Electricity: electrothermally or thermally actuated switches – Electrothermally actuated switches – With bimetallic elements
Patent
1980-05-02
1982-05-18
Beha, Jr., William H.
Electricity: electrothermally or thermally actuated switches
Electrothermally actuated switches
With bimetallic elements
200144R, 200145, 335 11, 335 14, 335186, 337 66, H01H 7330
Patent
active
043307728
ABSTRACT:
A pushbutton circuit breaker switch, including two sets of contacts, connected in series. One set of contacts, the switch contacts (24, 30), open and close during normal on-off switch cycling. The other set of contacts, the breaker contacts (36, 42, 54), open only on overload, leaving the switch contacts closed. Of the three breaker contacts, two are stationary (36, 42) and one is a movable bridging contact (54). This movable contact is mounted on an insulative slide block (44), and an overload slides into an insulative enclosure (10g) in the housing (10) of the switch. Thus the movable contact is almost completely surrounded by insulative material cutting off any arc formed. The switch contacts are opened and closed by a W-cam (16). The actuator for the W-cam is a trapeze spring (14), the length of the horizontal portion of which is greater than the width of the W-cam, so that the center high point (16a) of the W-cam passes through the actuator without interference therewith.
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Hastings Jerome K.
Lamboy George F.
Autio W. A.
Beha Jr. William H.
Eaton Corporation
Grace C. H.
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