Apparatus for immobilizing a working shaft at a predetermined an

Details Apparatus for immobilizing a working shaft at a predetermined an Apparatus for immobilizing a working shaft at a predetermined an

1975-03-26

1977-03-08

Schaefer, Robert K.

Electricity: motive power systems

Plural diverse motor controls

Running-speed control

318467, G05B 501

Patent

active

040114902

ABSTRACT:
A positioning drive with an electronic regulator for controlling the r.p.m. of a working shaft has a regeneratively coupled amplifier with variable negative feedback adjustable from a normally high value to a minimum value for the final braking action, whereby the shaft is abruptly brought to rest at a predetermined angular position.

REFERENCES:
patent: 3532953 (1970-10-01), Daab et al.
patent: 3860860 (1975-01-01), Moran et al.
patent: 3872365 (1975-03-01), Vignaud et al.
patent: 3904890 (1975-09-01), Wenrich et al.

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