H - Electricity – 01 – H
Patent
H - Electricity
01
H
306/110, 306/117
H01H 37/76 (2006.01) H01T 1/14 (2006.01) H02H 7/24 (2006.01) H02H 9/04 (2006.01)
Patent
CA 1244861
-9- ABSTRACT "ELECTRICAL COMPONENTS INCORPORATING A TEMPERATURE RESPONSIVE DEVICE" An electrical component comprising a temperature responsive device including an electrically conducting member of spring temper in contact with a thin insulating coating of a substance which decomposes on being subject to an elevated temperature thereby allowing the conducting member to effect a short circuiting operation. Suitably the conducting member is coated with a thin layer of polyurethane varnish which vapourises at the elevated temperature, and the conducting member is arranged to engage contacts/under spring tension. In one embodiment the conducting member is a wire of phosphor bronze or beryllium copper formed as a loop with spring arms, the loop being positioned on a pin centrally disposed between spaced contacts engaged by the arms under spring tension.
493796
Dubilier Plc
Ridout & Maybee Llp
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