A double-pole rocker switch with thermal overload protection is constructed as a fully functional sub-assembly which may be tested and adjusted prior to insertion in a tubular housing. The sub-assembly is held in the housing by releasable locks for subsequent servicing. All component elements of the...http://www.google.ca/patents/US4258349?utm_source=gb-gplus-sharePatent US4258349 - Double-pole rocker switch with thermal protection
