Electrical transmission or interconnection systems – Personnel safety or limit control features – Interlock
Patent
1993-05-25
1994-10-25
Callahan, Timothy P.
Electrical transmission or interconnection systems
Personnel safety or limit control features
Interlock
307491, 330288, H03F 130
Patent
active
053592360
ABSTRACT:
A normally non-conducting control device whose turn-on threshold decreases with increasing temperature is supplied with a control voltage which increases with temperature for causing a more rapid increase in the conduction of the control device when a predetermined temperature is exceeded.
REFERENCES:
patent: 4268759 (1981-05-01), Gilbert
patent: 4789819 (1988-12-01), Nelson
patent: 5149199 (1992-09-01), Kinoshita et al.
DeShazo, Jr. Thomas R.
Giordano Raymond L.
Callahan Timothy P.
Harris Corporation
Krawczyk C. C.
Nu Ton My. Trang
Schanzer Henry I.
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