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US4733507A Expired / Lapsed US ⏱️ 0.0 years remaining

Isolation hut

Assignee: SA DOUBLET FESTITUB A CORP OF FRANCE
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Filing: 1986-09-15
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Granted: 1988-03-29
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Expires: 2006-09-15
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Abstract

Abstract This isolation hut intended for temporary or provisional use, notably as a polling-booth during elections or like events, or as a transportable trying cubicle, a dressing-room during occasional events, or the like, consists of a frame structure made from a basic folding sheet of cardboard, pasteboard or light-weight multilayer material, or metal, comprising a plurality of lateral walls and a front access aperture. This structure is stiffened on the one hand by bending the basic sheet material and on the other hand by means of posts disposed at the corners of the structure, a cross bar constituting a lintel disposed at the top of the front aperture, and possibly a desk-forming element, all these elements being obtained by folding a flexible sheet of the same basic material as the basic folding sheet constituting the frame structure.

Inventors

  • 👤 Luc Doublet

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 09:46
CPC Classifications
E; E04; E04H; E04H1/00; E04H1/12; E04H1/125; E04H1/1255

Claims Analysis

Total Claims: 23
Claim 1
Independent Claim 178 words
An isolation hut, to be used as a polling-booth during elections or other events, which is made from a sheet of basic folding material such as cardboard, pasteboard or light-weight multilayer material, said isolation hut comprising a plurality of lateral walls and a front access aperture, said lateral walls and said access aperture being adjacent to one another and forming between them a plurality of vertical corner edges, the isolation hut further comprising: a self-supporting frame structure obtained by folding said basic folding sheet material constituting said lateral walls and said front access aperture, and a plurality of frame posts for stiffening said self-supporting structure, said frame posts being disposed at the vertical edges formed by folding precut areas in said basic folding sheet material, wherein said self-supporting frame structure is reinforced by a desk-forming member extending between said lateral walls and comprising a bracing member between the adjacent and opposite lateral walls, said bracing member being supported in its horizontal position by the corner frame posts disposed between said first lateral wall and said other lateral wall.
Claim 2
Dependent Claim 178 words
An isolation hut, to be used as a polling-booth during elections or other events, which is made from a sheet of basic folding material such as cardboard, pasteboard or light-weight multilayer material, said isolation hut comprising a plurality of lateral walls and a front access aperture, said lateral walls and said access aperture being adjacent to one another and forming between them a plurality of vertical corner edges, the isolation hut further comprising: a self-supporting frame structure obtained by folding said basic folding sheet material constituting said lateral walls and said front access aperture, and a plurality of frame posts for stiffening said self-supporting structure, said frame posts being disposed at the vertical edges formed by folding precut areas in said basic folding sheet material, wherein said self-supporting frame structure is reinforced by a desk-forming member extending between said lateral walls and comprising a bracing member between the adjacent and opposite lateral walls, said bracing member being supported in its horizontal position by the corner frame posts disposed between said first lateral wall and said other lateral wall.
Claim 3
Dependent Claim 59 words
The isolation hut of claim 1, wherein said frame posts include front posts located at the vertical edges defined by said access aperture and intermediate posts located at the vertical edges defined by the adjacent lateral walls, said front frame posts are obtained by folding lateral precut portions of said basic folding sheet material constituting said self-supporting frame structure.
Claim 4
Dependent Claim 51 words
The isolation hut of claim 1, wherein said frame posts comprise front posts formed at the vertical edges defined by said access aperture and intermediate posts formed at the vertical edges defined by the adjacent lateral walls, said intermediate frame posts are obtained by folding precut portions of said lateral walls.
Claim 5
Dependent Claim 69 words
The isolation hut of claim 2, wherein the basic folding sheet material comprises a plurality of tongues formed therein adjacent said vertical front edges and a plurality of precut slots corresponding to said tongues which are formed in said lateral areas of each lateral walls adjacent said front access aperture, said tongues being adapted to engage said slots and contributing after the folding step in consolidating said front posts.
Claim 6
Dependent Claim 49 words
The isolation hut of claim 3, wherein the basic folding sheet of material comprises portions cuts therein in the lower portion of the lateral walls for constituting, after the folding step, the intermediate posts by coupling with the adjacent lateral walls provided for this purpose with corresponding precut slots.
