Electricity: electrothermally or thermally actuated switches – Thermally actuated switches – With bimetallic element
Patent
1984-03-28
1985-11-05
Harris, George
Electricity: electrothermally or thermally actuated switches
Thermally actuated switches
With bimetallic element
337360, 337368, H01H 3712
Patent
active
045517029
ABSTRACT:
A condition responsive switching device has a cup-shaped case, a body secured in abutting assembled relationship to the case, the body and case defining a chamber, a switch mounted on the body in the chamber providing a fixed electrical contact and a cantilever mounted leaf spring, the free end of the leaf spring overlying the fixed contact and providing a mobile contact movable into and out of engagement with the fixed contact, a snap disc in the chamber on the side of the leaf spring remote from the body, the snap disc being movable between two positions of stability in response to two different predetermined environmental conditions, the central portion of the snap disc moving from each position of stability to the other position of stability first with a predetermined amount of creep movement followed by snap movement, the disc and spring arm being operably connected so that the switch is closed when the disc is in one position of stability and is open when the disc is in the other position of stability, the case having an end wall portion thereof selectively plastically deformed generally inwardly as to cause said leaf spring to be deflected by the disc beyond the initial closed position of the switch when the disc is in the one position of stability.
REFERENCES:
patent: 3451028 (1969-06-01), Schmitt
patent: 3636622 (1972-01-01), Schmitt
Harris George
Hi-Stat Manufacturing Company, Inc.
Romanski Lon H.
LandOfFree
Thermostatic switch and method of manufacture does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Thermostatic switch and method of manufacture, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermostatic switch and method of manufacture will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-297639