US3056690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stop leak composition and process
Assignee: Xzit Brickseal Co
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Filing: 1960-04-27
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Granted: 1962-10-02
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Expires: 1980-04-27
Abstract
No abstract record available.
Inventors
- 👤 Charles G Welch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:11
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A METHOD OF STOPPING LEAKS IN LIQUID SYSTEMS MADE UP OF METAL PARTS COMPRISING ISOLATING THE PORTION OF THE SYSTEM CONTAINING THE LEAK FROM THE REMAINING OF THE SYSTEM, CIRCULATING AN AQUEOUS EMULSION OF A MIXTURE OF 70-99% BY VOLUME COLOIDAL SILICA AND 1-30% BY VOLUME CASEIN THROUGH THE PORTION OF THE SYSTEM CONTAINING THE LEAK, SAID AQUEOUS EMULSION CONTAINING 50-95% BY VOLUME WATER AND 5-50% BY VOLUME OF SAID MIXTURE, AND APPLYING HEAT TO THE OUTSIDE SURFACE OF THE PORTION CONTAINING THE LEAK IN EXCESS OF APPROXIMATELY 750*F. AT LEAST UNTIL THE LEAK HAS COMPLETELY STOPPED.
Claim 2
Independent Claim
97 words
A METHOD OF STOPPING LEAKS IN LIQUID SYSTEMS MADE UP OF METAL PARTS COMPRISING ISOLATING THE PORTION OF THE SYSTEM CONTAINING THE LEAK FROM THE REMAINING OF THE SYSTEM, CIRCULATING AN AQUEOUS EMULSION OF A MIXTURE OF 70-99% BY VOLUME COLOIDAL SILICA AND 1-30% BY VOLUME CASEIN THROUGH THE PORTION OF THE SYSTEM CONTAINING THE LEAK, SAID AQUEOUS EMULSION CONTAINING 50-95% BY VOLUME WATER AND 5-50% BY VOLUME OF SAID MIXTURE, AND APPLYING HEAT TO THE OUTSIDE SURFACE OF THE PORTION CONTAINING THE LEAK IN EXCESS OF APPROXIMATELY 750*F. AT LEAST UNTIL THE LEAK HAS COMPLETELY STOPPED.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-01 | 1966-04-02 | 1966-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-01 | 1970-04-02 | 1970-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-01 | 1974-04-02 | 1974-10-02 | $7700.00 | Window Closed / Lapsed |