US3729627A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable lamp assembly
Assignee: Individual
•
Filing: 1971-12-17
•
Granted: 1973-04-24
•
Expires: 1991-12-17
Abstract
Abstract An adjustable lamp assembly comprising a pair of spaced parallel mounting bars adapted to be connected to a chair back by way of a pair of channel members mounted at their opposite ends, a lamp fixture connected to a support member adapted to be selectively positioned at any point along the mounting bars, the support member being pivotally adjustable with respect to the mounting bars to provide additional adjustment or to swing the lamp fixture behind the chair back when not in use.
Inventors
- 👤 N Littell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:33
CPC Classifications
F; F21; F21V; F21V33/00; F21V33/0004; F21V33/0012; A; A47; A47C; A47C7/00; A47C7/62; A47C7/72; A47C7/725; F21V21/00; F21V21/14; F21V21/32
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
146 words
An adjustable lamp assembly for mounting to a chair back, said assembly comprising a pair of elongated, rigid mounting bars in spaced parallel relation to each other, a pair of rigid channel members each receiving an opposite end portion of said pair of mounting bars, a pair of relatively rigid mounting straps each pivotally connected to a different one of said channel members and adapted to be fastened to the chair back, fastening means associated with each channel member for adjusting its position along the length of said mounting bars, a travel base adjustably connected to said mounting bars for manual positioning along the length thereof between said channel members, a rigid support member removably fastened to said travel base, and a lamp fixture connected to said support member such that its position may be adjusted by movement of said travel base along said mounting bars.
Claim 2
Dependent Claim
146 words
An adjustable lamp assembly for mounting to a chair back, said assembly comprising a pair of elongated, rigid mounting bars in spaced parallel relation to each other, a pair of rigid channel members each receiving an opposite end portion of said pair of mounting bars, a pair of relatively rigid mounting straps each pivotally connected to a different one of said channel members and adapted to be fastened to the chair back, fastening means associated with each channel member for adjusting its position along the length of said mounting bars, a travel base adjustably connected to said mounting bars for manual positioning along the length thereof between said channel members, a rigid support member removably fastened to said travel base, and a lamp fixture connected to said support member such that its position may be adjusted by movement of said travel base along said mounting bars.
Claim 3
Dependent Claim
70 words
The structure set forth in claim 1 wherein each of said channel members includes an open slot between a pair of oppositely disposed flange portions, said slot being aligned with the space separating said mounting bars, said flange portions overlapping the mounting bars, and said fastening means including first and second pairs of threaded fasteners each embracing a spacer which is effective to maintain the spacing between said mounting bars.
Claim 4
Dependent Claim
39 words
The structure set forth in claim 2 wherein said mounting bars include oppositely disposed surfaces facing the space therebetween, said spacer comprising a generally cylindrically shaped member engaging said oppositely disposed surfaces to maintain the spacing between said bars.
Claim 5
Dependent Claim
21 words
The structure set forth in claim 3 wherein said spacer comprises a coil compression spring surrounding one of said threaded fasteners.
Claim 6
Dependent Claim
31 words
The structure set forth in claim 4 wherein said first and second pairs of threaded fasteners each includes one threaded fastener which passes through a hole in the associated channel member.
Claim 7
Dependent Claim
71 words
The structure set forth in claim 1 wherein said travel base is adjustably connected to said mounting bars by a pair of threaded members and a cylindrical sleeve with an axial bore therein, one of said threaded members passing through said axial bore and through aligned apertures in said travel base and support member, said sleeve engaging at least one of said mounting bars in the area adjacent the space therebeTween.
Claim 8
Dependent Claim
26 words
The structure set forth in claim 6 wherein said sleeve is rotatably mounted to said one threaded member and in rolling relation to said mounting bars.
Claim 9
Dependent Claim
30 words
The structure set forth in claim 7 wherein said support member and said travel base include detent means for relative rotational adjustment of said lamp fixture about said aligned apertures.
Claim 10
Dependent Claim
25 words
The structure set forth in claim 8 wherein said assembly includes an electric plug associated with said lamp fixture pivotally mounted to said support member.
Claim 11
Dependent Claim
70 words
The structure set forth in claim 8 wherein each of said channel members includes an open slot between a pair of oppositely disposed flange portions, said slot being aligned with the space separating said mounting bars, said flange portions overlapping the mounting bars, and said fastening means including first and second pairs of threaded fasteners each embracing a spacer which is effective to maintain the spacing between said mounting bars.
Claim 12
Dependent Claim
39 words
The structure set forth in claim 10 wherein said mounting bars include oppositely disposed surfaces facing the space therebetween, said spacer comprising a generally cylindrically shaped member engaging said oppositely disposed surfaces to maintain the spacing between said bars.
Claim 13
Dependent Claim
21 words
The structure set forth in claim 11 wherein said spacer comprises a coil compression spring surrounding one of said threaded fasteners.
Claim 14
Dependent Claim
31 words
The structure set forth in claim 12 wherein said first and second pairs of threaded fasteners each includes one threaded fastener which passes through a hole in the associated channel member.
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) | 1976-04-23 | 1976-10-23 | 1977-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-23 | 1980-10-23 | 1981-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-23 | 1984-10-23 | 1985-04-24 | $7700.00 | Window Closed / Lapsed |