Valve

Claim 1

A LIQUID FLOW CONTROL VALVE MEMBER FOR USE WITH A DEVICE OF THE CHARACTER DESCRIBED EMBODYING A LIQUID LINE AND ENGAGEMENT MEANS FOR ENGAGING AND OPERATING SAID LIQUID FLOW CONTROL VALVE MEMBER, SAID VALVE MEMBER COMPRISING A MAIN BODY PORTION HAVING A RESTRICTED LIQUID PASSAGEWAY THEREIN, MEANS ON THE END OF SAID BODY PORTION ADJACENT SAID PASSAGEWAY FOR COUPLING SAID PASSAGEWAY TO SAID LIQUID LINE, SAID BODY PORTION HAVING A HOLLOW TAPERED SECTION INTERNALLY THEREOF OF A CONTROLLED LENGTH AND OF A GIVEN TAPER AND HAVING A VALVE SEAT ADJACENT ITS NARROWEST END AND IN COMMUNICATING RELATION WITH SAID PASSAGEWAY, SAID VALVE MEMBER EMBODYING A BALL SHAPED FACE PART OF A DIAMETER SLIGHTLY LARGER THAN THE DIAMETER OF THE RESTRICTED PASSAGEWAY AND CONTROLLED IN ACCORDANCE WITH THE TAPER OF SAID HOLLOW TAPERED SECTION SUCH AS TO HAVE THE MAJOR PORTION THEREOF LYING WITHIN SAID TAPERED SECTION AND TO HAVE LINE CONTACT WITH SAID SEAT WHEN IN ENGAGING RELATION THEREWITH, SAID BODY PORTION HAVING AN ENLARGED CYLINDRICALLY SHAPED OPEN AREA THEREIN COMMUNICATING WITH THE HOLLOW TAPERED SECTION AND HAVING AN INWARDLY EXTENDING END PART OPPOSITE SAID TAPERED SECTION AND AN OPEN END WHOSE MAJOR AREA IS OF A SIZE SMALLER THAN THE DIAMETER OF SAID CYLINDRICALLY SHAPED OPEN AREA, SAID CYLINDRICALLY SHAPED OPEN AREA HAVING OPENINGS IN THE SIDE WALLS THEREOF EACH OF AN AREA SUBSTANTIALLY EQUAL TO THE CROSS SECTIONAL AREA OF THE PASSAGEWAY, SAID VALVE MEMBER FURTHER EMBODYING AN ENLARGED PART FUNCTIONING AS ACTUATING MEANS INTERNALLY OF SAID CYLINDRICALLY SHAPED OPEN AREA AND LARGER THAN THE DIAMETER OF SAID BALL SHAPED FACE PART AND HAVING A PART EXTENDING OUTWARDLY OF SAID OPEN END AND ADAPTED TO BE ENGAGED BY SAID ENGAGEMENT MEANS, SAID ACTUATING PART BEING OF A LENGTH SUCH AS TO PREVENT SAID PART HAVING THE BALL SHAPED FACE PART FROM BEING DISPLACED FROM WITHIN SAID HOLLOW TAPERED SECTION WHEN SAID ACTUATING PART MOVES IN A DIRECTION AWAY FROM SAID VALVE SEAT AND ENGAGES SAID INWARDLY EXTENDING END PART AND SUFFICIENT IN LENGTH TO PROVIDE FOR RESTRICTED FLOW FROM SAID PASSAGEWAY BY SAID BALL SHAPED FACE PART TO SAID OPENINGS.