Patent US3288693A successfully refreshed from Google Patents.
US3288693A
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Method for automatically controlling electrode device feeding in electric erosion machines and an arrangement to carry out this method
Assignee: EXNII METALLOREZHUSHTCHIKH STA
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Filing: 1963-07-30
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Granted: 1966-11-29
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Expires: 1983-07-30
Abstract
No abstract record available.
Inventors
- 👤 Livshits Abram Lazarevich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:46
CPC Classifications
B; B23; B23H; B23H7/00; B23H7/14; B23H7/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
METHOD FOR OPTIMAL AUTOMATIC CONTROL OF ELECTRODE TOOL FEEDING IN ELECTRIC EROSION MACHINES, POWERED BY A GENERATOR CIRCUIT, THROUGH ELECTRICAL PULSES DERIVED FROM THE GENERATOR CIRCUIT SUPPLYING THE TOOL-TO-LOAD GAP COMPRISING THE STEPS OF: DERIVING ELECTRIC PULSES IN ACCORDANCE WITH THE SPACING OF THE TOOL-TO-WORK WITH RESPECT TO MINIMUM NO-LOAD VOLTAGE PULSES FOR SPACINGS GREATER THAN A PREDETERMINED MINIMUM SPACING, NO-GAP SHORT CIRCUIT CURRENT PULSES, AND OPTIMAL SPACING PULSES, INDEPENDENTLY SHAPING SAID ELECTRICAL PULSES, DETECTING BY DIGITAL LOGIC WHICH TYPE SPACING PULSES ARE BEING DEVELOPED, AND CONTROLLING THE TOOL FEEDING IN ACCORDANCE WITH THE TYPE PULSES BEING DETECTED WHEREBY THE OPTIMAL SPEED OF ELECTRODE TOOL FEEDING IN THE MACHINE IS ESTABLISHED IN ACCORDANCE WITH THE MINIMUM NO-LOAD VOLTAGE PULSES, SHORT CIRCUIT CURRENT PULSES AND OPTIMAL PULSES.
Claim 2
Dependent Claim
126 words
METHOD FOR OPTIMAL AUTOMATIC CONTROL OF ELECTRODE TOOL FEEDING IN ELECTRIC EROSION MACHINES, POWERED BY A GENERATOR CIRCUIT, THROUGH ELECTRICAL PULSES DERIVED FROM THE GENERATOR CIRCUIT SUPPLYING THE TOOL-TO-LOAD GAP COMPRISING THE STEPS OF: DERIVING ELECTRIC PULSES IN ACCORDANCE WITH THE SPACING OF THE TOOL-TO-WORK WITH RESPECT TO MINIMUM NO-LOAD VOLTAGE PULSES FOR SPACINGS GREATER THAN A PREDETERMINED MINIMUM SPACING, NO-GAP SHORT CIRCUIT CURRENT PULSES, AND OPTIMAL SPACING PULSES, INDEPENDENTLY SHAPING SAID ELECTRICAL PULSES, DETECTING BY DIGITAL LOGIC WHICH TYPE SPACING PULSES ARE BEING DEVELOPED, AND CONTROLLING THE TOOL FEEDING IN ACCORDANCE WITH THE TYPE PULSES BEING DETECTED WHEREBY THE OPTIMAL SPEED OF ELECTRODE TOOL FEEDING IN THE MACHINE IS ESTABLISHED IN ACCORDANCE WITH THE MINIMUM NO-LOAD VOLTAGE PULSES, SHORT CIRCUIT CURRENT PULSES AND OPTIMAL PULSES.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |