Electrical transmission or interconnection systems – Personnel safety or limit control features
Reexamination Certificate
2006-08-30
2008-12-30
Jackson, Stephen W (Department: 2836)
Electrical transmission or interconnection systems
Personnel safety or limit control features
Reexamination Certificate
active
07471017
ABSTRACT:
The present invention relates to a paper-breaker touching safety protector, of which the control circuit unit is connected with the paper-breaking machinery part via the motor driving circuit unit, the control circuit unit is connected with the conductive touch panel via the touch detecting circuit unit, the power unit is connected respectively with the control circuit unit and motor driving circuit unit, wherein the touch detecting circuit unit includes a bio-voltage control switch circuit and a ground switch circuit, the input control terminal of said bio-voltage control switch circuit is connected with the conductive touch panel, the output terminal of control switch circuit is connected with the input control terminal of the ground switch circuit, the output terminal of the ground switch circuit is connected with the input control terminal of the control circuit unit. The paper-breaker touching safety protector with this structure could effect a protective rule from the accident harm and a real-time monitor; the controlling is safe and sensitive with a simple circuit structure and reliable operation performance, it functions a convenient manipulation and wide usability with the safety.
REFERENCES:
patent: 3919596 (1975-11-01), Bellis
patent: 4380721 (1983-04-01), Bullock et al.
patent: 7195185 (2007-03-01), Matlin
Amaya Carlos
Aurora Office Equipment Co., Ltd. Shanghai
Carstens David W.
Carstens & Cahoon LLP
Jackson Stephen W
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