Electricity: electrical systems and devices – Safety and protection of systems and devices – Motor protective condition responsive circuits
Patent
1989-07-17
1991-01-08
Broome, H.
Electricity: electrical systems and devices
Safety and protection of systems and devices
Motor protective condition responsive circuits
337 75, 337 66, H02H 504, H01H 7116
Patent
active
049841238
ABSTRACT:
A push-push (make-break) switch (43) including a thermally operated circuit breaker release is adapted for controlling an electric motor (42). The switch (43) may be employed by itself or used in conjunction with a standard control switch (41) connected to auxiliary contacts (15 and 18) which are normally closed but opened when switch (43) is activated. When switch (43) is momentarily activated, it becomes latched to continue operation of the motor (42) until the motor stalls upon completion of a task. The increased current draw of the motor (42) is sensed by a bi-metalic element (27) whose free end moves to automatically release the switch (43) and disrupt its continuity path. The switch (43) is in a compact, self-contained, design which provides various different operational features. In automotive applications, switch (43) provides convenient express operation of motor operated accessories such as power windows and the like.
REFERENCES:
patent: 3456125 (1969-07-01), Cousin et al.
patent: 3683239 (1972-08-01), Sturman
patent: 3737736 (1973-06-01), Stampfli
patent: 4068203 (1978-01-01), Unger
patent: 4092623 (1978-05-01), Kirkup
patent: 4123737 (1978-10-01), Hoagland, Jr.
patent: 4166993 (1979-09-01), Krasser
patent: 4227231 (1980-10-01), Hansen et al.
patent: 4263928 (1981-04-01), Kobayashi et al.
patent: 4363016 (1982-12-01), Unger
patent: 4370638 (1983-01-01), Takeda et al.
patent: 4376896 (1983-03-01), Takeda et al.
patent: 4451865 (1984-05-01), Warner et al.
patent: 4489360 (1984-12-01), Kraicar et al.
patent: 4518943 (1985-05-01), Giessner
patent: 4532570 (1985-07-01), Thornley et al.
patent: 4543515 (1985-09-01), Suzuki
patent: 4754362 (1988-06-01), Beller
Broome H.
Indyk Eugene S.
Moran John F.
Potter & Brumfield, Inc.
LandOfFree
Latching switching device having current responsive release does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Latching switching device having current responsive release, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Latching switching device having current responsive release will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-939956