Patent ID: 8833236
Filing Date: 2014-09-16
Classification: A47J

Abstract:
1. A beverage preparation machine, comprising: an electrically operated control unit; at least one electrically operated functional unit adapted for carrying out at least one process involved in the preparation or dispensing of the beverage, said functional unit being connected to the control unit; an electric circuit connected to a power supply for supplying the functional unit and the control unit with current (I), said electric circuit comprising a switch for switching the current on and off, said switch comprising: a sensing device for sensing the operations of the operating element, said sensing device being adapted to interact with the control unit so that each operation of the operating element is registered by the control unit; wherein the switch contacts are arranged such that the current is switched on when at least one of the first and second switch contacts is brought into a closed state, and the current is switched off only when both switch contacts are brought into an open state, wherein closing of the first switch contact by the operating element causes the control unit to send a signal and close the second switch contact, and wherein opening the first switch contact by the operating element causes the control unit to then open the second switch contact, which switches off the current.