Patent US3371022A successfully refreshed from Google Patents.
US3371022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low-electrolyte-pressure electro-chemical machining
Assignee: Individual
•
Filing: 1964-03-18
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Granted: 1968-02-27
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Expires: 1984-03-18
Abstract
No abstract record available.
Inventors
- 👤 Inoue Kiyoshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:11
CPC Classifications
B; B23; B23H; B23H3/00; B23H3/10; Y; Y10; Y10T; Y10T137/00; Y10T137/2931
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
AN APPARATUS FOR ELECTROCHEMICALL MACHINING A CONDUCTIVE WORKPIECE CONSTITUTING A FIRST ELECTRODE, SAID APPARATUS COMPRISING A SECOND ELECTRODE SPACEDCLY JUXTRPOSED WITH SAID FIRST ELECTRODE; A SOURCE OF SUBSTANTIALLY UNIDIRECTIONAL ELECTRIC CURRENT CONNECTABLE WITH SAID ELECTRODES TO RENDER SAID FIRST ELECTRODE POSITIVE RELATIVE TO SAID SECOND ELECTRODE; NOZZLE MEANS FOR PASSING A CONTINUOUS STREAM OF LIQUID ELECTROLYTE TANGENTIAL TO ONE OF SAID ELECTRODES AND THROUGH THE GAP BETWEEN SAID ELECTRODES; AND MEANS FOR INTRODUCING A SHEATH OF LIQUID DIELECTRIC MEDIUM SURROUNDING SAID STREAM AND IMPINGING ON SAID ELECTRODES AT AREAS SURROUNDING SAID GAP FOR LIMITING SIDE EROSION.
Claim 2
Independent Claim
96 words
AN APPARATUS FOR ELECTROCHEMICALL MACHINING A CONDUCTIVE WORKPIECE CONSTITUTING A FIRST ELECTRODE, SAID APPARATUS COMPRISING A SECOND ELECTRODE SPACEDCLY JUXTRPOSED WITH SAID FIRST ELECTRODE; A SOURCE OF SUBSTANTIALLY UNIDIRECTIONAL ELECTRIC CURRENT CONNECTABLE WITH SAID ELECTRODES TO RENDER SAID FIRST ELECTRODE POSITIVE RELATIVE TO SAID SECOND ELECTRODE; NOZZLE MEANS FOR PASSING A CONTINUOUS STREAM OF LIQUID ELECTROLYTE TANGENTIAL TO ONE OF SAID ELECTRODES AND THROUGH THE GAP BETWEEN SAID ELECTRODES; AND MEANS FOR INTRODUCING A SHEATH OF LIQUID DIELECTRIC MEDIUM SURROUNDING SAID STREAM AND IMPINGING ON SAID ELECTRODES AT AREAS SURROUNDING SAID GAP FOR LIMITING SIDE EROSION.
References Cited (Backward Citations)
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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) | 1971-02-26 | 1971-08-28 | 1972-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-26 | 1975-08-28 | 1976-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-26 | 1979-08-28 | 1980-02-27 | $7700.00 | Window Closed / Lapsed |