Thermally actuatable electrical switch construction

A thermally actuatable switch comprising

• a. a housing provided with a relatively thin and wide internal chamber which is closed out at the bottom and open at the top,
• b. a pair of spaced apart terminals extending into the top of said chamber,
• c. an end plug snap fitted into said housing to close out the top of said chamber and secure said terminals in place,
• d. a cylindrical contact having a diameter extending substantially across the entire thickness of said chamber and a length extending substantially the full width of said chamber,
• e. a coil spring fitted within said end plug between said terminals for urging said contact member downwardly away from said terminals,
• f. a temperature sensitive member fitted into the lower section of said chamber, which said temperature sensitive member is solid at temperatures below a predetermined design temperature and collapses at temperatures above said design temperature, and
• g. a reversely looped leaf spring extending across substantially the full thickness and width of said chamber and placed between said temperature sensitive member and said contact member to overcome the action of said coil spring and urge said contact member against said terminals, said leaf spring comprising a C-shaped center section and a pair of reversely bent free ends disposed respectively upwardly and downwardly from said center section, said free ends being medially bent to bear medially against said contact member for causing flush seating thereof against said terminals.