US4742653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible structures
Assignee: Individual
•
Filing: 1986-09-03
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Granted: 1988-05-10
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Expires: 2006-09-03
Abstract
Abstract A collapsible structure for use as temporary accommodation is in modular form, with a base upon which fold the walls and roof of the structure. The roof is hinged to one side wall and supported by the opposite side wall during erection of the structure, erection being possible by one man.
Inventors
- 👤 Valda C. Napier
- 👤 Donald S. Napier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:27
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/343; E04B1/344; E04B1/3445
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
139 words
A collapsible, transportable structure comprising a base having four corners and adapted to be located at a desired site, uprights provided at each of the four corners of the base, said uprights being formed with openings above said base, at least two opposite side walls and a roof supported by said side walls, the side walls being pivoted on pins engageable in said openings at a height above the base sufficient to allow each respective wall or roof to fold down to lie flat against the base and other walls, the roof being hinged to the top of one of said opposite side walls so that it lies flat against that side wall during storage and the initial stages of erection, but is adapted to swing upwardly of said one side wall to rest on said other side wall.
Claim 2
Dependent Claim
139 words
A collapsible, transportable structure comprising a base having four corners and adapted to be located at a desired site, uprights provided at each of the four corners of the base, said uprights being formed with openings above said base, at least two opposite side walls and a roof supported by said side walls, the side walls being pivoted on pins engageable in said openings at a height above the base sufficient to allow each respective wall or roof to fold down to lie flat against the base and other walls, the roof being hinged to the top of one of said opposite side walls so that it lies flat against that side wall during storage and the initial stages of erection, but is adapted to swing upwardly of said one side wall to rest on said other side wall.
Claim 3
Dependent Claim
32 words
A structure as claimed in claim 1 wherein a pair of rollers are provided on the top of said other side wall, and said rollers guide and balance the roof during erection.
Claim 4
Dependent Claim
84 words
A structure as claimed in claim 1 wherein another pair of side walls are provided to enable the structure to comprise an enclosed space having four walls and a roof, said another pair of side walls also being pivoted on variable height pins above the base, and at least one wall other than the final wall to be erected, having a door opening or an outwardly opening door to enable access to an upper or side edge of the final wall to be erected.
Claim 5
Dependent Claim
24 words
A structure as claimed in claim 1 wherein there is provided one or two other side walls which are added to the structure separately.
Claim 6
Dependent Claim
24 words
A structure as claimed in claim 1 wherein the walls are formed from metal clad polystyrene panels with a metal framework finishing the edges.
Claim 7
Dependent Claim
37 words
A structure as claimed in claim 1 wherein a torsion bar extends through the walls and acts as the pivot pin at either edge thereof, said torsion bar assisting in the initial lifting stages of the walls.
References Cited (Backward Citations)
CA690823A
Cited
US2712677A
Cited
US3460297A
Cited
US3849952A
Cited
US3992828A
Cited
US4027912A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-05-10 | 1991-11-09 | 1992-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-10 | 1995-11-09 | 1996-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-10 | 1999-11-09 | 2000-05-10 | $7700.00 | Window Closed / Lapsed |