Dial adjustment and calibration of oven control devices
First Claim
1. A temperature control device for regulating the operating temperature of a heating device to a predetermined temperature value, said temperature control device including an operating shaft adapted to pass through an aperture in a wall of said heating device and a knob attached to said operating shaft for adjusting by manipulation of said operating shaft said predetermined temperature value, cooperating indicating means on said wall and said knob, and means for mounting said temperature control device in a first fixed position relative to said wall, said means for mounting being adapted to be released to permit rotation of said temperature control device relative to said wall and for refixing said temperature control device in a second fixed position angularly displaced from said first position relative to said wall so as to provide for adjustment of the calibration of said temperature control device.
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Accused Products
Abstract
The present invention relates to the calibration of a thermostat used for controlling the temperature of an oven. Calibration is provided for in the invention by two slots cut out in the oven wall or range faceplate through which screws pass to mount the thermostat to this wall or faceplate. Also passing through this wall or faceplate is the operating shaft of the thermostat to which the control knob will be attached. The screws further position an indicating dial. The screws may be loosened to allow the thermostat to be rotated relative to the oven wall. The indicating means is rotatable with the thermostat relative to the oven wall. A reference point is provided on the oven wall so that the amount of recalibration is readily determined. The present thermostat provides a novel calibration arrangement.
12 Citations
8 Claims
- 1. A temperature control device for regulating the operating temperature of a heating device to a predetermined temperature value, said temperature control device including an operating shaft adapted to pass through an aperture in a wall of said heating device and a knob attached to said operating shaft for adjusting by manipulation of said operating shaft said predetermined temperature value, cooperating indicating means on said wall and said knob, and means for mounting said temperature control device in a first fixed position relative to said wall, said means for mounting being adapted to be released to permit rotation of said temperature control device relative to said wall and for refixing said temperature control device in a second fixed position angularly displaced from said first position relative to said wall so as to provide for adjustment of the calibration of said temperature control device.
Specification