US3387985A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing permanently lubricated bearings
Assignee: Landis and Gyr AG
•
Filing: 1963-09-10
•
Granted: 1968-06-11
•
Expires: 1983-09-10
Abstract
No abstract record available.
Inventors
- 👤 Huber August
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:24
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/30; F16C33/66; F16C33/6696; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49679; Y10T29/49694
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
THE METHOD OF PRODUCING PERMANENTLY LUBRICATED, OIL-FREE DOUBLE-JEWEL ELECTRIC METER THRUST BEARINGS COMPRISING THE STEPS OF ROLLING STAINLESS STEEL POLISHED BALLS IN A POLISHING DRUM WITH THE ADDITION OF A FINELY PULVERIZED LUBRICANT FOR A PERIOD OF TIME T UNTIL A FIRMLY ADHERING LAYER OF THE LUBRICANT IS DEVELOPED ON THEIR SURFACE, COMPACTING SAID LAYER BY LENGTHY ROLLING OF THE BALL IN ANOTHER POLISHING DRUM WITHOUT THE ADDITION OF LUBRICANT FOR A PERIOD OF TIME AT LEAST EQUAL TO 2T AND REMOVING STILL LOOSELY ADHERING PARTS OF THE LUBRICANT BY ULTRASONIC TREATMENT IN A SOLVENT.
Claim 2
Independent Claim
95 words
THE METHOD OF PRODUCING PERMANENTLY LUBRICATED, OIL-FREE DOUBLE-JEWEL ELECTRIC METER THRUST BEARINGS COMPRISING THE STEPS OF ROLLING STAINLESS STEEL POLISHED BALLS IN A POLISHING DRUM WITH THE ADDITION OF A FINELY PULVERIZED LUBRICANT FOR A PERIOD OF TIME T UNTIL A FIRMLY ADHERING LAYER OF THE LUBRICANT IS DEVELOPED ON THEIR SURFACE, COMPACTING SAID LAYER BY LENGTHY ROLLING OF THE BALL IN ANOTHER POLISHING DRUM WITHOUT THE ADDITION OF LUBRICANT FOR A PERIOD OF TIME AT LEAST EQUAL TO 2T AND REMOVING STILL LOOSELY ADHERING PARTS OF THE LUBRICANT BY ULTRASONIC TREATMENT IN A SOLVENT.
References Cited (Backward Citations)
US2048708A
Cited
US2423880A
Cited
GB555519A
Cited
US2378588A
Cited
US2387872A
Cited
US2554701A
Cited
US2616820A
Cited
US2731360A
Cited
US3023127A
Cited
US3075279A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-11 | 1971-12-11 | 1972-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-11 | 1975-12-11 | 1976-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-11 | 1979-12-11 | 1980-06-11 | $7700.00 | Window Closed / Lapsed |