Patent US4251970A successfully refreshed from Google Patents.
US4251970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thin sheet having punched-out adhesion projections for use in compound structures, and compound structures constructed therewith
Assignee: Individual
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Filing: 1978-05-30
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Granted: 1981-02-24
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Expires: 1998-05-30
Abstract
Abstract Thin sheet suitable for use as a mold and as a reinforcement in a compound structure with a poured component such as concrete or plastic has a set of punched-out adhesion projections or tongues for providing improved adhesion between said thin sheet and said poured component. Said sheet can serve as mold for said poured component and as reinforcement for said compound structure. Compound structures comprising such thin sheet with projecting tongues are disclosed.
Inventors
- 👤 Matti P. Home
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:27
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/30; E04C2/32; E04C2/322; B; B21; B21C; B21C37/00; B21C37/06; B21C37/15; B21C37/156; B21C37/157; E04B; E04B5/00; E04B5/16; E04B5/32; E04B5/36; E04B5/38; E04B5/40; E04C2/02; E04C2/08
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
156 words
A thin sheet for serving as reinforcement and mold for a poured material, said sheet having a plurality of apertures and at least one tongue projecting from a portion of the margin of each said aperture, each said tongue being a punched-out portion of said sheet defining corresponding ones of said apertures, and having a root integral and continuous with said sheet, a first portion of said tongue projecting away from said sheet and a second portion of said tongue lying essentially parallel to said sheet, and wherein each of said tongues at least partially overlies the corresponding aperture and has a free tip, said tips pointing in substantially the same direction, and wherein each of said tongues has a length dimension defined between said root and tip which is greater than the corresponding dimension of the corresponding aperture, and wherein said root has side edges which expand in a curve as they join said sheet.
Claim 2
Dependent Claim
156 words
A thin sheet for serving as reinforcement and mold for a poured material, said sheet having a plurality of apertures and at least one tongue projecting from a portion of the margin of each said aperture, each said tongue being a punched-out portion of said sheet defining corresponding ones of said apertures, and having a root integral and continuous with said sheet, a first portion of said tongue projecting away from said sheet and a second portion of said tongue lying essentially parallel to said sheet, and wherein each of said tongues at least partially overlies the corresponding aperture and has a free tip, said tips pointing in substantially the same direction, and wherein each of said tongues has a length dimension defined between said root and tip which is greater than the corresponding dimension of the corresponding aperture, and wherein said root has side edges which expand in a curve as they join said sheet.
Claim 3
Dependent Claim
29 words
A thin sheet for serving as reinforcement and mold for a poured material as defined in claim 1, wherein said first and second portions are substantially equal in length.
Claim 4
Dependent Claim
37 words
A thin sheet for serving as reinforcement and mold for a poured material, as defined in claim 2, wherein the breadth of each of said tongues is substantially equal to the length of said first portion thereof.
Claim 5
Dependent Claim
38 words
A thin sheet for serving as reinforcement and mold for a poured material, as defined in claim 1 wherein said tongues are curved and wherein said first portion of tongue projects away from said sheet at an angle.
Claim 6
Dependent Claim
36 words
A thin sheet for serving as reinforcement and mold for a poured material, as defined in claim 4, wherein said first portion of said tongue projects away from said sheet at an angle less than 90°.
Claim 7
Dependent Claim
43 words
A thin sheet for serving as reinforcement and mold for a poured material, as defined in claim 4, wherein the tip of said tongue points toward said sheet so that said tongue forms an angle with a plane extending parallel to said sheet.
Claim 8
Dependent Claim
25 words
A thin sheet for serving as reinforcement and mold for a poured material, as defined in claim 6, wherein said angle is less than 45°.
Claim 9
Dependent Claim
24 words
A thin sheet for serving as reinforcement and mold for a poured material, as defined in claim 6, wherein said angle is about 30°.
Claim 10
Dependent Claim
31 words
A thin sheet for servng as reinforcement and mold for a poured material, as defined in claim 1, wherein said second portion is up to 50% shorter than said first portion.
Claim 11
Dependent Claim
27 words
A thin sheet for serving as reinforcement and mold for a poured material, as defined in claim 1, wherein said apertures and said tongues are essentially rectangular.
Claim 12
Dependent Claim
72 words
A thin sheet for serving as reinforcement and mold for a poured material, as defined in claim 1, wherein said sheet is from about 0.5 mm to 1.0 mm in thickness, the average breadth of said tongues is from about 2 mm to 7 mm, the length of said first portion is from about 5 mm to 10 mm and of said second portion is from about 2 mm to 8 mm.
Claim 13
Dependent Claim
35 words
A thin sheet for serving as reinforcement and mold for a poured material, as defined in claim 11, wherein a pair of tongues project from opposed portions of the margin of each of said apertures.
Claim 14
Dependent Claim
35 words
A thin sheet for serving as reinforcement and mold for a poured material, as defined in claim 1, wherein said thin sheet is of a material selected from the group consisting of steel and plastic.
Claim 15
Dependent Claim
39 words
A thin sheet for serving as reinforcement and mold for a poured material, as defined in claim 1, wherein said poured component is a material selected from the group consisting of concrete, plastic, light-weight concrete, foam-expanded plastic and plastic.
Claim 16
Dependent Claim
40 words
A thin sheet for serving as reinforcement and mold for a poured material, as defined in claim 1, wherein said thin sheet has tongues projecting from both faces thereof and a poured component making contact with each of said faces.
Claim 17
Dependent Claim
29 words
A thin sheet for serving as reinforcement and mold for a poured material, as defined in claim 1, wherein different poured components make contact with each of said faces.
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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) | 1984-02-24 | 1984-08-25 | 1985-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-24 | 1988-08-25 | 1989-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-24 | 1992-08-25 | 1993-02-24 | $7700.00 | Window Closed / Lapsed |