Patent ID: 6601608
Filing Date: 2003-08-05
Classification: A47L,F16K,Y10T

Abstract:
Suction-appliance attachment (1) having a suction channel (5), there being disposed in the suction channel (5) a component (9) which is to be monitored in terms of insertion and downstream of the component (9), as seen in flow direction (R), a valve (V) which has a movable closure body (6) in form of a valve ball (7) secured freely in a valve chamber (8), an inlet cross-section of the valve chamber (8), which is reduced in size by insertion of the component (9) which is to be monitored, effects a flow deflection (S) which is sufficient for opening position of the valve (V), wherein, when the component (9) is not inserted, opening cross-section is large enough for the valve ball (7) to be pressed into its closure position by flow pressure.