Electricity: electrothermally or thermally actuated switches – Thermally actuated switches – Expansible or vaporizable fluid actuated
Patent
1986-05-29
1987-12-01
Broome, Harold
Electricity: electrothermally or thermally actuated switches
Thermally actuated switches
Expansible or vaporizable fluid actuated
337319, H01H 3712
Patent
active
047107421
ABSTRACT:
A thermostat for use with an oven of an electric or gas range includes a first electrical contact, a second electrical contact and an actuating assembly including an actuating spring arm for opening and closing an electrical path between the first and second contacts. The spring arm has a fixed end mechanically and electrically coupled to the first electrical contact by a movable support member and a free end that moves between a contacting position and a noncontacting position with the second electrical contact. The spring arm is positioned for movement responsive to both a manually operable mechanism and a temperature responsive mechanism. The movable support member enables a coaxial alignment of the manually operable mechanism and the temperature responsive mechanism and provides a floating support for the spring arm, whereby the need for an over-travel mechanism is eliminated. The manually operable mechanism is movable to an OFF position and to a plurality of ON positions for selecting an oven operating temperature. The temperature responsive mechanism is movable in response to changes in oven temperature. A calibration mechanism accurately determines the position of the actuating assembly relative to the temperature responsive mechanism. In accordance with an important feature of the invention, the calibration mechanism is constructed and arranged to remain substantially unchanged by an impact to the manually operable mechanism.
REFERENCES:
patent: 3197595 (1965-07-01), Weber
patent: 3668592 (1972-06-01), Decker
Cors Craig M.
Kadlubowski Joseph C.
Broome Harold
Harper-Wyman Company
LandOfFree
Electric/gas oven thermostat does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electric/gas oven thermostat, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electric/gas oven thermostat will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1933765