Patent ID: 6182944
Filing Date: 2001-02-06
Classification: F23N,F24H,Y10T

Abstract:
A system for connecting a valve unit for gas water-heaters to a tank of the water-heater, in which a probe belonging to the valve unit is housed in the tank in a leaktight manner, comprising:a first element adapted to be secured to the valve unit,a second element adapted to be secured to and project outwardly from the tank and be housed in a seat of the first element, the second element having at one end a cover for the probe and having adjacent an opposite end an outer surface in which there is a transverse groove,a third element which is mounted on the first element for movement transversely of the second element and at least a portion of which extends in the seat in an arrangement such as to detachably engage the groove when the second element is housed in the seat so as to clamp the first and second elements to one another axially, the third element being resiliently deformable between a first position in which the said portion projects into the seat and a second position in which the said portion is outside the seat in order to release the groove, wherein the second element has a tubular body having, at said one end coupling means for coupling with a connector of the tank, and having at said opposite end, a head which can be housed at least partially in the seat and in which the groove is formed, wherein the third element comprises a clip which can clasp two opposite sides of the head between its arms, and further wherein the head has an end chamfer for moving the arms of the clip apart during its insertion in the seat.