US3874141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Building panels
Assignee: INTERNATIONAL CANADOME Ltd
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Filing: 1973-06-08
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Granted: 1975-04-01
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Expires: 1993-06-08
Abstract
Abstract A symmetrical quadrilateral plate, generally diamond shaped, folded along two lines symmetrically spaced on each side of its major axis to form a flat central valley and two similar triangular portions. Extensions portions are provided at the ends of the major axis and define extensions of the valley, the end portions being bent upwardly or downwardly from the plane of the valley.
Inventors
- 👤 Mervyn D Olson
- 👤 Roy F Hooley
- 👤 John Bell Mcrai
- 👤 Norman Murray Stephens
- 👤 William R Scotton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:16
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/32; E04C; E04C2/00; E04C2/30; E04C2/32; E04B2001/327; E04B2001/3288
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
148 words
A building panel comprising symmetrical quadrilateral modular plate for cooperative use with similar plates in building construction, said plate being folded along two lines symmetrically spaced one on each side of a diagonal line of symmetry to form a central valley between said lines and two similar at least substantially triangular portions lying in intersecting planes disposed at equal angles to a plane of symmetry of the plate, and said plate having extension portions at the ends of said diagonal of symmetry, and extension portions being generally planar and including therein a continuous extension of said two lines, thus defining extensions of said central valley and the plane of each said generally planar extension portion being bent to define an acute angle with the diagOnal line of symmetry, whereby said extension portions are shaped to lap with an extension portion of an adjoining plate on the building construction.
Claim 2
Dependent Claim
148 words
A building panel comprising symmetrical quadrilateral modular plate for cooperative use with similar plates in building construction, said plate being folded along two lines symmetrically spaced one on each side of a diagonal line of symmetry to form a central valley between said lines and two similar at least substantially triangular portions lying in intersecting planes disposed at equal angles to a plane of symmetry of the plate, and said plate having extension portions at the ends of said diagonal of symmetry, and extension portions being generally planar and including therein a continuous extension of said two lines, thus defining extensions of said central valley and the plane of each said generally planar extension portion being bent to define an acute angle with the diagOnal line of symmetry, whereby said extension portions are shaped to lap with an extension portion of an adjoining plate on the building construction.
Claim 3
Dependent Claim
36 words
A building panel as claimed in claim 1, wherein said central valley is transversely curved so as to be convex in the direction in which said triangular portions are bent, and said extensions being similarly curved.
Claim 4
Dependent Claim
27 words
A building panel as claimed in claim 1, wherein said extension portions are bent so as to define the same acute angle with said diagonal of symmetry.
Claim 5
Dependent Claim
27 words
A building panel as claimed in claim 1, wherein said extension portions are bent from said diagonal of symmetry in the same direction as said triangular portions.
Claim 6
Dependent Claim
27 words
A building panel as claimed in claim 1, wherein said extension portions are bent from said diagonal of symmetry in the opposite direction to said triangular portions.
Claim 7
Dependent Claim
33 words
A building panel as claimed in claim 1, wherein the sides of said triangular portions defining the sides of said plate are each folded adjacent the edges thereof to form a peripheral flange.
Claim 8
Dependent Claim
29 words
A building panel as claimed in claim 6, wherein each side of said plate is folded adjacent the edge thereof along two parallel lines to define a ridge plane.
Claim 9
Dependent Claim
46 words
A building panel as claimed in claim 7, wherein said extension portions are folded along two parallel lines on each side of said diagonal of symmetry to form extension ridge planes convergent with said main ridge planes at the same angle to the diagonal of symmetry.
Claim 10
Dependent Claim
147 words
A building panel comprising symmetrical quadrilateral modular plate for cooperative use with similar plates in building construction, said plate being folded along two lines symmetrically spaced one on each side of a diagonal line of symmetry to form a central valley between said lines and two similar at least substantially triangular portions lying in intersecting planes disposed at equal angles to a plane of symmetry of the plate, said plate having extension portions at the ends of said diagonal of symmetry, said portions defining extensions of said central valley and being bent to define acute angles relative to the diagonal line of symmetry and being shaped to lap with an extension portion of an adjoining plate on the building construction, said central valley being transversely curved so as to be convex in the direction in which the triangular portions are bent, and said extensions being similarly curved.
Claim 11
Dependent Claim
147 words
A building panel comprising symmetrical quadrilateral modular plate for cooperative use with similar plates in building construction, said plate being folded along two lines symmetrically spaced one on each side of a diagonal line of symmetry to form a central valley between said lines and two similar at least substantially triangular portions lying in intersecting planes disposed at equal angles to a plane of symmetry of the plate, said plate having extension portions at the ends of said diagonal of symmetry, said portions defining extensions of said central valley and being bent to define acute angles relative to the diagonal line of symmetry and being shaped to lap with an extension portion of an adjoining plate on the building construction, said central valley being transversely curved so as to be convex in the direction in which the triangular portions are bent, and said extensions being similarly curved.
Claim 12
Dependent Claim
167 words
A building panel comprising symmetrical quadrilateral modular plate for cooperative use with similar plates in building construction, said plate being folded along two lines symmetrically spaced one on each side of a diagonal line of symmetry to form a central valley between said lines and two similar at least substantially triangular portions lying in intersecting planes disposed at equal angles to a plane of symmetry of the plate, said plate having extension portions at the ends of said diagonal line of symmetry, said extension portions defining extensions of said central valley and being bent to define acute angles relative to the diagonal line of symmetry and being shaped to lap with an extension portion of an adjoining plate on the building construction, the sides of said triangular portions defining the sides of said plate being folded along two parallel lines to define a ridge plane and including a peripheral flange adjacent each said ridge plane on the exterior thereof to define the outer edge of said plate.
Claim 13
Dependent Claim
167 words
A building panel comprising symmetrical quadrilateral modular plate for cooperative use with similar plates in building construction, said plate being folded along two lines symmetrically spaced one on each side of a diagonal line of symmetry to form a central valley between said lines and two similar at least substantially triangular portions lying in intersecting planes disposed at equal angles to a plane of symmetry of the plate, said plate having extension portions at the ends of said diagonal line of symmetry, said extension portions defining extensions of said central valley and being bent to define acute angles relative to the diagonal line of symmetry and being shaped to lap with an extension portion of an adjoining plate on the building construction, the sides of said triangular portions defining the sides of said plate being folded along two parallel lines to define a ridge plane and including a peripheral flange adjacent each said ridge plane on the exterior thereof to define the outer edge of said plate.
Claim 14
Dependent Claim
47 words
A building panel as claimed in claim 10, wherein said extension portions are folded along two parallel lines on each side of said diagonal of symmetry to form extension ridge planes convergent with said main ridge planes at the same angle to the diagonal line of symmetry.
References Cited (Backward Citations)
US1681819A
Cited
US3203144A
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US3144103A
Cited
US3111788A
Cited
US3439459A
Cited
US3557501A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-31 | 1978-09-30 | 1979-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-31 | 1982-09-30 | 1983-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-31 | 1986-09-30 | 1987-04-01 | $7700.00 | Window Closed / Lapsed |