| 摘要 |
The invention relates to electric heating elements, particularly of the open coil type, for installation in apparatus, such as room air conditioners or the like, wherein a thermostat is required and is positioned with its heat sensor in close proximity to an active heating portion of the heating element so as to be extremely sensitive to variations in heat. The invention insures that the thermostat is always properly installed, especially after service work has been performed on the air conditioner, and/or the heating element. Briefly, a tab extends from a terminal of the thermostat and is adapted to fit in only one relation within an opening in an insulator bushing. The bushing has an extending lug to fit in predetermined manner with a portion of a cross strip of a supporting frame to hold the bushing from substantial rotation.
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