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US4147609A
Expired / Lapsed
US
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Apparatus for electrochemical machining of metal parts
Assignee: Individual
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Filing: 1977-12-15
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Granted: 1979-04-03
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Expires: 1997-12-15
Abstract
Abstract An apparatus for electrochemical machining of metal parts by pumping an electrolyte through a machining zone and by applying a potential across a part to be machined and an electrode-tool with the aid of bar-type electrodes enclosed in an envelope of an elastic dielectric material to protect contact surfaces of the bar-type electrodes against electrochemical erosion.
Inventors
- 👤 Vladimir I. Suslin
- 👤 Alexandr I. Dubovik
- 👤 Boris A. Makeev
- 👤 Vitaly A. Pilipenko
- 👤 Zinovy A. Lekarev
- 👤 Boris S. Kolyshkin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:06
CPC Classifications
B; B23; B23H; B23H11/00; B23H11/006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
In an apparatus for electrochemical machining of metal parts comprising, an electrode-tool energized for electrochemical machining of a metal workpiece, bar-type electrodes having contact end surfaces for applying a potential across the workpiece to be machined and said electrode-tool, an elastic sleeve of a dielectric material for each bar-type electrode disposed over the corresponding bar-type electrode and having an axial portion extending axially beyond said contact surface, whereby when each said bar-type electrode is engaged with the contact surface thereof making contact with said workpiece for applying a potential thereto the axial portion of the sleeve is compressed and deformed to effect a fluidtight seal circumferentially of the corresponding contact surface and surface area of the workpiece contacted.
Claim 2
Dependent Claim
118 words
In an apparatus for electrochemical machining of metal parts comprising, an electrode-tool energized for electrochemical machining of a metal workpiece, bar-type electrodes having contact end surfaces for applying a potential across the workpiece to be machined and said electrode-tool, an elastic sleeve of a dielectric material for each bar-type electrode disposed over the corresponding bar-type electrode and having an axial portion extending axially beyond said contact surface, whereby when each said bar-type electrode is engaged with the contact surface thereof making contact with said workpiece for applying a potential thereto the axial portion of the sleeve is compressed and deformed to effect a fluidtight seal circumferentially of the corresponding contact surface and surface area of the workpiece contacted.
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) | 1982-04-02 | 1982-10-02 | 1983-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-02 | 1986-10-02 | 1987-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-02 | 1990-10-02 | 1991-04-03 | $7700.00 | Window Closed / Lapsed |