Auxiliary switch for appts being serviced - has sockets for main switch contacts, and control lever
Реферат: An auxiliary switch for heating equipment, burners, pumps etc., which must be kept in operating while a defective control switch is removed for servicing, consists of a flat base (19) with holes (14) for securing screws. The cover of the main switch fits over this base so that its contacts then fit into corresponding contact holes (17) in a raised port (16) of the auxiliary switch, connections being suitably made to the control system for the equipment. When the main switch requires to be removed for servicing, a switch-over lever (22) is operated to transfer the connections to the auxiliary switch. Locating pegs (25) on the base, and the shape (24) of the raised part effectively locate the main switch.
Energy saving switch for and process for conserving energy while operating a water heater
Номер патента: US20130327843A1. Автор: Robert Monetti. Владелец: Individual. Дата публикации: 2013-12-12.