US3444070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic shaping apparatus
Assignee: Anocut Engineering Co
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Filing: 1966-07-25
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Granted: 1969-05-13
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Expires: 1986-07-25
Abstract
No abstract record available.
Inventors
- 👤 Lynn A Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:33
CPC Classifications
B; B23; B23H; B23H7/00; B23H7/26; B23H7/32; B23H7/30; C; C25; C25F; C25F3/00; C25F3/16; C25F7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
IN AN ELECROLYTIC APPARATUS FOR REMOVING MATERIAL FROM AN ELECTRICALLY CONDUCTIVE AND ELECTROCHEMICALLY ERODIBLE WORKPIECE BY MEANS OF AN ELECTRODE HAVING ONE OR MORE ELECTOLYTE PASSAGES THERETHROUGH AND A CONDUCTIVE WORKING FACE, THE WORKPIECE AND SAID ELECTRODE BEING RELATIVELY MOVABLE TOWARD EACH OTHER TO DEFINE A WORK GAP BETWEEN THE WORKPIECE AND SAID ELECTRODE WORKING FACE, MEANS CONNECTED TO SAID ELECTRODE FOR PUMPING ELECTROLYTE THROUGH SAID ELECTRODE AND TO AND THROUGH THE WORK GAP AT THE SUPERATMOSHPERIC PRESSURE SO THAT THE WORKPIECE APART WITH A VARIABLE HYDRAULIC FORCE WHICH INCREASES AS THE ELECTRODE-TO-WORKPIECE SPACING DECREASES, MEANS FOR APPLYING A SUBSTANTIALLY CONSTANT FORCE BE-
Claim 2
Dependent Claim
103 words
IN AN ELECROLYTIC APPARATUS FOR REMOVING MATERIAL FROM AN ELECTRICALLY CONDUCTIVE AND ELECTROCHEMICALLY ERODIBLE WORKPIECE BY MEANS OF AN ELECTRODE HAVING ONE OR MORE ELECTOLYTE PASSAGES THERETHROUGH AND A CONDUCTIVE WORKING FACE, THE WORKPIECE AND SAID ELECTRODE BEING RELATIVELY MOVABLE TOWARD EACH OTHER TO DEFINE A WORK GAP BETWEEN THE WORKPIECE AND SAID ELECTRODE WORKING FACE, MEANS CONNECTED TO SAID ELECTRODE FOR PUMPING ELECTROLYTE THROUGH SAID ELECTRODE AND TO AND THROUGH THE WORK GAP AT THE SUPERATMOSHPERIC PRESSURE SO THAT THE WORKPIECE APART WITH A VARIABLE HYDRAULIC FORCE WHICH INCREASES AS THE ELECTRODE-TO-WORKPIECE SPACING DECREASES, MEANS FOR APPLYING A SUBSTANTIALLY CONSTANT FORCE BE-
References Cited (Backward Citations)
US2798846A
Cited
US3060114A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-12 | 1972-11-11 | 1973-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-12 | 1976-11-11 | 1977-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-12 | 1980-11-11 | 1981-05-13 | $7700.00 | Window Closed / Lapsed |