US4464600A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lamp unit having accurately positioned filament
Assignee: General Electric Co
•
Filing: 1982-05-21
•
Granted: 1984-08-07
•
Expires: 2002-05-21
Abstract
Abstract A light bulb is held by a base having an outer base member surrounding an inner member holding the bulb and which is secured to the outer base member after being adjusted longitudinally, laterally, and rotationally with respect thereto, as needed, to accurately position the bulb's filament with respect to the outer base member. No cement or adhesive is in contact with the light bulb.
Inventors
- 👤 Walter J. Kosmatka
- 👤 Frank E. Zalar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:54
CPC Classifications
H; H01; H01K; H01K1/00; H01K1/42; H01K1/46; H01R; H01R33/00; H01R33/05; H01R33/06; H01R33/09
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
170 words
A lamp unit comprising a light bulb secured to a base, said light bulb containing a light source and having lead-in wires extending externally of the bulb, and said base comprising an inner member secured to said light bulb, lamp alignment and support means fitted within said inner base member to frictionally engage the light bulb in a fixed position aligned with respect to said inner base member, and an outer cup-shaped base member at least partly surrounding and spaced from said inner base member around the periphery and bottom thereof, the bottom of said cup-shaped outer base member being provided with openings into which said lead-in wires of the light bulb extend, and means securing said inner base member to said outer cup-shaped base member, whereby prior to said securing of the base members said light bulb and inner base members are longitudinally, laterally, and rotationally movable with respect to said outer base member thereby permitting accurate alignment of said light source with respect to said outer base member.
Claim 2
Dependent Claim
170 words
A lamp unit comprising a light bulb secured to a base, said light bulb containing a light source and having lead-in wires extending externally of the bulb, and said base comprising an inner member secured to said light bulb, lamp alignment and support means fitted within said inner base member to frictionally engage the light bulb in a fixed position aligned with respect to said inner base member, and an outer cup-shaped base member at least partly surrounding and spaced from said inner base member around the periphery and bottom thereof, the bottom of said cup-shaped outer base member being provided with openings into which said lead-in wires of the light bulb extend, and means securing said inner base member to said outer cup-shaped base member, whereby prior to said securing of the base members said light bulb and inner base members are longitudinally, laterally, and rotationally movable with respect to said outer base member thereby permitting accurate alignment of said light source with respect to said outer base member.
Claim 3
Dependent Claim
24 words
A lamp unit as claimed in claim 1, in which means securing said inner and outer base members together comprises an adhesive material therebetween.
Claim 4
Dependent Claim
18 words
A lamp unit as claimed in claim 2, in which said adhesive material comprises a foaming polymetric compound.
Claim 5
Dependent Claim
45 words
A lamp unit as claimed in claim 1, in which said light bulb comprises a pinch seal, and in which said inner base member is tubular and said lamp alignment and lamp support means is provided with fingers resiliently in engagement against said pinch seal.
Claim 6
Dependent Claim
22 words
A lamp unit as claimed in claim 1, in which said inner base member and said outer base member have circular cross-sections.
Claim 7
Dependent Claim
37 words
A lamp unit as claimed in claim 1, in which said outer base member is provided with terminals attached thereto by integral eyelets extending through said openings, said lead-in wires of the lamp extending into said eyelets.
Claim 8
Dependent Claim
18 words
A lamp unit as claimed in claim 5, in which said lead-in wires are soldered to said eyelets.
References Cited (Backward Citations)
US2884555A
Cited
US3315216A
Cited
US3469140A
Cited
US3885149A
Cited
US4012658A
Cited
US4287448A
Cited
US4396860A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-08-07 | 1988-02-06 | 1988-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-07 | 1992-02-06 | 1992-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-07 | 1996-02-06 | 1996-08-07 | $7700.00 | Window Closed / Lapsed |