Claim 7
Dependent Claim 20 words
The isolation hut of claim 1, wherein the framework posts have a tubular configuration and a substantially triangular cross section.
Claim 8
Dependent Claim 43 words
The isolation hut of claim 1, wherein said self-supporting frame structure is reinforced by a cross bar disposed at the top of the front access aperture, said cross bar acting as a bracing member between the two lateral walls adjacent said front aperture.
Claim 9
Dependent Claim 70 words
The isolation hut of claim 7, wherein said front aperture is partically closed by a curtain, and said cross bar is obtained by folding a second sheet of same material as said first sheet material, this folding step providing a gap in which said curtain is adapted to be pinched, said cross bar vfurther comprising end portions adapted to engage openings provided for this purpose in said frame structure posts.
Claim 10
Dependent Claim 56 words
The isolation hut of claim 1, wherein said desk is obtained by folding a third sheet of same material as said first sheet, so as to form a triangular-sectioned member, said desk being locked in position by inserting a tongue thereof through a pair of corresponding slots formed in said first lateral wall supporting said desk.
Claim 11
Dependent Claim 268 words
An isolation hut made from a single sheet of a light-weight and foldable material, comprising: (a) a self-supporting frame obtained by folding a sheet material along a plurality of folding lines disposed on said sheet material, said self-supporting frame comprising a plurality of lateral walls and a front access opening, said lateral walls and said front opening being adjacent to one another and forming therebetween a plurality of vertical corner edges, each of said lateral walls comprising a lateral portion along its edge adjacent to said front opening, each said lateral portion comprising a plurality of tongues disposed at spaced intervals at the outer boundary of each said lateral portion and a plurality of slots disposed at spaced intervals at the inner boundary of each said lateral portion to receive said tongues wherein one of said lateral walls comprises a rear wall, said rear wall being disposed opposite to said front opening; (b) a plurality of reinforcing posts integral with said self-supporting frame for imparting rigidity to said selfsupporting frame and disposed along said vertical corner edges, said vertical corner edges being formed by folding said sheet material along said folding lines, said reinforcing posts comprising a plurality of front posts located along a plurality of said vertical corner edges defined by said front opening and said lateral walls, and a plurality of intermediate posts located adjacent a plurality of said vertical corner edges defined by said lateral walls and said rear wall; and (c) a desk mounted at a portion of said self-supporting frame adapted to be used as a support for various articles of a user.
Claim 12
Dependent Claim 268 words
An isolation hut made from a single sheet of a light-weight and foldable material, comprising: (a) a self-supporting frame obtained by folding a sheet material along a plurality of folding lines disposed on said sheet material, said self-supporting frame comprising a plurality of lateral walls and a front access opening, said lateral walls and said front opening being adjacent to one another and forming therebetween a plurality of vertical corner edges, each of said lateral walls comprising a lateral portion along its edge adjacent to said front opening, each said lateral portion comprising a plurality of tongues disposed at spaced intervals at the outer boundary of each said lateral portion and a plurality of slots disposed at spaced intervals at the inner boundary of each said lateral portion to receive said tongues wherein one of said lateral walls comprises a rear wall, said rear wall being disposed opposite to said front opening; (b) a plurality of reinforcing posts integral with said self-supporting frame for imparting rigidity to said selfsupporting frame and disposed along said vertical corner edges, said vertical corner edges being formed by folding said sheet material along said folding lines, said reinforcing posts comprising a plurality of front posts located along a plurality of said vertical corner edges defined by said front opening and said lateral walls, and a plurality of intermediate posts located adjacent a plurality of said vertical corner edges defined by said lateral walls and said rear wall; and (c) a desk mounted at a portion of said self-supporting frame adapted to be used as a support for various articles of a user.
Claim 13
Dependent Claim 43 words
The isolation hut of claim 10, wherein said lateral portion further comprises a plurality of folding-lines, whereby when said lateral portion is folded along said folding lines, each of said tongues engages into a corresponding slot thereby forming one of said front posts.
Claim 14
Dependent Claim 273 words
