US4272803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable trouble lamp support
Assignee: Individual
•
Filing: 1979-03-19
•
Granted: 1981-06-09
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Expires: 1999-03-19
Abstract
Abstract An adjustable trouble lamp support which includes a hook, a friction swivel and a clamping bracket for attaching the support to a trouble lamp. The hook includes a curved section and a shank section with the hook sufficiently large to substantially extend beyond the periphery of the trouble lamp cage at any angular position. The friction swivel includes a portion of the shank section that is attached on an incline to the center of a disc, a spring located around this portion of the shank section and a housing enclosing the spring and shank section whereby the spring is compressed and a frictional force is produced between the disc and housing.
Inventors
- 👤 Alton L. Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:26
CPC Classifications
F; F21; F21L; F21L14/00; F21L14/02; F21V; F21V21/00; F21V21/14; F21V21/145
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
204 words
An adjustable trouble lamp comprising: elongated electrical cord means; handle means; socket means secured to said handle means and to which said cord means is conductively connected, said socket means being for the purpose of conductively receiving a conventional bulb means; conventional lamp guard cage means attached to said handle means for the protection of said bulb means; a reflector surrounding part of the cage means for directing light from the bulb means in a particular direction; an elongated rod member attached to said cage means on the end opposite said handle means and protruding a short distance therefrom; a support comprising a hook including a curved section and a substantially straight shank section; friction swivel means pivotally connected to the shank section of said hook; and clamping bracket means fixedly attached to said friction swivel means and clamping said support to said elongated rod member, the hook being sufficiently large that the transverse distance from the line of attachment of the support to said elongated rod member to the outermost periphery of the hook is larger than the transverse distance from said line of attachment to the outermost periphery of the trouble lamp cage at any angular position of the trouble lamp cage.
Claim 2
Dependent Claim
204 words
An adjustable trouble lamp comprising: elongated electrical cord means; handle means; socket means secured to said handle means and to which said cord means is conductively connected, said socket means being for the purpose of conductively receiving a conventional bulb means; conventional lamp guard cage means attached to said handle means for the protection of said bulb means; a reflector surrounding part of the cage means for directing light from the bulb means in a particular direction; an elongated rod member attached to said cage means on the end opposite said handle means and protruding a short distance therefrom; a support comprising a hook including a curved section and a substantially straight shank section; friction swivel means pivotally connected to the shank section of said hook; and clamping bracket means fixedly attached to said friction swivel means and clamping said support to said elongated rod member, the hook being sufficiently large that the transverse distance from the line of attachment of the support to said elongated rod member to the outermost periphery of the hook is larger than the transverse distance from said line of attachment to the outermost periphery of the trouble lamp cage at any angular position of the trouble lamp cage.
Claim 3
Dependent Claim
90 words
An adjustable trouble lamp as defined in claim 1 wherein said frictional swivel means includes a portion of said shank section of the hook that is fixedly attached on an incline to the center of a flat disc, a resilient means located around said portion of the shank and a housing, with side and end walls, enclosing said resilient means and shank section wherein said resilient means is compressed and imparts a force to said disc, producing a frictional engagement between said disc and one end wall of said housing.
Claim 4
Dependent Claim
24 words
An adjustable trouble lamp as defined in claim 2 wherein said disc is inclined approximately 20° from a plane perpendicular to said shank section.
Claim 5
Dependent Claim
21 words
An adjustable trouble lamp as defined in claim 2 wherein said resilient means engages the inner surface of said side wall.
Claim 6
Dependent Claim
18 words
An adjustable trouble lamp as defined in claim 2 wherein said resilient means is a coil type spring.
Claim 7
Dependent Claim
48 words
An adjustable trouble lamp support as defined in claim 1 wherein the clamping bracket means includes two flat plates, said plates having their opposing surfaces sufficiently recessed to enable proper engagement with said rod member, and a plurality of bolts engaging said plates, providing the required clamping force.
Claim 8
Dependent Claim
187 words
An adjustable trouble lamp support for a conventional trouble lamp having an elongated electrical cord means, a handle means, socket means for retaining a bulb and having said electrical cord conductively connected thereto, a lamp guard cage means attached to the handle means for the protection of the bulb means, a reflector partially surrounding the cage means and an elongated rod member attached to the cage means and projecting outwardly therefrom, said support comprising: a hook including a curved section and a substantially straight shank section; friction swivel means pivotally connected to the shank section of said hook; and, clamping bracket means fixedly attached to said friction swivel means for clamping said support to such an elongated rod member of a trouble lamp, the hook being sufficiently large that the transverse distance from the line along which the clamping bracket means is designed to be clamped to said elongated rod member to the outermost periphery of the hook is greater than the distance between said line and the outermost periphery of the cage of such a trouble lamp regardless of the angular position of the trouble lamp.
Claim 9
Dependent Claim
187 words
An adjustable trouble lamp support for a conventional trouble lamp having an elongated electrical cord means, a handle means, socket means for retaining a bulb and having said electrical cord conductively connected thereto, a lamp guard cage means attached to the handle means for the protection of the bulb means, a reflector partially surrounding the cage means and an elongated rod member attached to the cage means and projecting outwardly therefrom, said support comprising: a hook including a curved section and a substantially straight shank section; friction swivel means pivotally connected to the shank section of said hook; and, clamping bracket means fixedly attached to said friction swivel means for clamping said support to such an elongated rod member of a trouble lamp, the hook being sufficiently large that the transverse distance from the line along which the clamping bracket means is designed to be clamped to said elongated rod member to the outermost periphery of the hook is greater than the distance between said line and the outermost periphery of the cage of such a trouble lamp regardless of the angular position of the trouble lamp.
Claim 10
Dependent Claim
92 words
An adjustable trouble lamp support as defined in claim 7 wherein said frictional swivel means includes a portion of said shank section of the hook that is fixedly attached on an incline to the center of a flat disc, a resilient means located around said portion of the shank, and a housing, with a side and end walls, enclosing said resilient means and shank section whereby said resilient means is compressed and imparts a force to said disc, producing a frictional engagement between said disc and one end wall of said housing.
Claim 11
Dependent Claim
19 words
An adjustable trouble lamp support as defined in claim 8 wherein said resilient means is a coil type spring.
Claim 12
Dependent Claim
22 words
An adjustable trouble lamp support as defined in claim 8 wherein said resilient means engages the inner surface of said side wall.
Claim 13
Dependent Claim
25 words
An adjustable trouble lamp support as defined in claim 8 wherein said disc is inclined approximately 20° from a plane perpendicular to said shank section.
Claim 14
Dependent Claim
48 words
An adjustable trouble lamp support as defined in claim 7 wherein the clamping bracket means includes two flat plates, said plates having their opposing surfaces sufficiently recessed to enable proper engagement with said rod member, and a plurality of bolts engaging said plates, providing the required clamping force.
References Cited (Backward Citations)
US2653219A
Cited
US3808420A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-06-08 | 1984-12-08 | 1985-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-08 | 1988-12-08 | 1989-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-08 | 1992-12-08 | 1993-06-09 | $7700.00 | Window Closed / Lapsed |