Abstract: An interlock system for actuating a switch to interrupt a flow of electrical current to a component of a domestic electrical appliance is described. The current is interrupted unless a sensor indicates that the appliance is in a safe condition, and the system includes a rod-like member which is turned about its own axis through at least a predetermined angle, when the appliance is safe, to actuate the switch to permit current to flow. The safe condition is typified by the secure placement of a lid or cover on a receptacle in a manner intended for operation of the appliance. Moreover, the lid or cover for the receptacle may be formed with an upstanding, chimney-like feed-tube through which food items can be added for processing in the receptacle, and a “pusher” device, sized to fit closely within the feed tube, is further provided, by means of which a user can urge foodstuffs into the receptacle for processing.

Abstract: An interlock system for actuating a switch to interrupt a flow of electrical current to a component of a domestic electrical appliance is described. The current is interrupted unless a sensor indicates that the appliance is in a safe condition, and the system includes a rod-like member which is turned about its own axis through at least a predetermined angle, when the appliance is safe, to actuate the switch to permit current to flow. The safe condition is typified by the secure placement of a lid or cover on a receptacle in a manner intended for operation of the appliance. Moreover, the lid or cover for the receptacle may be formed with an upstanding, chimney-like feed-tube through which food items can be added for processing in the receptacle, and a “pusher” device, sized to fit closely within the feed tube, is further provided, by means of which a user can urge foodstuffs into the receptacle for processing.

Abstract: The invention provides an interlock system whereby operation of a domestic appliance such as a food processor containing an electric motor capable of driving a bladed or similar processing tool at relatively high speed is inhibited unless a vessel having a first or a second base configuration is securely mounted to the appliance so as to contain the tool; the vessel having a lid or cover intended to be in place for safe operation when the processing tool is driven by the motor. A vessel-supporting surface of the appliance carries several up-standing latches, each of which is formed with features capable of co-operating with vessels having either of the base configurations to temporarily latch either type of vessel operationally to the appliance.

Abstract: The invention provides an interlock system whereby operation of a domestic appliance such as a food processor containing an electric motor capable of driving a bladed or similar processing tool at relatively high speed is inhibited unless a vessel having a first or a second base configuration is securely mounted to the appliance so as to contain the tool; the vessel having a lid or cover intended to be in place for safe operation when the processing tool is driven by the motor. A vessel-supporting surface of the appliance carries several up-standing latches, each of which is formed with features capable of co-operating with vessels having either of the base configurations to temporarily latch either type of vessel operationally to the appliance.