US3678640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Partition-walls formed of prefabricated elements
Assignee: TRAMEX
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Filing: 1970-09-23
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Granted: 1972-07-25
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Expires: 1990-09-23
Abstract
Abstract A prefabricated partition-wall element constituted by a parallelepiped-shaped plate of relatively great length as compared to its width, and comprising a rigid and resistant core covered with apparent facings of smooth coatings whose dimensions are equal to the largest dimensions of the element, said core being provided on its narrow faces and all along its periphery with sunk and raised portions provided in the material of the core and intended to ensure the binding with the adjacent elements subsequent to interposition of a binder.
Inventors
- 👤 Jean-Claude Tillie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:56
CPC Classifications
B; B32; B32B; B32B13/00; B32B13/04; B28; B28B; B28B5/00; B28B5/02; B28B11/00; B28B11/04; B32B13/02; B32B3/00; B32B3/02; B32B3/06; E; E04; E04B; E04B1/00; E04B1/38; E04B1/541; E04B2/00; E04B2/72; E04B2/74; E04B2/82; E04B2/821; E04B2/822; E04C; E04C2/00; E04C2/02; E04C2/04; E04C2/043; E04C2/26; E04C2/284; E04C2/288; B32B2607/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
194 words
A building structure comprIsing at least two prefabricated partition-wall elements each comprising a parallele piped-shaped core member made of a rigid and resistant material, said core member having two rectangular main faces parallel to each other and peripheral narrow faces and at least one rectangular coating member covering one at least of said rectangular main faces and forming an apparent smooth facing for the same, said peripheral narrow faces being provided with grooves and cavities, said partition-wall elements being accurately juxtaposed along their respective narrow faces so that grooves and cavities on the narrow face of one element registers with grooves and cavities on the narrow face of the other element and being bound with one another, at the level of said core members, by a binder injected under pressure between said juxtaposed narrow faces so as to fill the said grooves and cavities, said elements bearing upon the floor, the ceiling and any other backing structure through the medium of resilient key means, a plastic material being cast on the side of said building structure where the said key means are located the said key means remaining in place in said building structure.
Claim 2
Dependent Claim
194 words
A building structure comprIsing at least two prefabricated partition-wall elements each comprising a parallele piped-shaped core member made of a rigid and resistant material, said core member having two rectangular main faces parallel to each other and peripheral narrow faces and at least one rectangular coating member covering one at least of said rectangular main faces and forming an apparent smooth facing for the same, said peripheral narrow faces being provided with grooves and cavities, said partition-wall elements being accurately juxtaposed along their respective narrow faces so that grooves and cavities on the narrow face of one element registers with grooves and cavities on the narrow face of the other element and being bound with one another, at the level of said core members, by a binder injected under pressure between said juxtaposed narrow faces so as to fill the said grooves and cavities, said elements bearing upon the floor, the ceiling and any other backing structure through the medium of resilient key means, a plastic material being cast on the side of said building structure where the said key means are located the said key means remaining in place in said building structure.
Claim 3
Dependent Claim
27 words
A building structure according to claim 1, wherein said core member is made of plaster reinforced with straw, whereas said coating member is made of polished plaster.
Claim 4
Dependent Claim
18 words
A building structure according to claim 1, wherein said core member is made of expanded and reinforced polystyrene.
Claim 5
Dependent Claim
19 words
A building structure according to claim 1, wherein said grooves provided in said narrow faces have a semi-circular cross-section.
Claim 6
Dependent Claim
18 words
A building structure according to claim 1, wherein said grooves provided in narrow faces have a triangular cross-section.
Claim 7
Dependent Claim
22 words
A building structure according to claim 1, wherein a portion at least of said partition-wall elements is water-proofed by way of steeping.
Claim 8
Dependent Claim
54 words
A building structure according to claim 1, adapted to provide a vertical partition-wall, wherein the height of the said elements is less than that of the said vertical partition-wall the aforesaid key means being inserted between said elements and said floor so as to apply said elements on said ceiling and being subsequently concealed.
Claim 9
Dependent Claim
18 words
A building structure according to claim 1, wherein said key means have the shape of an open lyre.
Claim 10
Dependent Claim
20 words
A building structure according to claim 1, wherein said cavities are inclined obliquely with respect to said peripheral narrow faces.
Claim 11
Dependent Claim
20 words
A building structure according to claim 9, wherein said cavities are inclined obliquely, alternatively in one direction and the other.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-25 | 1976-01-24 | 1976-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-25 | 1980-01-24 | 1980-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-25 | 1984-01-24 | 1984-07-25 | $7700.00 | Window Closed / Lapsed |