Patent US3227002A successfully refreshed from Google Patents.
US3227002A
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Forced feed bearing lubricating system
Assignee: Paul Revere Corp
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Filing: 1963-10-07
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Granted: 1966-01-04
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Expires: 1983-10-07
Abstract
No abstract record available.
Inventors
- 👤 Cary D Gholson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:49
CPC Classifications
A; A01; A01F; A01F15/00; A01F15/04; A01F15/042; F; F16; F16N; F16N13/00; F16N13/02; F16N13/06; F16N13/18; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/2093; Y10T74/21; Y10T74/2142; Y10T74/2152; Y10T74/2162
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
94 words
A FORCED-FEED LUBRICATION SYSTEM, COMPRISING: A PITMAN FOR A PISTON, A CAVITY IN SAID PITMAN FOR STORING A SUPPLY OF LUBRICANT, A FREE-SLIDING, DOUBLE-ACTING PISTON MOVABLE IN SAID CAVITY BETWEEN TWO SEPARATED POINTS, MEANS IN SAID CAVITY FOR ARRESTING SAID DOUBLE-ACTING PISTON AT EACH OF SAID SEPARATED POINTS WHEN SAID LUBRICANT SUPPLY IS DEPLETED, SAID ARRESTING ACTIONS OF SAID DOUBLEACTING PISTON BY SAID ARRESTING MEANS PRODUCING AN AUDIBLE SOUND, A SEPARATE LUBRICANT DISCHARGE PASSAGE LEADING FROM SAID CAVITY FOR EACH ACTION OF SAID DOUBLE-ACTING PISTON, AND A LUBRICANT SUPPLY INLET LEADING INTO SAID CAVITY.
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) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |