US4405877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variably positional lamp holder assembly
Assignee: Osram Sylvania Inc
•
Filing: 1981-12-11
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Granted: 1983-09-20
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Expires: 2001-12-11
Abstract
Abstract A variably positional lamp holder has a base that provides for limited rotational movement relative to the lamp holder body to allow projecting arms on the body to be positioned to allow mounting freedom for a harp.
Inventors
- 👤 Thomas Haraden
- 👤 Harold L. Hough
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:04
CPC Classifications
F; F21; F21V; F21V19/00; F21V19/0075
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
85 words
A variably positional lamp holder assembly comprising: a housing having a longitudinal extending central body with a plurality of radial arms attached thereto and transversely projecting therefrom, the terminal ends of said arms remote from said housing being formed to receive and hold a circular fluorescent lamp; said body having a lower portion carrying an electrically conductive base, said base being fixed to said lower portion in a manner to allow a limited amount of rotational movement of said base relative to said lower portion.
Claim 2
Dependent Claim
85 words
A variably positional lamp holder assembly comprising: a housing having a longitudinal extending central body with a plurality of radial arms attached thereto and transversely projecting therefrom, the terminal ends of said arms remote from said housing being formed to receive and hold a circular fluorescent lamp; said body having a lower portion carrying an electrically conductive base, said base being fixed to said lower portion in a manner to allow a limited amount of rotational movement of said base relative to said lower portion.
Claim 3
Dependent Claim
38 words
The assembly of claim 1 wherein said manner of allowing said limited amount of rotational movement comprises: a circumferentially extending slot formed in said lower portion and a pin fixed on said base which projects into said slot.
Claim 4
Dependent Claim
24 words
The assembly of claim 2 wherein said lower portion is provided with screw threads and said base has an internal thread which mates therewith.
Claim 5
Dependent Claim
12 words
The assembly of claim 3 wherein said base has external screw threads.
Claim 6
Dependent Claim
47 words
The assembly of claim 1 wherein said manner of allowing said limited amount of rotational movement comprises: two diametrically opposed circumferentially extending slots formed in said lower portion and two diametrically opposed pins fixed on said base, each of said pins projecting into one of said slots.
Claim 7
Dependent Claim
20 words
The assembly of claim 5 wherein the length of said slots determines the amount of rotational movement of said base.
References Cited (Backward Citations)
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-09-19 | 1987-03-21 | 1987-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-09-19 | 1991-03-21 | 1991-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-09-19 | 1995-03-21 | 1995-09-20 | $7700.00 | Window Closed / Lapsed |