US4470237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Strip shingles with foamed asphalt as the tab seal adhesive and method of manufacture
Assignee: Owens Corning
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Filing: 1982-07-15
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Granted: 1984-09-11
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Expires: 2002-07-15
Abstract
Abstract Tab sealant asphalt adhesive is foamed and then dispensed through a nozzle on asphalt shingle material.
Inventors
- 👤 William W. Lincoln
- 👤 Glenn D. Lamb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:45
CPC Classifications
E; E04; E04D; E04D1/00; E04D1/26; E04D1/29; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24843; Y10T428/31504; Y10T428/31815
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
52 words
In an asphalt shingle having a strip of tab sealing adhesive on a normally covered headlap portion thereof for holding down normally exposed overlying tab portions of a shingle in a next upper row when the shingles are installed on a roof, the improvement wherein the tab sealing adhesive is foamed asphalt.
Claim 2
Dependent Claim
52 words
In an asphalt shingle having a strip of tab sealing adhesive on a normally covered headlap portion thereof for holding down normally exposed overlying tab portions of a shingle in a next upper row when the shingles are installed on a roof, the improvement wherein the tab sealing adhesive is foamed asphalt.
Claim 3
Dependent Claim
75 words
In an asphalt shingle manufacturing process including applying a strip of tab sealing asphalt adhesive as a hot liquid on a normally covered headlap portion of a shingle for holding down normally exposed overlying tab portions of a shingle in a next upper row when the shingles are installed on a roof, the improvement comprising foaming the hot liquid asphalt adhesive and dispensing it on the headlap portion of the shingle through a dispensing nozzle.
Claim 4
Dependent Claim
75 words
In an asphalt shingle manufacturing process including applying a strip of tab sealing asphalt adhesive as a hot liquid on a normally covered headlap portion of a shingle for holding down normally exposed overlying tab portions of a shingle in a next upper row when the shingles are installed on a roof, the improvement comprising foaming the hot liquid asphalt adhesive and dispensing it on the headlap portion of the shingle through a dispensing nozzle.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-09-11 | 1988-03-12 | 1988-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-11 | 1992-03-12 | 1992-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-11 | 1996-03-12 | 1996-09-11 | $7700.00 | Window Closed / Lapsed |