductors, the free ends of said legs each having apertures, and coupling means having parts shaped for engaging said apertures and mechanically cooperating to establish the bulb in a predetermined position relative to the reflector, said parts also forming electrical connections between said legs and said coupling means.
Claim 3
Dependent Claim
34 words
A lighting unit as claimed in claim 1 in which the coupling means comprise posts passing through the reflector and through the said apertures, the said free ends extending approximately perpendicular to the legs.
Claim 4
Dependent Claim
45 words
A lighting unit as claimed in claim 2 in which the reflector is of metal and the posts are surrounded by electrically-insulating sleeves which pass through the reflector and terminate short of the inner ends of the posts, the feet abutting against the insulating sleeves.
Claim 5
Dependent Claim
18 words
A lighting unit as claimed in claim 2 in which the feet are mechanically clamped to the posts.
Claim 6
Dependent Claim
38 words
A lighting unit as claimed in claim 1 in which the bulb is sealed by a pinch seal, and the legs pass through the pinch seal and are integral with a sheet metal supporting element within the bulb.
Claim 7
Dependent Claim
79 words
In a sealed-beam lighting unit having a light bulb mounted on a reflector, the improvement comprising mounting means for said light bulb comprising sheet metal legs extending through a press-seal of the light bulb and serving as lead-in conductors, coupling means sealed through said reflector to form an electrical connection to said legs, aperture means formed on said legs, and said coupling means engaging said aperture means to establish the location of said light bulb relative to said reflector.
Claim 8
Dependent Claim
79 words
In a sealed-beam lighting unit having a light bulb mounted on a reflector, the improvement comprising mounting means for said light bulb comprising sheet metal legs extending through a press-seal of the light bulb and serving as lead-in conductors, coupling means sealed through said reflector to form an electrical connection to said legs, aperture means formed on said legs, and said coupling means engaging said aperture means to establish the location of said light bulb relative to said reflector.
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) | 1978-09-29 | 1979-03-31 | 1979-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-29 | 1983-03-31 | 1983-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-29 | 1987-03-31 | 1987-09-30 | $7700.00 | Window Closed / Lapsed |