US4156271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reflector lamp
Assignee: General Electric Co
•
Filing: 1976-05-05
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Granted: 1979-05-22
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Expires: 1996-05-05
Abstract
Abstract A reflector lamp is disclosed in which the lamp includes an integral reflector with the filament of the lamp in a predetermined relation with the focus of the reflector.
Inventors
- 👤 Joseph F. Vercellotti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:10
CPC Classifications
F; F21; F21V; F21V19/00; F21V19/0005
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
169 words
A lamp having an integral reflector comprising: a paraboloidal surface having a reflective layer on the concave side thereof; a tubular section extending from the convex side of said surface at the vertex of the paraboloid; an all-glass incandescent lamp, having the filament located with respect to the end of the bulbous portion thereof, located within and protruding from said tubular section, said tubular section frictionally engaging the bulbous portion of said lamp and radially locating said lamp with respect to the axis of said paraboloid; means for securing said lamp in position in a direction parallel to the axis of said paraboloid; contact means connected to at least one of the wire leads from said lamp and further comprising a key connected to the convex side of said surface and to said tubular section, from which it extends radially; wherein said contact means comprises a plug pressed into said tubular section, electrically and mechanically engaging said one lead and wherein said other lead is formed over said key.
Claim 2
Dependent Claim
169 words
A lamp having an integral reflector comprising: a paraboloidal surface having a reflective layer on the concave side thereof; a tubular section extending from the convex side of said surface at the vertex of the paraboloid; an all-glass incandescent lamp, having the filament located with respect to the end of the bulbous portion thereof, located within and protruding from said tubular section, said tubular section frictionally engaging the bulbous portion of said lamp and radially locating said lamp with respect to the axis of said paraboloid; means for securing said lamp in position in a direction parallel to the axis of said paraboloid; contact means connected to at least one of the wire leads from said lamp and further comprising a key connected to the convex side of said surface and to said tubular section, from which it extends radially; wherein said contact means comprises a plug pressed into said tubular section, electrically and mechanically engaging said one lead and wherein said other lead is formed over said key.
Claim 3
Dependent Claim
44 words
The lamp as set forth in claim 1 wherein said tubular section contains a slot in the end thereof, said slot being radially aligned with said key and said other lead passing through said slot for electrically isolating said othe lead from said plug.
Claim 4
Dependent Claim
21 words
The lamp as set forth in claim 2 wherein the free end of said other lead is fastened to said key.
Claim 5
Dependent Claim
17 words
The lamp as set forth in claim 3 wherein said free end is embedded in said key.
Claim 6
Dependent Claim
125 words
In a flashlight comprising a case adapted to contain at least one electrical battery, a light source, a transparent cover for said light source, and a switch for selectively closing the electrical circuit between said battery and said light source, wherein the improvement is a light source comprising: a reflector having a paraboloidal reflecting surface and a neck portion extending from the vertex of said paraloloidal surface, an all-glass incandescent lamp having the bulbous portion thereof partially contained within said neck to locate the filament of said lamp with respect to the focus of said paraboloidal reflector, and wherein said reflector further comprises a key extending radially from said neck and a lead from said lamp overlies said key for making contact with said switch.
Claim 7
Dependent Claim
125 words
In a flashlight comprising a case adapted to contain at least one electrical battery, a light source, a transparent cover for said light source, and a switch for selectively closing the electrical circuit between said battery and said light source, wherein the improvement is a light source comprising: a reflector having a paraboloidal reflecting surface and a neck portion extending from the vertex of said paraloloidal surface, an all-glass incandescent lamp having the bulbous portion thereof partially contained within said neck to locate the filament of said lamp with respect to the focus of said paraboloidal reflector, and wherein said reflector further comprises a key extending radially from said neck and a lead from said lamp overlies said key for making contact with said switch.
References Cited (Backward Citations)
US2575790A
Cited
US1286800A
Cited
US2277633A
Cited
US2592102A
Cited
US2818498A
Cited
US3128050A
Cited
US3209138A
Cited
US3314331A
Cited
US3488543A
Cited
US3462803A
Cited
DE1958896A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-05-21 | 1982-11-20 | 1983-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-21 | 1986-11-20 | 1987-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-21 | 1990-11-20 | 1991-05-22 | $7700.00 | Window Closed / Lapsed |