APPARATUS INTENDED FOR CLEARING SANITARY APPLIANCES

摘要

An apparatus for unblocking or clearing sanitary appliances, such as sinks, latrines, etc., comprising a pump member or body terminating in an oblique mouthpiece and provided with a double-action piston. The double-acting piston comprises a pair of frustoconical rubber rings provided internally with spiral spring rings for biasing the rubber rings against the pump member in which the double-action piston reciprocates.