Electrical transmission or interconnection systems – Switching systems – Condition responsive
Patent
1989-01-23
1990-07-10
Leung, Philip H.
Electrical transmission or interconnection systems
Switching systems
Condition responsive
200 6139, 318283, 318446, H01H 4700
Patent
active
049409034
ABSTRACT:
A motor and manual actuated switch includes a motor control circuit for controlling the motor to rotate in either a clockwise or counterclockwise direction to actuate a mechanical switch between the open circuit and short circuit states. The control circuit includes a capacitor coupled in series with the motor winding to form a series circuit and a control switch for connecting a source of d.c. power across said serial circuit when in a first position and a short circuit across said series circuit when in a second position. When the control switch is moved to the first position, the capacitor charges, causing a current to flow through the motor winding during the charge time, thereby causing rotation in one direction. When the control switch is moved to the second position, the capacitor discharges through the winding, thereby causing opposite current flow and shaft rotation. The mechanical switch may be made to change states by actuation of a manual button or by rotation of the motor and includes a pin which rotates upon a change of states of the mechanical switch. The motor is interconnected with the pin by an extension and offset extending from the pin and an open center triangular shaped connector affixed to the motor shaft, with the offset extending into the open center. The extension acts as a spring to reduce the impact of the connector against the offset when the motor shaft rotates.
REFERENCES:
patent: 3361948 (1968-01-01), Sawyer
patent: 3424919 (1969-01-01), Howlett
patent: 3584166 (1971-06-01), Halicho
patent: 4267462 (1981-05-01), Frisbie
patent: 4364655 (1982-12-01), Parker
patent: 4433274 (1984-02-01), Dunhame
patent: 4727263 (1988-02-01), Sudler
Brown, Jr. Robert J.
Erturk Bahattin
Barron Harry W.
Gaffin Jeffrey A.
Jimenez Jose W.
Leung Philip H.
Square D Company
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