Title: Level control for surface treatment baths

Abstract: A level control device for pickling, degreasing, nickel-plating baths or the like, comprising at least two baths of different specific gravities, wherein the two baths are joined to a connecting pipe and the connecting pipe runs into the bath of lower specific gravity just below the bath level so that level control is possible without pumps or float switches or the like.

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Inventors: Kaup, Friedel (Gutersloh, DT)
Warnke, Heinrich (Marienfeld, DT)

Application Number: 403779
Filing Date: 1973-10-05
Publication_date: 1976-03-02
Assignee: Miele & Cie (Gutersloh, DT)
Primary Class(es): 137/453 137/577, 222/64
Other Classes:
US Patent Ref:

1225416	May, 1917	Khotinsky	137/577.
1626782	May, 1927	Brooks	137/577.
1668793	May, 1928	Wiggins	222/64.
1743966	Jan, 1930	Goudard	137/576.
1883139	Oct, 1932	Walter	222/64.
2059716	Nov, 1936	Swinburne	137/571.
2191019	Feb, 1940	Johnson	137/571.
2225498	Dec, 1940	Hollander	137/577.
2508170	May, 1950	Kaufmann	137/571.
2573468	Oct, 1951	Mackin	137/577.
3229518	Jan, 1966	Nilsson	137/571.
3425928	Feb, 1969	Emery et al.	137/579.

Other Refs:
Primary Examiner: Schwadron, Martin P.
Assistant Examiner: Walton, George L.
Attorney: Fleit & Jacobson