US4151025A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for waterproofing bridge decks and the like
Assignee: Triram Corp
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Filing: 1977-06-06
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Granted: 1979-04-24
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Expires: 1997-06-06
Abstract
Abstract Concrete bridge decks are waterproofed by first applying a primer over sound, dry and clean concrete which forms the bridge deck. A laminated membrane is then installed over the primed concrete surface, the membrane being comprised of reinforced cured and uncured elastomers. The membrane is then heated to the point where the uncured elastomer flows and rolled prior to cooling. A tack coat is then applied over the membrane and a wearing surface, such as asphalt, or the like, applied. The membrane employed is comprised of an upper stratum of a cured elastomer, a reinforcing fabric such as woven fiberglass in the center thereof and a lower stratum of a soft, uncured, form stable elastomer adapted to flow on the application of heat.
Inventors
- 👤 Melvin J. Jacobs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 02:56
CPC Classifications
B; B32; B32B; B32B25/00; B32B25/10; E; E01; E01D; E01D19/00; E01D19/08; E01D19/083; B32B25/16; B32B25/18; B32B2272/00; B32B2307/00; B32B2307/70; B32B2307/726; B32B2307/7265; B32B2419/00
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
88 words
The method of waterproofing concrete bridge decks and the like, comprising the steps of (a) applying a preformed heat softenable, waterproof, flexible sheet membrane over the upper surface of said deck, (b) applying sufficient heat to said membrane to cause at least that portion of said membrane against said deck to flow into binding adhesion with said deck, and (c) applying a wear stratum over said membrane, (d) said membrane being comprised of an upper ply of a cured elastomer and a lower ply of an uncured elastomer.
Claim 2
Independent Claim
88 words
The method of waterproofing concrete bridge decks and the like, comprising the steps of (a) applying a preformed heat softenable, waterproof, flexible sheet membrane over the upper surface of said deck, (b) applying sufficient heat to said membrane to cause at least that portion of said membrane against said deck to flow into binding adhesion with said deck, and (c) applying a wear stratum over said membrane, (d) said membrane being comprised of an upper ply of a cured elastomer and a lower ply of an uncured elastomer.
Claim 3
Dependent Claim
26 words
The method of claim 1, including the step of applying a solvent primer coat over the upper surface of said deck prior to applying said membrane.
Claim 4
Dependent Claim
29 words
The method of claim 2, including the step of moving a roller over said membrane after applying said membrane while said membrane is heated to remove trapped air therefrom.
Claim 5
Dependent Claim
26 words
The method of claim 3, including the step of adding a tack coat to the upper surface of said membrane prior to applying said wear stratum.
Claim 6
Dependent Claim
13 words
The method of claim 4 wherein said tack coat is an asphalt emulsion.
Claim 7
Dependent Claim
12 words
The method of claim 1 wherein said wear stratum is bituminous concrete.
Claim 8
Dependent Claim
17 words
The method of claim 1 wherein said upper ply is neoprene and said lower ply is butyl.
Claim 9
Dependent Claim
18 words
The method of claim 7 wherein said membrane includes a woven ply between said upper and lower plies.
Claim 10
Independent Claim
88 words
The method of waterproofing concrete brige decks, and the like, comprising the steps of (a) applying a heat-sensitive, waterproof, flexible membrane over the upper surface of said deck, (b) applying sufficient heat to said membrane to cause at least that portion of said membrane against said deck to flow into binding adhesion with said deck, and (c) applying a wear stratum over said membrane, (d) said membrane being comprised of an upper ply of cured elastomer, a center ply of fabric and a lower ply of uncured elastomer.
Claim 11
Independent Claim
88 words
The method of waterproofing concrete brige decks, and the like, comprising the steps of (a) applying a heat-sensitive, waterproof, flexible membrane over the upper surface of said deck, (b) applying sufficient heat to said membrane to cause at least that portion of said membrane against said deck to flow into binding adhesion with said deck, and (c) applying a wear stratum over said membrane, (d) said membrane being comprised of an upper ply of cured elastomer, a center ply of fabric and a lower ply of uncured elastomer.
Claim 12
Dependent Claim
22 words
The method of claim 9 wherein said upper ply is neoprene, said center ply is woven and said lower ply is butyl.
Claim 13
Dependent Claim
12 words
The method of claim 10 wherein said primer is a butyl solvent.
Claim 14
Dependent Claim
26 words
The method of claim 9 including the step of applying a solvent primer coat over the upper surface of said deck prior to applying said membrane.
Claim 15
Dependent Claim
32 words
The method of claim 12 including the step of moving a roller over said membrane after applying heat to said membrane while said membrane is still hot to remove trapped air therefrom.
Claim 16
Dependent Claim
12 words
The method of claim 12 wherein said primer is a butyl solvent.
Claim 17
Dependent Claim
26 words
The method of claim 13 including the step of adding a tack coat to the upper surface of said membrane prior to applying said wear stratum.
Claim 18
Dependent Claim
13 words
The method of claim 15 wherein said tack coat is an asphalt emulsion.
Claim 19
Dependent Claim
17 words
The method of claim 9 wherein said upper ply is woven and said lower ply is butyl.
Claim 20
Dependent Claim
13 words
The method of claim 9, wherein said wear stratum is a bitumous concrete.
Claim 21
Independent Claim
98 words
The method of waterproofing concrete bridge decks, and the like, comprising the steps of (a) applying a solvent primer coat over the upper surface of said deck, (b) applying a heat softenable waterproof, flexible, sheet membrane over the primer coated surface of said deck, (c) applying sufficient heat to said membrane to cause at least that portion of said membrane against said primer-coated deck to flow into binding adhesion with said deck, and (d) applying a wear stratum over said membrane, (e) said membrane being of a multi-strata construction with the lower stratum thereof being an uncured elastomer.
Claim 22
Independent Claim
98 words
The method of waterproofing concrete bridge decks, and the like, comprising the steps of (a) applying a solvent primer coat over the upper surface of said deck, (b) applying a heat softenable waterproof, flexible, sheet membrane over the primer coated surface of said deck, (c) applying sufficient heat to said membrane to cause at least that portion of said membrane against said primer-coated deck to flow into binding adhesion with said deck, and (d) applying a wear stratum over said membrane, (e) said membrane being of a multi-strata construction with the lower stratum thereof being an uncured elastomer.
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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) | 1982-04-23 | 1982-10-23 | 1983-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-23 | 1986-10-23 | 1987-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-23 | 1990-10-23 | 1991-04-24 | $7700.00 | Window Closed / Lapsed |