Electrical transmission or interconnection systems – Personnel safety or limit control features – Interlock
Patent
1977-10-31
1978-12-26
Zazworsky, John
Electrical transmission or interconnection systems
Personnel safety or limit control features
Interlock
307264, 307296A, 307317R, 357 36, 357 46, 357 51, 330261, 330285, H03K 114
Patent
active
041318099
ABSTRACT:
A symmetrical arrangement for forming a variable alternating-current resistance, which circuit arrangement comprises an elongate p,n junction or a ladder network of p,n junctions and resistors, the elongate p,n junction or the p,n junctions of the ladder network being connected between a source of control current and a source of bias current.
REFERENCES:
patent: 2910634 (1959-10-01), Rutz
patent: 3010033 (1961-11-01), Noyce
patent: 3509446 (1970-04-01), Mullaly
patent: 3803504 (1974-04-01), Takahashi
Briody Thomas A.
Rasco Marcus S.
U.S. Philips Corporation
Zazworsky John
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