Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific voltage responsive fault sensor
Patent
1980-01-14
1985-12-10
Rubinson, Gene Z.
Electricity: electrical systems and devices
Safety and protection of systems and devices
With specific voltage responsive fault sensor
361 78, 361160, H02H 320
Patent
active
045583897
ABSTRACT:
A microcomputer utilizing a crystal controlled clock and a power line responsive clock operates both the control system and into a safety timing means. The safety timing means can take the form of a pair of retriggerable monostable multivibrators that are operated to monitor the microcomputer along with a feedback circuit from a load control means. The feedback from the load control means senses the status of a safety switch means and provides the microcomputer with the ability to monitor and be monitored for safe operation.
REFERENCES:
patent: 3663958 (1972-05-01), Crane
patent: 3944889 (1976-03-01), Conway
patent: 4016459 (1977-04-01), Boehringer
patent: 4024437 (1977-05-01), Suzuki
patent: 4127887 (1978-11-01), Tanaka et al.
patent: 4178620 (1979-12-01), Yu
Black, Jr. Robert A.
Clark Rodney L.
Kidder Kenneth B.
Patton Paul B.
Feldman Alfred N.
Honeywell Inc.
Rubinson Gene Z.
Schroeder L. C.
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