Intermittently operable electrical switch assembly

Details Intermittently operable electrical switch assembly Intermittently operable electrical switch assembly

1976-10-20

1978-06-13

Harris, George

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

With longitudinally expansible solid element

337141, H01H 6106

Patent

active

040952088

ABSTRACT:
An intermittently operable switch assembly comprises an electrically insulating base having mounted on one surface thereof a first electrical terminal for connection to a power supply, a second electrical terminal for connection to an apparatus to be operated intermittently, and a third electrical terminal for connection to an indicator lamp. On the opposite surface of the base are mounted a first support carrying an armature at one end thereof which is engageable with a first fixed contact and having an electrical winding thereon, a second support including a mounting flange and having a snap action circuit breaker mounted thereon, and a third support having a second fixed contact thereon with which the circuit breaker is arranged to engage. The first, second and third terminals are secured to the base respectively by means of three rivets with which they are respectively electrically connected. The rivets also serve to mount the first, second and third supports on the base, and to provide electrical connections between the terminals and the supports. The electrical winding on the first support is disposed with its axis parallel to the base and to the armature; the snap-action circuit breaker is oriented parallel to the base; and the mounting flange of the second support extends transversely with respect to the axis of the winding.

REFERENCES:
patent: 3011037 (1961-11-01), Welsh
patent: 3441890 (1969-04-01), Prickett

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