Toilet tank supply valve assembly

Claim 1

A TOILET TANK SUPPLY VALVE ASSEMBLY COMPRISING A NORMALLY GENERALLY UPRIGHT CASING HAVING A WATER INLET PASSAGE ADAPTED FOR COMMUNICATION WITH A SOURCE OF WATER UNDER PRESSURE, AN INLET CONTROL VALVE DEFINING A PRESSURE CHAMBER IN SAID CASING, A TANK FILLING WATER OUTLET PASSAGE FROM SAID CASING, COMMUNICATION BETWEEN SAID TANK FILLING AND WATER INLET PASSAGES BEING INTERRUPTED BY CLOSING OF SAID INLET CONTROL VALVE, A PRESSURE EQUALIZING PASSAGE PLACING SAID PRESSURE CHAMBER IN COMMUNICATION WITH SAID INLET PASSAGE, A BLEED PASSAGE COMMUNICATING WITH SAID CHAMBER FOR RELIEVING THE PRESSURE IN SAID CHAMBER, A BLEED CONTROL VALVE, AND A FLOAT GUIDINGLY SUPPORTED FOR MOVEMENT BETWEEN ELEVATED AND LOWERED POSITIONS IN RESPONSE TO CHANGES IN THE WATER LEVEL IN AN ASSOCIATED TANK, SAID BLEED CONTROL VALVE BEING MOVED TO OPEN SAID BLEED PASSAGE UPON MOVEMENT OF SAID FLOAT TO SAID LOWERED POSITION AND BEING MOVABLE TO CLOSE SAID BLEED PASSAGE UPON MOVEMENT OF SAID FLOAT TO SAID ELEVATED POSITION, SAID INLET CONTROL VALVE BEING HELD CLOSED BY THE WATER IN SAID CHAMBER WHEN THE LATTER IS AT SUBSTANTIALLY SOURCE PRESSURE AND BEING OPENED BY WATER IN SAID INLET PASSAGE WHEN THE PRESSURE IN SAID CHAMBER IS RELIEVED BY OPENING SAID BLEED PASSAGE, TOGETHER WITH A SURGE DAMPER POSITIONED IN SAID PRESSURE CHAMBER, SAID SURGE DAMPER EXTENDING ACROSS SAID CHAMBER AND HAVING A PASSAGE THERETHROUGH OF SMALL DIAMETER RELATIVE TO THAT OF SAID CHAMBER, SAID SURGE DAMPER COMPRISING AN ELONGATED TUBULAR CENTRAL PORTION PROVIDING SAID PASSAGE THERETHROUGH AND AN OUTER SKIRT PORTION CONCENTRIC THEREWITH AND BEARING AGAINST THE INNER WALL OF SAID CHAMBER, SAID SKIRT PORTION OPENING TOWARD SAID INLET CONTROL VALVE.