Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1979-01-15
1980-09-23
Mack, John H.
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
2041296, 204224R, 204222, 204297R, 204212, C25F 316, C25F 700, C25D 1728
Patent
active
042241235
ABSTRACT:
In the method aspect of the invention, a tablet compressing tool having a concavity at its working end, is placed in a vertically aligned position with the concavity downward, contacted by an electrolyte at only the working tip thereof, and agitated by a circular movement in a horizontal plane while being subjected to a suitable DC current potential. The electrolyte may be conventional.
One effective apparatus for practicing the above method comprises a suitable electrolyte containing tank having cathode means, such as a trough or channel-shaped electroconductive mesh, extending therethrough, and tool clamping means on the upper side of said tank arranged for holding a plurality of said tools aligned in a vertical position and extending into electrolyte within said tank. Said tool clamping means is mounted for circular movement in a horizontal plane and arranged with means including prime mover means for effecting such movement. Suitable electrical connections are made to the cathode means and to the tool for the impressing therebetween of the desired potential.
REFERENCES:
patent: 2430028 (1947-11-01), Pfann et al.
patent: 2763608 (1956-09-01), Pool
patent: 2934631 (1960-04-01), Imalis et al.
patent: 3332869 (1967-07-01), Bent et al.
Mack John H.
The Upjohn Company
Valentine D. R.
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