Electricity: motive power systems – Motor-reversing – Periodic- or intermittent-reversing
Patent
1988-07-13
1989-09-12
Ro, Bentsu
Electricity: motive power systems
Motor-reversing
Periodic- or intermittent-reversing
318286, 352244, H02P 122
Patent
active
048663557
ABSTRACT:
Apparatus for remotely controlling the movement of a panning/tilt head motor for a surveillance system is interconnected by a minimum number of conductors with the motor for bi-directional rotation of the panning/tilt head using first and second switching elements to establish manual or automatic control modes of operation and with a four-circuit, double-break switch connected between a remote active control circuit and the field coils of the motor to determine the sector rotation of said motor with engagement with stop elements manually positioned on the panning/tilt head between greater than zero degrees and 360 degrees.
REFERENCES:
patent: 2554080 (1951-05-01), Yardeny et al.
patent: 2767363 (1956-10-01), Chubb
patent: 3164838 (1965-01-01), Heinrich
patent: 3405336 (1968-10-01), Davidoff
patent: 3437753 (1969-04-01), Stith
patent: 4562477 (1985-12-01), Ogasawara et al.
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