Patent US3194342A successfully refreshed from Google Patents.
US3194342A
Expired / Lapsed
US
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Method for lubricating mechanical seal
Assignee: Ingersoll Rand Co
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Filing: 1964-07-22
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Granted: 1965-07-13
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Expires: 1984-07-22
Abstract
No abstract record available.
Inventors
- 👤 George H Heim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:45
CPC Classifications
F; F16; F16N; F16N39/00; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/3404
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
50 words
A METHOD FOR LUBRICATING THE SEAL FACES OF A MECHANICAL SEAL COMPRISING THE STEPS OF: (A) SUPPLYING LUBRICATING FLUID TO SAID SEAL FACES, (B) COOLING SAID LUBRICATING FLUID, (C) ADDING A FILMING AGENT TO SAID LUBRICATING FLUID, AND (D) CONTROLLING THE PERCENTAGE OF SAID FILMING AGENT IN SAID LUBRICATING FLUID.
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) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |