US3896969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water sealing construction
Assignee: Individual
•
Filing: 1973-05-02
•
Granted: 1975-07-29
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Expires: 1993-05-02
Abstract
Abstract A water barrier region is rendered self sealing against water leaks by disposing within or along the region, a water soluble envelope enclosed fluid sealant, which is released by leaking water dissolving the envelope and the released sealant lodges in the water leak passageways to seal the same. The sealant envelopes may be microcapsules or opposing films of polyvinyl alcohol and the sealant may be of a single component type, such as tar dissolved in a volatile solvent, a silicone sealant, or a water reacting powdered cement or a one part polysulfide, one part urethane or a two component type including a liquid curable resin and a curing or catalytic agent, separately enclosed.
Inventors
- 👤 Mario J Basile
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:28
CPC Classifications
E; E02; E02B; E02B3/00; E02B3/16; C; C08; C08J; C08J3/00; C08J3/24; C08J3/241; C09; C09K; C09K17/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
49 words
WATER BARRIER STRUCTURE COMPRISING SOLID MATRIX HAVING EMBEDDED THEREIN A FLUID SEALANT COMPOSITION ENCLOSED IN A WATER SOLUBLE ENVELOPE SAID SEALANT COMPOSITION COMPRISING A LIQUID RESIN CURABLE TO A SOLID STATE ENCLOSED IN WATER SOLUBLE MICROCAPSULES DEFINING SAID ENVELOPE AND A CURING AGENT ENCLOSED IN OTHER WATER SOLUBLE MICROCAPSUES.
Claim 2
Dependent Claim
49 words
WATER BARRIER STRUCTURE COMPRISING SOLID MATRIX HAVING EMBEDDED THEREIN A FLUID SEALANT COMPOSITION ENCLOSED IN A WATER SOLUBLE ENVELOPE SAID SEALANT COMPOSITION COMPRISING A LIQUID RESIN CURABLE TO A SOLID STATE ENCLOSED IN WATER SOLUBLE MICROCAPSULES DEFINING SAID ENVELOPE AND A CURING AGENT ENCLOSED IN OTHER WATER SOLUBLE MICROCAPSUES.
Claim 3
Dependent Claim
60 words
A water barrier structure comprising a pair of water soluble webs extending along a predetermined area, a fluid sealant composition enclosed in a water soluble envelope sandwiched between said webs, said sealant composition comprising a liquid resin curable to a solid state enclosed in water soluble microcapsules defining said envelope and a curing agent enclosed in other water soluble microcapsules.
Claim 4
Dependent Claim
60 words
A water barrier structure comprising a pair of water soluble webs extending along a predetermined area, a fluid sealant composition enclosed in a water soluble envelope sandwiched between said webs, said sealant composition comprising a liquid resin curable to a solid state enclosed in water soluble microcapsules defining said envelope and a curing agent enclosed in other water soluble microcapsules.
References Cited (Backward Citations)
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Cited
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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) | 1978-07-28 | 1979-01-27 | 1979-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-28 | 1983-01-27 | 1983-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-28 | 1987-01-27 | 1987-07-29 | $7700.00 | Window Closed / Lapsed |