US3072444A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for lubricating bearing journal assemblies
Assignee: Pure Oil Co
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Filing: 1960-12-09
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Granted: 1963-01-08
•
Expires: 1980-12-09
Abstract
No abstract record available.
Inventors
- 👤 Donald L Klass
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:35
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/10; F16N; F16N29/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
IN THE LUBRICATION OF A BEARING-JOURNAL ASSEMBLY, THE IMPROVEMENT COMPRISING EMPLOYING AS A LUBRICANT THEREFOR AN ELECTRIC-FIELD-RESPONSIVE FLUID, APPLYING BETWEEN THE BEARING AND JOURNAL AN ELECTRIC POTENTIAL, AND VARYING SAID POTENTIAL IN PROPORTION TO THE LOAD TRANSMITTED THROUGH SAID BEARING AND JOURNAL.
Claim 2
Dependent Claim
42 words
IN THE LUBRICATION OF A BEARING-JOURNAL ASSEMBLY, THE IMPROVEMENT COMPRISING EMPLOYING AS A LUBRICANT THEREFOR AN ELECTRIC-FIELD-RESPONSIVE FLUID, APPLYING BETWEEN THE BEARING AND JOURNAL AN ELECTRIC POTENTIAL, AND VARYING SAID POTENTIAL IN PROPORTION TO THE LOAD TRANSMITTED THROUGH SAID BEARING AND JOURNAL.
References Cited (Backward Citations)
US2667237A
Cited
US2596654A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |