초록 ▼

A control device for a valve (8) in the water supply conduit (7) of a reservoir (1), e.g. the water reservoir of a coffee machine, comprising a diaphragm (10) disposed in a reservoir wall and having an operating stud (11) for a tilting member (12, 40) swivelling between two end positions, the tiltin

A control device for a valve (8) in the water supply conduit (7) of a reservoir (1), e.g. the water reservoir of a coffee machine, comprising a diaphragm (10) disposed in a reservoir wall and having an operating stud (11) for a tilting member (12, 40) swivelling between two end positions, the tilting member being associated with a bistable switch. The tilting member (12, 40) is retained in one, first end position by magnetic force (15), and is then in the path of motion of the operating stud (11). The swivelling movement of the tilting member (12, 40) to the other, second end position is used for operating a microswitch (18) incorporated in the control circuit of the valve (8).

대표청구항 ▼

A valve control device for a coffee machine of the type including water supply conduit coupled thereto and a valve for controlling flow therein, the reservoir having a wall, said valve control device comprising a diaphragm capable of being disposed in said wall, stud means operably coupled to said d

A valve control device for a coffee machine of the type including water supply conduit coupled thereto and a valve for controlling flow therein, the reservoir having a wall, said valve control device comprising a diaphragm capable of being disposed in said wall, stud means operably coupled to said diaphragm for movement thereby, a tilting member arranged proximate said stud means, a control circuit for operating the valve and bistable switch means in said control circuit, means mounting said tilting member for swivelling movement about a swivel axis between first and second positions, said first position being in the path of movement of said stud means and said second position operably coupled to said switch means and magnetic means for retaining said tilting member in said first position until overcome by movement of said stud means enabling movement of said tilting member to said second position.