A hold-open hinge mechanism for a molded plastic rainproof cover for a circuit breaker is disclosed. The hinge mechanism comprises an integrally molded pivot pin on the cover member and a hinge member on the cover base which pivotally engages the pivot pin. When the cover member is opened to a given...http://www.google.com/patents/US4979634?utm_source=gb-gplus-sharePatent US4979634 - Hold-open hinge mechanism for a molded plastic cover
