Stepping switch for electrical appts. - uses several pushbuttons contacting resistor or connection strip (SW 20.11.78)
Реферат: The switch functions in a step-by-step manner for, e.g., motor speed control. A metallic band(21), convex across its width and fixed at both ends, is fed with current at one end. By depressing one of the push-buttons(39, 40, 41) the band is deformed makes contact with one of the spring action contacts(25, 26, 27) which are screwed to the lower contacts(28, 29, 30). To complete a circuit, e.g., the lower contacts may be connected to resistances of different value, each connected to the speed control circuit of a motor, and then back to the convex metallic band.
Control station for electrical installation
Номер патента: US11842864B2. Автор: Marco Pizzato. Владелец: PIZZATO ELETTRICA SRL. Дата публикации: 2023-12-12.