US3130138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic cutting
Assignee: Battelle Development Corp
•
Filing: 1959-11-27
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Granted: 1964-04-21
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Expires: 1979-11-27
Abstract
No abstract record available.
Inventors
- 👤 Charles L Faust
- 👤 John E Clifford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:35
CPC Classifications
B; B23; B23H; B23H3/00; B23H3/08; B23H7/00; B23H7/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
147 words
A METHOD OF ELECTROLYTICALLY CUTTING INTO AN ELECTRICALLY CONDUCTIVE MASS, COMPRISING: CONNECTING SAID MASS TO THE POSITIVE SIDE OF A DIRECT CURRENT SUPPLY; CONNECTING TO THE NEGATIVE SIDE OF SAID DIRECT CURRENT SUPPLY AT LEAST ONE ELECTRICALLY CONDUCTIVE ROTATABLE DISK; LOCATING SAID MASS IN CLOSE PROXIMITY TO EACH SAID DISK AND MAINTAINING A GAP OF ABOUT 0.0005 TO 0.025 INCH BETWEEN THE PERIPHERY OF EACH SAID DISK AND THE ADJACENT PORTION OF SAID MASS; ROTATING EACH SAID DISK AT A PERIPHERAL SPEED OF AT LEAST ABOUT 3000 FEET PER MINUTE; AND SUPPLYING AN ELECTRICALLY CONDUCTIVE ELECTROLYTE THROUGHOUT EACH SAID GAP BY SUPPLYING SAID ELECTROLYTE TO AT LEAST ONE SIDE OF EACH SAID DISK AT A LOCATION SPACED FRO THE PERIPHERY THEREOF TO FORM ON SAID SIDE A FILM OF SUBSTANTIALLY UNIFORM THICKNESS OF SAID ELECTROLYTE THAT IS TRANSPORTED BY CENTRIFUGAL FORCE FROM SAID LOCATION TO SAID GAP.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-21 | 1967-10-21 | 1968-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-21 | 1971-10-21 | 1972-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-21 | 1975-10-21 | 1976-04-21 | $7700.00 | Window Closed / Lapsed |