US3340478A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and arrangement for controlling the feed in connection with electroerosive machining
Assignee: Beteiligungs und Patentverwaltungs GmbH
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Filing: 1963-11-29
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Granted: 1967-09-05
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Expires: 1983-11-29
Abstract
No abstract record available.
Inventors
- 👤 Poerschke Karl Otto August
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:25
CPC Classifications
B; B23; B23H; B23H7/00; B23H7/14; B23H7/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
231 words
AN APPARATUS FOR CONTROLLING THE FEEDING OF A TOOL ELECTRODE IN CONNECTION WITH THE ELECTRO-EROSIVE MACHINING OF WORK PIECES BY FREQUENCY CONTROLLED IMPULSES, WHICH COMPRISES: A DISCHARGE IMPULSE EMITTER AND A CONTROL IMPULSE EMITTER, FIRST METER MEANS HAVING AN INPUT SIDE ADAPTED TO BE CONNECTED TO SAID DISCHARGE IMPULSE EMITTER AND ALSO HAVING AN OUTPUT SIDE, SECOND METER MEANS HAVING AN INPUT SIDE ADAPTED TO BE CONNECTED TO SAID CONTROL IMPULSE EMITTER AND ALSO HAVING AN OUTPUT SIDE, EXCESS METER MEANS HAVING AN INPUT SIDE CONNECTED TO THE OUTPUT SIDE OF SAID FIRST METER MEANS AND ADAPTED TO RECEIVE FROM SAID FIRST METER MEANS DISCHARGE IMPULSES RECEIVED BY THE LATTER WITHIN A CERTAIN TIME PERIOD IN EXCESS OF A CERTAIN NUMBER, A FIRST AND-GATE HAVING AN INPUT SIDE CONNECTED TO THE OUTPUT SIDE OF SAID SECOND METER MEANS AND TO THE OUTPUT SIDE OF SAID EXCESS METER MEANS, A SECOND AND-GATE HAVING AN INPUT SIDE CONNECTED TO THE OUTPUT SIDE OF SAID SECOND METER MEANS, A REVERSING STAGE HAVING AN INPUT SIDE CONNECTED TO THE OUTPUT SIDE OF SAID FIRST AND-GATE AND HAVING AN OUTPUT SIDE CONNECTED TO THE INPUT SIDE OF SAID SECOND AND-GATE, AND A BI-STABLE MULTIVIBRATOR HAVING AN INPUT SIDE CONNECTED TO THE OUTPUT SIDES OF SAID FIRST AND SECOND AND-GATES AND HAVING AN OUTPUT SIDE ADAPTED TO BE CONNECTED TO A FEED DRIVE FOR AN ELECTRODE TOOL.
Claim 2
Independent Claim
231 words
AN APPARATUS FOR CONTROLLING THE FEEDING OF A TOOL ELECTRODE IN CONNECTION WITH THE ELECTRO-EROSIVE MACHINING OF WORK PIECES BY FREQUENCY CONTROLLED IMPULSES, WHICH COMPRISES: A DISCHARGE IMPULSE EMITTER AND A CONTROL IMPULSE EMITTER, FIRST METER MEANS HAVING AN INPUT SIDE ADAPTED TO BE CONNECTED TO SAID DISCHARGE IMPULSE EMITTER AND ALSO HAVING AN OUTPUT SIDE, SECOND METER MEANS HAVING AN INPUT SIDE ADAPTED TO BE CONNECTED TO SAID CONTROL IMPULSE EMITTER AND ALSO HAVING AN OUTPUT SIDE, EXCESS METER MEANS HAVING AN INPUT SIDE CONNECTED TO THE OUTPUT SIDE OF SAID FIRST METER MEANS AND ADAPTED TO RECEIVE FROM SAID FIRST METER MEANS DISCHARGE IMPULSES RECEIVED BY THE LATTER WITHIN A CERTAIN TIME PERIOD IN EXCESS OF A CERTAIN NUMBER, A FIRST AND-GATE HAVING AN INPUT SIDE CONNECTED TO THE OUTPUT SIDE OF SAID SECOND METER MEANS AND TO THE OUTPUT SIDE OF SAID EXCESS METER MEANS, A SECOND AND-GATE HAVING AN INPUT SIDE CONNECTED TO THE OUTPUT SIDE OF SAID SECOND METER MEANS, A REVERSING STAGE HAVING AN INPUT SIDE CONNECTED TO THE OUTPUT SIDE OF SAID FIRST AND-GATE AND HAVING AN OUTPUT SIDE CONNECTED TO THE INPUT SIDE OF SAID SECOND AND-GATE, AND A BI-STABLE MULTIVIBRATOR HAVING AN INPUT SIDE CONNECTED TO THE OUTPUT SIDES OF SAID FIRST AND SECOND AND-GATES AND HAVING AN OUTPUT SIDE ADAPTED TO BE CONNECTED TO A FEED DRIVE FOR AN ELECTRODE TOOL.
References Cited (Backward Citations)
US2986699A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |