US3348633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for lubricating friction draft gear
Assignee: W H MINER Inc
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Filing: 1964-06-22
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Granted: 1967-10-24
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Expires: 1984-06-22
Abstract
No abstract record available.
Inventors
- 👤 William H Allan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:44
CPC Classifications
B; B61; B61G; B61G9/00; B61G9/04; B61G9/10; B61G9/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A METHOD OF LUBRICATING A NON-PLANAR FRICTION SURFACE OF AN INWARDLY CONVERGING FRICTION CLUTCH BORE OF A FRICTION DRAFT GEAR OF THE TYPE HAVING A SERIES OF FRICTION CLUTCH MEMBERS SLIDABLE IN THE FRICTION BORE, WHICH METHOD COMPRISES THE STEPS OF POSITIONING RELATIVELY THIN PREFORMED INSERT MEANS OF METALLIC LUBRICANT WHICH ARE GENERALLY COMPLEMENTARY IN CONFIGURATION TO THE NONPLANAR FRICTION SURFACE OF SAID FRICTION BORE IN SAID FRICTION BORE FLUSH AGAINST SAID FRICTION SURFACE, AND THEN ASSEMBLING THE REST OF THE DRAFT GEAR INCLUDING SAID SLIDABLE FRICTION MEMBERS AND ACTUATING SAID FRICTION CLUTCH A NUMBER OF TIMES WITH SAID SLIDABLE FRICTION MEMBERS BEING WEDGED INWARDLY AND RADIALLY OUTWARDLY OF SAID FRICTION BORE WHEREBY SAID METALLIC LUBRICANT OF SAID INSERT MEANS IS SPREAD UNIFORMLY OVER SAID FRICTION SURFACE TO LUBRICATE SAME.
Claim 2
Independent Claim
130 words
A METHOD OF LUBRICATING A NON-PLANAR FRICTION SURFACE OF AN INWARDLY CONVERGING FRICTION CLUTCH BORE OF A FRICTION DRAFT GEAR OF THE TYPE HAVING A SERIES OF FRICTION CLUTCH MEMBERS SLIDABLE IN THE FRICTION BORE, WHICH METHOD COMPRISES THE STEPS OF POSITIONING RELATIVELY THIN PREFORMED INSERT MEANS OF METALLIC LUBRICANT WHICH ARE GENERALLY COMPLEMENTARY IN CONFIGURATION TO THE NONPLANAR FRICTION SURFACE OF SAID FRICTION BORE IN SAID FRICTION BORE FLUSH AGAINST SAID FRICTION SURFACE, AND THEN ASSEMBLING THE REST OF THE DRAFT GEAR INCLUDING SAID SLIDABLE FRICTION MEMBERS AND ACTUATING SAID FRICTION CLUTCH A NUMBER OF TIMES WITH SAID SLIDABLE FRICTION MEMBERS BEING WEDGED INWARDLY AND RADIALLY OUTWARDLY OF SAID FRICTION BORE WHEREBY SAID METALLIC LUBRICANT OF SAID INSERT MEANS IS SPREAD UNIFORMLY OVER SAID FRICTION SURFACE TO LUBRICATE SAME.
References Cited (Backward Citations)
US514621A
Cited
US1396896A
Cited
US1426022A
Cited
US2141680A
Cited
US2558117A
Cited
US2852097A
Cited
US3133477A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-23 | 1971-04-24 | 1971-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-23 | 1975-04-24 | 1975-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-23 | 1979-04-24 | 1979-10-24 | $7700.00 | Window Closed / Lapsed |