Appareil pour préparer des boissons chaudes.

N° de brevet: EP0483700 (A1)
Date de publication: 1992-05-06
Inventeur(s): WEBER RENE [CH];
Demandeur(s): ELDOM ROTHRIST AG [CH];
Classification: A47J31/30;A47J31/44;A47J31/46;
N° de demande: EP19910118280 19911026 
Numéro(s) de priorité: CH19900003485 19901102 
Devices for preparing a variety of hot drinks, such as, in particular, espresso machines, usually have a multi-path valve (2) which is used for conveying hot water or superheated steam generated in a water heater to different appliances, such as coffee filter, foaming nozzle and/or container. Due to the high temperatures and pressures, the multi-path valve is subject to considerable loads, which known valves cannot withstand or can withstand only if they are of complex construction. In the new device the multi-path valve is provided with a punched plate (8) and a rotatable plate cam (9). Rams (14) for closing distributor channels (5) are passed through the holes of the punched plate. The distributor channels are provided in a distributor block (1) on which the multi-path valve is flange-mounted. The position of the rams is determined by the rotational position of the plate cam provided with a guide crank for the rams. <IMAGE>

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