CA1176815A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Structural element for building purposes and a method of making said element
Assignee: REDECON Oy
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Filing: 1982-04-19
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Granted: 1984-10-30
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Expires: 2002-04-19
Abstract
Abstract Abstract of the Disclosure A supporting floor or roof element of sandwich construction comprising two spaced-apart parallel surface plates (1, 2) and a plurality of web plates (3) positioned between said surface plates and a core of a foamed plastics material (4) filling the spaces between said plates. Between the longitudinal edge of each web plate and the inner surface of each surface plate is formed a slit (5) into which the foamed plastics material filling said spaces has penetrated and, upon hardening , formed a continuous adhesive layer filling said slit, said adhesive layer fastening said web plate to the corresponding surface plate. The longitudinal edges (3a) of the web plates and/or the inner surfaces of the surface plates are provided with projections (7) or grooves for supporting the web plates in place with respect to the surface plates. (Fig. 1)
Inventors
- 👤 Teuvo Koivu
- 👤 Ilpo Halva
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-11-08 00:41
CPC Classifications
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Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
133 words
A box beam element of sandwich construction, especially a supporting floor or roof element, comprising two spaced-apart parallel surface plates, a plurality of longitudinal web plates located between the surface plates and connected to the surface plates at the longitudinal edges of said web plates, and a core of a foam plastics material filling the spaces between the surface and web plates, the longitudinal edges of the web plates forming a slit with the corresponding surface plate, said slit being filled with a hardened adhesive layer of the foamed plastics material filling said spaces of the box beam, characterized in that the longitudinal edges of the web plates and/or the inner surfaces of the surface plates are provided with means for supporting the web plates in place with respect to the surface plates.
Claim 2
Dependent Claim
133 words
A box beam element of sandwich construction, especially a supporting floor or roof element, comprising two spaced-apart parallel surface plates, a plurality of longitudinal web plates located between the surface plates and connected to the surface plates at the longitudinal edges of said web plates, and a core of a foam plastics material filling the spaces between the surface and web plates, the longitudinal edges of the web plates forming a slit with the corresponding surface plate, said slit being filled with a hardened adhesive layer of the foamed plastics material filling said spaces of the box beam, characterized in that the longitudinal edges of the web plates and/or the inner surfaces of the surface plates are provided with means for supporting the web plates in place with respect to the surface plates.
Claim 3
Dependent Claim
63 words
A box beam element according to claim 1, characterized in that the inner surface of the surface plate is planar at the location of the web plate, and in that the longitudinal edge of the web plate is at least partially in the longitudinal direction of the web plate provided with projections by means of which the web plate contacts the surface plate.
Claim 4
Dependent Claim
69 words
A box beam according to claim 1 characterized in that the longitudinal edge of the web plate is planar and the inner surface of the surface plate is provided with a groove at the location of the web plate, the bottom of said groove being at least partially in the longitudinal direction of said groove provided with projections by means of which the surface plate contacts the web plate.
Claim 5
Independent Claim
131 words
A method of manufacturing a box beam element of sandwich construction, especially a floor or roof element, by connecting two spaced-apart parallel surface plates to each other by means of longitudinal spaced-apart web plates arranged between said surface plates, forming between the longitudinal edges of the web plates and the surface plates narrow slits, filling the spaces between the web plates by foaming a foamable plastics material, whereby the web plates are fastened to the surface plates by means of said foamed plastics material penetrating into said slits and, upon hardening, forming an adhesive layer filling said slit, characterized by supporting the web plates during foaming by means of continuous or discontinuous protuberances formed on the longitudinal edges of the web plates and/or in the inner surfaces of the surface plates.
Claim 6
Independent Claim
131 words
A method of manufacturing a box beam element of sandwich construction, especially a floor or roof element, by connecting two spaced-apart parallel surface plates to each other by means of longitudinal spaced-apart web plates arranged between said surface plates, forming between the longitudinal edges of the web plates and the surface plates narrow slits, filling the spaces between the web plates by foaming a foamable plastics material, whereby the web plates are fastened to the surface plates by means of said foamed plastics material penetrating into said slits and, upon hardening, forming an adhesive layer filling said slit, characterized by supporting the web plates during foaming by means of continuous or discontinuous protuberances formed on the longitudinal edges of the web plates and/or in the inner surfaces of the surface plates.
Claim 7
Dependent Claim
23 words
A method according to claim 4, characterized by supporting the web plates during foaming by means of grooves formed in the surface plates.
References Cited (Backward Citations)
No citation records indexed.
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