US4245283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lampshade with arcuate walled flexible connecting mechanism
Assignee: Individual
•
Filing: 1978-06-19
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Granted: 1981-01-13
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Expires: 1998-06-19
Abstract
Abstract A lampshade for mounting on a lamp for varying the illumination intensity of the lamp which allows flexible lampshade panels to be removeably mounted in various shapes to a frame. The frame includes a plurality of rigid, vertical support members with each support having a pair of arcuate shaped rigid supports which form a concave frame recess for receiving one side edge of a panel which is inserted between adjacent frame members. In an alternate embodiment, a flexible connector having a pair of arcuate walls connected by a central wall perpendicular thereto is disposed in a slot in a rigid vertical support member which allows for flexibly tensioning panels connected thereto along their sides. In either embodiment the particular final shape of the panel between adjacent frame members may be altered depending on the distance between the support members and the size of the panel inserted therein.
Inventors
- 👤 Wilbur F. Hahlen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:48
CPC Classifications
F; F21; F21V; F21V1/00; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44573; Y10T24/4459
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
193 words
A lampshade device having a plurality of removable light diffusing panels comprising: at least three rigid vertically disposed frame members, each of said frame members including a first rigid vertical support means having an arcuate wall portion and a second support means connected to said first member having a wall portion, said members connected together so that the adjacent wall portions provide a lampshade panel recess; a means for rigidly connecting said vertical frame members together; and a plurality of flexible light diffusing lampshade panels including side edges, each of said panels tensionally connected between adjacent frame members, said side edges of said panels connected in said recess formed by said frame member and said support means, said first frame member is a rigid tubular frame member having a slot disposed along a longitudinal portion, said support means is a plurality of flexible connectors, each flexible connector having first and second arcuate walls connected by a generally straight wall positioned so that said first arcuate wall provides gripping jaws in relation to the outside surface of said frame member, and said second arcuate wall being positioned on the inside of said frame member.
Claim 2
Dependent Claim
193 words
A lampshade device having a plurality of removable light diffusing panels comprising: at least three rigid vertically disposed frame members, each of said frame members including a first rigid vertical support means having an arcuate wall portion and a second support means connected to said first member having a wall portion, said members connected together so that the adjacent wall portions provide a lampshade panel recess; a means for rigidly connecting said vertical frame members together; and a plurality of flexible light diffusing lampshade panels including side edges, each of said panels tensionally connected between adjacent frame members, said side edges of said panels connected in said recess formed by said frame member and said support means, said first frame member is a rigid tubular frame member having a slot disposed along a longitudinal portion, said support means is a plurality of flexible connectors, each flexible connector having first and second arcuate walls connected by a generally straight wall positioned so that said first arcuate wall provides gripping jaws in relation to the outside surface of said frame member, and said second arcuate wall being positioned on the inside of said frame member.
Claim 3
Dependent Claim
236 words
A lampshade device having a plurality of removable light diffusing panels comprising: at least three rigid vertically disposed frame members, each of said frame member including a first rigid vertical support means having an arcuate wall portion and a second support means connected to said first member having a wall portion, said members connected together so that the adjacent wall portions provide a lampshade panel recess; a means for rigidly connecting said vertical frame members together; and a plurality of flexible light diffusing lampshade panels including side edges, each of said panels tensionally connected between adjacent frame members, said side edges of said panels connected in said recess formed by said frame member and said support means, said first frame member is a rigid tubular frame member having a slot disposed along a portion longitudinally; said support means is a plurality of flexible connectors, each flexible connector having first and second arcuate walls connected by a generally straight wall positioned so that said first arcuate wall provides gripping jaws in relation to the outside surface of said frame member, and said second arcuate wall being positioned on the inside of said frame member and contoured to bias said first arcuate wall against the outside surface of said frame member; a means connected to said first frame member and said flexible connector to move said first arcuate wall away from the outside surface of said frame member.
Claim 4
Dependent Claim
236 words
A lampshade device having a plurality of removable light diffusing panels comprising: at least three rigid vertically disposed frame members, each of said frame member including a first rigid vertical support means having an arcuate wall portion and a second support means connected to said first member having a wall portion, said members connected together so that the adjacent wall portions provide a lampshade panel recess; a means for rigidly connecting said vertical frame members together; and a plurality of flexible light diffusing lampshade panels including side edges, each of said panels tensionally connected between adjacent frame members, said side edges of said panels connected in said recess formed by said frame member and said support means, said first frame member is a rigid tubular frame member having a slot disposed along a portion longitudinally; said support means is a plurality of flexible connectors, each flexible connector having first and second arcuate walls connected by a generally straight wall positioned so that said first arcuate wall provides gripping jaws in relation to the outside surface of said frame member, and said second arcuate wall being positioned on the inside of said frame member and contoured to bias said first arcuate wall against the outside surface of said frame member; a means connected to said first frame member and said flexible connector to move said first arcuate wall away from the outside surface of said frame member.
Claim 5
Dependent Claim
25 words
A lampshade device as in claim 2, wherein said means connected to said first frame member and said flexible connector includes: a cam and lever.
References Cited (Backward Citations)
US912426A
Cited
US1867562A
Cited
US2608644A
Cited
US2683800A
Cited
US3582643A
Cited
CA924276A
Cited
US3689762A
Cited
US3764801A
Cited
US3757110A
Cited
US4061913A
Cited
US4091815A
Cited
US4143411A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-01-13 | 1984-07-14 | 1985-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-13 | 1988-07-14 | 1989-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-13 | 1992-07-14 | 1993-01-13 | $7700.00 | Window Closed / Lapsed |