公开(公告)号：US3566416A

公开(公告)日：1971-03-02

申请号：US3566416D

申请日：1968-09-05

Applicant: PIETRO ALTIERI ,  EZIO GIUNCHIGLIA ,  ROBERTO TREBBI ,  GIUSEPPI CONTI

Inventor： ALTIERI PIETRO ,  GIUNCHIGLIA EZIO ,  TREBBI ROBERTO

IPC: E03D3/10

CPC classification number: E03D3/10 ,  Y10T137/3115 ,  Y10T137/86228

Abstract: A TANK FOR WATER CLOSET APPARATUS HAS FIRST AND SECOND CLOSED CHAMBERS COMMUNICATING VIA AN OPENING WHICH IS SMALLER IN SIZE THAN A DRAIN APERTURE FROM THE FIRST CHAMBER, THE SECOND CHAMBER BEING CONNECTED TO A SUPPLY CIRCUIT SUCH THAT WHEN THE DRAIN APERTURE IS CLOSED THE CHAMBERS ARE FILLED WITH WATER AND A COMPRESSED AIR CUSHION IS FORMED IN EACH CHAMBER WHEREAS WHEN THE DRAIN APERTURE IS OPENED WATER IS DISCHARGED THERETHROUGH RAPIDLY AND INTENSELY IN A FIRST DRAIN STAGE WHEREAFTER THE WATER FROM THE SECOND CHAMBER IS MORE SLOWLY AND GRADUALLY DISCHARGED DURING A SECOND DRAIN STAGE.

THE CHAMBERS ARE PREFERABLY FORMED BY TWO MOLDED SECTIONS CONNECTED TOGETHER WITH A GASKET INTERPOSED THEREBETWEEN.