Electricity: electrothermally or thermally actuated switches – Thermally actuated switches – With bimetallic element
Patent
1978-03-21
1980-06-17
Broome, Harold
Electricity: electrothermally or thermally actuated switches
Thermally actuated switches
With bimetallic element
337 85, 337365, H01H 3702, H01H 3752
Patent
active
042086469
ABSTRACT:
A thermally responsive electric switch for protecting electric motors comprises two sheet metal switch terminal members, one switch member having ear portions deformed around the other switch member to secure the switch members together. An intervening strip of insulation maintains electrical isolation between the two switch members and may be impregnated with adhesive to bond the switch members. One switch member mounts a thermally responsive bimetallic actuator carrying a movable contact and the other mounts a fixed contact. The fixed contact projects through an aperture in the insulation, such aperture registering with an aperture in the switch member carrying the movable electrical contact so that the electrical contacts engage by way of the registering apertures; thus the contacts are disposed in a protected position. Interengaging recesses and dimples may be provided in the switch members to prevent relative rotation therebetween.
REFERENCES:
patent: 2790046 (1957-04-01), Richardson et al.
patent: 2916586 (1959-12-01), Kuhn
patent: 3066206 (1962-11-01), Dales
patent: 3067306 (1962-12-01), Epstein
patent: 3430177 (1969-02-01), Audette
patent: 4103269 (1978-07-01), Grable et al.
LandOfFree
Thermally responsive electric switch does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Thermally responsive electric switch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermally responsive electric switch will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-477001