US3716958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hidden sheet securing assembly
Assignee: Rio Tinto Aluminium Holdings Ltd
•
Filing: 1970-07-09
•
Granted: 1973-02-20
•
Expires: 1990-07-09
Abstract
Abstract The invention relates to an improved roofing or wall covering sheet having a rib formation which permits more effective connection to a roof or wall frame. The sheet is provided with one or more ribs, each of which has a groove on each of its sides, the mouth of the groove facing away from the roof or wall frame. The sheet is held in position by means of clips which have arms projecting towards the roof or wall frame and into the grooves. To facilitate installation the clips may be connected to a mounting plate which automatically locates them at the correct spacing.
Inventors
- 👤 I Scrivener
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:30
CPC Classifications
E; E04; E04D; E04D3/00; E04D3/36; E04D3/361; E04D3/363; E04D3/24; E04D3/3607
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
146 words
For use in securing roofing or wall covering sheets with formed ribs therein to a support, an elongated strip-like mounting plate positionable in underlying relation to said sheets transversely across the sheet ribs, a plurality of spaced clips attached to said mounting plate, each of said clips being generally in the shape of an inverted cup having at least one leg with the end thereof secured to said plate to mount the cup on the plate in overlying relation thereto, a pair of arms on the cup extending generally toward said mounting plate for engagement with grooves in a rib of said roofing or wall covering sheet, said arms terminating in downwardly directed free ends, and spring means on said mounting plate in generally underlying relation to said free ends and adapted to hold said sheets firmly in contact with the free ends of the arms.
Claim 2
Dependent Claim
146 words
For use in securing roofing or wall covering sheets with formed ribs therein to a support, an elongated strip-like mounting plate positionable in underlying relation to said sheets transversely across the sheet ribs, a plurality of spaced clips attached to said mounting plate, each of said clips being generally in the shape of an inverted cup having at least one leg with the end thereof secured to said plate to mount the cup on the plate in overlying relation thereto, a pair of arms on the cup extending generally toward said mounting plate for engagement with grooves in a rib of said roofing or wall covering sheet, said arms terminating in downwardly directed free ends, and spring means on said mounting plate in generally underlying relation to said free ends and adapted to hold said sheets firmly in contact with the free ends of the arms.
Claim 3
Dependent Claim
146 words
For use in securing roofing or wall covering sheets with formed ribs therein to a support, an elongated strip-like mounting plate positionable in underlying relation to said sheets transversely across the sheet ribs, a plurality of spaced clips attached to said mounting plate, each of said clips being generally in the shape of an inverted cup having at least one leg with the end thereof secured to said plate to mount the cup on the plate in overlying relation thereto, a pair of arms on the cup extending generally toward said mounting plate for engagement with grooves in a rib of said roofing or wall covering sheet, said arms terminating in downwardly directed free ends, and spring means on said mounting plate in generally underlying relation to said free ends and adapted to hold said sheets firmly in contact with the free ends of the arms.
Claim 4
Dependent Claim
146 words
For use in securing roofing or wall covering sheets with formed ribs therein to a support, an elongated strip-like mounting plate positionable in underlying relation to said sheets transversely across the sheet ribs, a plurality of spaced clips attached to said mounting plate, each of said clips being generally in the shape of an inverted cup having at least one leg with the end thereof secured to said plate to mount the cup on the plate in overlying relation thereto, a pair of arms on the cup extending generally toward said mounting plate for engagement with grooves in a rib of said roofing or wall covering sheet, said arms terminating in downwardly directed free ends, and spring means on said mounting plate in generally underlying relation to said free ends and adapted to hold said sheets firmly in contact with the free ends of the arms.
Claim 5
Dependent Claim
30 words
The structure as claimed in claim 1, in which said spring means consists of a section of said mounting plate displaced upwardly in the form of a cantilever leaf spring.
References Cited (Backward Citations)
GB910110A
Cited
US2103569A
Cited
US2201335A
Cited
US2311410A
Cited
US2492076A
Cited
GB659865A
Cited
US2765887A
Cited
FR1052517A
Cited
GB848358A
Cited
US3253375A
Cited
US3082665A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-20 | 1976-08-21 | 1977-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-20 | 1980-08-21 | 1981-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-20 | 1984-08-21 | 1985-02-20 | $7700.00 | Window Closed / Lapsed |