US4772991A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lamp construction
Assignee: Individual
•
Filing: 1987-07-02
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Granted: 1988-09-20
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Expires: 2007-07-02
Abstract
Abstract In a lamp, a construction is set forth including a low voltage power source including an adjustable supply to a transformer in a base wherein the transformer is connected with a pair of coextensive arms. The arms are preferably made of metal and are the conductors. The voltage level is intrinsically safe. The arms extend to remotely support a housing with a bulb therein. The housing has a pair of oppositely positioned sockets and the arm supports miniature banana plugs which stab into the sockets to provide electrical current for bulb operation and to also serve as a pivot for the housing. In addition, a greater measure of freedom is obtained by incorporating a pivot wherein the arms pivotally connect with a second pair of coextensive arms to provide an added degree of freedom.
Inventors
- 👤 Coleman Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:48
CPC Classifications
F; F21; F21S; F21S6/00; F21S6/002; F21S6/003; F21V; F21V21/00; F21V21/14; F21V21/30; F21V23/00; F21V23/02; F21V23/04
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
111 words
A lighting system providing illumination from a low voltage power source, the system comprising: (a) a base supporting a low voltage power source; (b) a pair of coextensive arms extending from said base and acting as electrical current carriers so that low voltage power is delivered through said coextensive arms; (c) a second pair of coextensive arms spaced from one another; (d) a pair of brackets joined to said second pair of arms; made of electrically non-conductive material wherein said pivot means rotationally join said first pair are connected to said first pair of arms to power source, through said first arms, through said pivot means and to said second arms.
Claim 2
Dependent Claim
111 words
A lighting system providing illumination from a low voltage power source, the system comprising: (a) a base supporting a low voltage power source; (b) a pair of coextensive arms extending from said base and acting as electrical current carriers so that low voltage power is delivered through said coextensive arms; (c) a second pair of coextensive arms spaced from one another; (d) a pair of brackets joined to said second pair of arms; made of electrically non-conductive material wherein said pivot means rotationally join said first pair are connected to said first pair of arms to power source, through said first arms, through said pivot means and to said second arms.
Claim 3
Dependent Claim
28 words
The apparatus of claim 1 wherein said bracket is printed circuit board material and has conductor paths formed thereon as a metal ply affixed to a face thereof.
Claim 4
Dependent Claim
23 words
The apparatus of claim 2 wherein said first pair of arms are conductive metal and said second pair of arms are conductive metal.
Claim 5
Dependent Claim
15 words
The apparatus of claim 3 wherein said bracket comprises a pair of spaced sheet insulators.
Claim 6
Dependent Claim
21 words
The apparatus of claim 4 wherein said spaced sheet insulator members are bolted to said first and second pairs of arms.
Claim 7
Dependent Claim
18 words
The apparatus of claim 5 wherein said pivot means comprise electrically conductive members extending from said bracket means.
Claim 8
Dependent Claim
26 words
The structure of claim 2 including a generally square housing a bulb in said housing wherein said housing includes means for directing light from said housing;
Claim 9
Dependent Claim
48 words
The apparatus of claim 7 wherein said housing incorporates an internal mounting plate supporting a lamp base adapted to receive said bulb therein, and said base and bulb are positioned relative to a light reflector in said housing to direct light out of said housing from said bulb.
Claim 10
Dependent Claim
29 words
The apparatus of claim 8 wherein said housing has an open side and a parallel back side positioning in said light reflector to direct light out of said housing.
Claim 11
Dependent Claim
46 words
The apparatus of claim 9 wherein said housing has a surrounding wall between said open side and closed side and said surrounding wall supports said two pivot means opposite of one another on a pair of L-shaped mounting brackets appended to the end of said arms.
Claim 12
Dependent Claim
22 words
The application of claim 10 wherein said mounting brackets are insulated electrically to define two separate current flow paths for said bulb.
Claim 13
Dependent Claim
71 words
The apparatus of claim 1 wherein said pivot means includes: (a) an end portion of a first arm of said first pair of arms; (b) an end portion of a first arm of said second pair of arms; (c) conductive metal contacting areas on said arm end portions; and (d) bolt and cooperative threaded nut means clamping said end portions to one of said brackets to create an electrical pathway therethrough.
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) | 1991-09-20 | 1992-03-21 | 1992-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-20 | 1996-03-21 | 1996-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-20 | 2000-03-21 | 2000-09-20 | $7700.00 | Window Closed / Lapsed |