Patent CA503197A successfully refreshed from Google Patents.
Patent US4070808A successfully refreshed from Google Patents.
US4070808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable wall structure
Assignee: Individual
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Filing: 1976-07-26
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Granted: 1978-01-31
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Expires: 1996-07-26
Abstract
Abstract A wall structure to be used as a partition, screen or the like comprises a plurality of panels with vertical edges attached to resilient profiles of the same or lesser height having strip portions which are substantially cylindrically curved over an arc of slightly more than 180°, these curved portions being peripherally interconvoluted about a common vertical axis forming the intersection of the vertical longitudinal midplanes of all the panels. The tubular hinge formed by the interconvoluted portions is immobilizable, in any relative angular position of the panels, by expandable plugs inserted into it from opposite ends.
Inventors
- 👤 Septimius Danescu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:22
CPC Classifications
F; F16; F16B; F16B5/00; F16B5/07; E; E04; E04B; E04B2/00; E04B2/74; E04B2/7407; E04B2/7416; E04B2/7422; E04B2/7427
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
78 words
An adjustable wall structure comprising: a plurality of upright panels; a plurality of resilient upright profiles respectively secured to said panels at vertical edges thereof, said profiles having resilient strip portions substantially cylindrically curved about a common vertical axis in peripherally interconvoluted relationship, thereby forming a tubular hinge interconnecting said panels with freedom of relative swinging about said axis; and clamp means engaging said tubular hinge for relatively immobilizing said strip portions in face-to-face contact with one another.
Claim 2
Dependent Claim
78 words
An adjustable wall structure comprising: a plurality of upright panels; a plurality of resilient upright profiles respectively secured to said panels at vertical edges thereof, said profiles having resilient strip portions substantially cylindrically curved about a common vertical axis in peripherally interconvoluted relationship, thereby forming a tubular hinge interconnecting said panels with freedom of relative swinging about said axis; and clamp means engaging said tubular hinge for relatively immobilizing said strip portions in face-to-face contact with one another.
Claim 3
Dependent Claim
25 words
A wall structure as defined in claim 1 wherein said curved strip portions extend each over an arc slightly greater than 180° about said axis.
Claim 4
Dependent Claim
21 words
A wall structure as defined in claim 1 wherein said curved strip portions progressively decrease in thickness away from said panels.
Claim 5
Dependent Claim
25 words
A wall structure as defined in claim 1 wherein said profiles include straight flanges angularly adjoining said curved strip portions and engaging the respective panels.
Claim 6
Dependent Claim
24 words
A wall structure as defined in claim 4 wherein said panels are provided along said vertical edges with vertical median slots receiving said flanges.
Claim 7
Dependent Claim
24 words
A wall structure as defined in claim 1 wherein said profiles include vertically channeled extensions of said curved strip portions engaging the respective panels.
Claim 8
Dependent Claim
19 words
A wall structure as defined in claim 1 wherein said panels have vertical longitudinal midplanes intersecting along said axis.
Claim 9
Dependent Claim
24 words
A wall structure as defined in claim 1 wherein said clamp means comprises at least one radially expandable plug inserted into said tubular hinge.
Claim 10
Dependent Claim
35 words
A wall structure as defined in claim 8 wherein said plug comprises an elastically deformable jacket and a screw-threaded core in said jacket accessible from an end of said tubular hinge for expanding said jacket.
Claim 11
Dependent Claim
17 words
A wall structure as defined in claim 8, further comprising a supporting base secured to said plug.
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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) | 1981-01-30 | 1981-08-01 | 1982-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-30 | 1985-08-01 | 1986-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-30 | 1989-08-01 | 1990-01-31 | $7700.00 | Window Closed / Lapsed |