Electrical transmission or interconnection systems – Personnel safety or limit control features – Interlock
Patent
1980-04-03
1983-03-01
Zazworsky, John
Electrical transmission or interconnection systems
Personnel safety or limit control features
Interlock
307290, 307359, H03K 5153
Patent
active
043755984
ABSTRACT:
A comparator receives an input voltage as well as one of two comparator levels and compares them to selectively produce one of two outputs having different values. A comparator level generator is connected to the comparator for selectively applying one of the two comparator levels to the comparator under the control of a controlling means. The controlling means is connected to both of the comparator level generator and the comparator for controlling the comparator level generator so as to change the comparator level in response to the new state of the comparator.
REFERENCES:
patent: 3416004 (1968-12-01), Taylor
patent: 4104547 (1978-08-01), Frederiksen et al.
patent: 4184087 (1980-01-01), Nutz
patent: 4259601 (1981-03-01), Stein
Toko Inc.
Zazworsky John
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