An isolation hut made from a single sheet of a light-weight and foldable material, comprising: (a) a self-supporting frame obtained by folding a sheet material along a plurality of folding lines disposed on said sheet material, said self-supporting frame comprising a plurality of lateral walls and a front access opening, said lateral walls and said front opening being adjacent to one another and forming therebetween a plurality of vertical corner edges, each of said lateral walls comprising a substantially C-shaped pre-cut portion at its lower portion, wherein one of said lateral walls comprises a rear wall, said rear wall being disposed opposite to said front access opening; (b) a plurality of reinforcing posts integral with said self-supporting frame for imparting rigidity to said self-supporting frame and disposed along said plurality of vertical corner edges, said vertical corner edges being formed by folding said sheet material along said folding lines, said reinforcing posts comprising a plurality of front posts located along a plurality of said vertical corner edges defined by said front opening and said lateral walls, and a plurality of intermediate posts located adjacent a plurality of said vertical corner edges defined by said lateral walls and said rear wall; and (c) a desk mounted at a portion of said self-supporting frame adapted to be used as a support for various articles of a user; wherein said rear wall comprises a plurality of longitudinally extending slots at its lower portion such that when said C-shaped portion is folded rearwardly an end portion of said C-shaped portion is received in a plurality of said longitudinally extending slots thereby forming one of said intermediate posts.
Claim 15
Dependent Claim 273 words
An isolation hut made from a single sheet of a light-weight and foldable material, comprising: (a) a self-supporting frame obtained by folding a sheet material along a plurality of folding lines disposed on said sheet material, said self-supporting frame comprising a plurality of lateral walls and a front access opening, said lateral walls and said front opening being adjacent to one another and forming therebetween a plurality of vertical corner edges, each of said lateral walls comprising a substantially C-shaped pre-cut portion at its lower portion, wherein one of said lateral walls comprises a rear wall, said rear wall being disposed opposite to said front access opening; (b) a plurality of reinforcing posts integral with said self-supporting frame for imparting rigidity to said self-supporting frame and disposed along said plurality of vertical corner edges, said vertical corner edges being formed by folding said sheet material along said folding lines, said reinforcing posts comprising a plurality of front posts located along a plurality of said vertical corner edges defined by said front opening and said lateral walls, and a plurality of intermediate posts located adjacent a plurality of said vertical corner edges defined by said lateral walls and said rear wall; and (c) a desk mounted at a portion of said self-supporting frame adapted to be used as a support for various articles of a user; wherein said rear wall comprises a plurality of longitudinally extending slots at its lower portion such that when said C-shaped portion is folded rearwardly an end portion of said C-shaped portion is received in a plurality of said longitudinally extending slots thereby forming one of said intermediate posts.
Claim 16
Dependent Claim 17 words
The isolation hut of claim 12, wherein each of said reinforcing posts is substantially tubular in configuration.
Claim 17
Dependent Claim 17 words
The isolation hut of claim 12, wherein each of said reinforcing posts has a substantially triangular cross-section.
Claim 18
Dependent Claim 23 words
The isolation hut of claim 12, wherein each of said C-shaped portions comprises a notch at its upper section to receive said desk.
Claim 19
Dependent Claim 34 words
The isolation hut of claim 15, wherein said desk comprises a desk anchored on said rear wall and extending between said lateral walls, said desk being formed of a single sheet of foldable material.
Claim 20
Dependent Claim 38 words
The isolation hut of claim 16, wherein said desk forming sheet is substantially rectangular in configuration and comprises a plurality of folding-lines along the length thereof and a tab portion for anchoring said desk on said rear wall.
Claim 21
Dependent Claim 23 words
The isolation hut of claim 17, wherein said desk is substantially triangular in cross-section when it is folded along said plurality of folding-lines.
Claim 22
Dependent Claim 27 words
The isolation hut of claim 12, further comprising a cross-bar positioned at the top of said front opening for connecting said lateral walls adjacent said front opening.
Claim 23
Dependent Claim 22 words
The isolation hut of claim 12, wherein a corrugated curtain is hung from said cross-bar for closing and opening said front opening.

References Cited (Backward Citations)

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US1449780A Cited
US1514038A Cited
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US2837777A Cited
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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) 1991-03-29 1991-09-28 1992-03-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1995-03-29 1995-09-28 1996-03-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1999-03-29 1999-09-28 2000-03-29 $7700.00 Window Closed / Lapsed

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