An electrical housing includes mounting flanges and mounting ear for positioning and attaching the housing against a stud. Rearwardly extending brackets permit attachment of the housing against the open side of a metal stud rigidly and securely, and also provide for bracing of the housing between the...http://www.google.de/patents/US4844275?utm_source=gb-gplus-sharePatent US4844275 - Non-metallic electrical connection housing
