Electric heating – Metal heating – Cutting or disintegrating
Patent
1989-12-04
1990-12-18
Leung, Philip H.
Electric heating
Metal heating
Cutting or disintegrating
219 6914, 2611191, B23H 700, B23H 1100
Patent
active
049788272
ABSTRACT:
In a machining device comprising: a machining vessel containing a machining solution in which a workpiece has been immersed; air stream producing elements for producing a stream of air above the surface of the solution in the machining vessel in parallel with the solution surface; and air stream sucking elements for sucking the stream of air thus produced, thereby to remove gas produced from the solution during machining, the air stream producing elements and/or the air stream sucking elements are moved vertically to a predetermined height from the solution surface according to the level of the machining surface in the machining vessel, so that the gas thus produced is positively removed.
REFERENCES:
patent: 3864437 (1975-02-01), Blaszkowski
patent: 3878352 (1975-04-01), Inoue
patent: 4577082 (1986-03-01), Inoue
patent: 4590352 (1986-05-01), Inoue
Evans Geoffrey S.
Leung Philip H.
Mitsubishi Denki & Kabushiki Kaisha
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