Liquid sampling device

Claim 1

A LIQUID SAMPLING DEVICE, COMPRISING, A TUBULAR BARREL, AN ENCLOSURE FOR THE BARREL INCLUDING HEAD AND BASE MEMBERS SECURED RESPECTIVELY AGAINST THE UPPER AND LOWER ENDS OF THE BARREL, SAID BASE MEMBER HAVING A PORT THEREIN COAXIAL WITH THE BARREL, MEANS CARRIED BY THE LOWER END FACE OF THE BASE MEMBER DEFINING AN ANNULAR VALVE SEAT ABOUT SAID PORT, SAID LAST-MENTIONED MEANS COMPRISING AN ANNULAR RETAINIMG GROOVE IN SAID LOWER END FACE, A RESILIENT SEAL RING SEATED IN SAID GROOVE, SAID SEALING RING COMPRISING AN ANNULAR BODY OF A RESILIENT MATERIAL AND A SUPPORTING RING OF RELATIVELY RIGID MATERIAL BONDED TO SAID RESILIENT MATERIAL, MEANS FOR CONTROLLING SAID PORT, COMPRISING, A VALVE HAVING A GENERALLY DISK SHAPE, AN ACTUATING LEVER FOR SAID VALVE, SAID LEVER BEING GENERALLY L-SHAPED AND COMPRISING A SINGLE VERTICAL ARM AND A SINGLE HORIZONTAL ARM, SAID VALVE BEING ROCKABLY SUPPORTED IN HORIZONTAL POSITION ON TOP OF THE HORIZONTAL ARM, MEANS ON THE HORIZONTAL ARM DEFINING LONGITUDINALLY SPACED ABUTMENTS LIMITING THE EXTENT OF ROCKING MOVEMENT OF SAID VALVE, SAID VERTICAL ARM VEING PIVOTALLY CONNECTED TO A SIDE OF SAID ENCLOSURE AT A POINT INTERMEDIATE THE HEAD AND BASE MEMBERS TO SWING IN A VERTICAL PLANE TOWARD AND AWAY FROM SAID BARREL WHEREBY TO SWING SAID VALVE TOWARD AND AWAY FROM PORT-CLOSING POSITION ON SAID SEAT, RESILIENT MEANS BIASING THE ACTUATING LEVER TOWARD THE PORT-CLOSING POSITION OF THE VALVE, RELEASABLE LATCH MEANS ARRANGED BETWEEN THE ENCLOSURE AND THE VALVE FOR HOLDING THE VALVE IN THE PORT-OPENING POSITION, AND TRIP MEANS MOVABLY MOUNTED ON THE ENCLOSURE OPERABLE IN RESPONSE TO LONGITUDINAL MOVEMENT RELATIVE TO THE ENCLOSURE TO RELEASE THE LATCH MEANS.