bingham

Claim 1

A CAN FILLING APPARATUS FOR FILLING CANS WITH LIQUID, PASTE OR LIKE MATERIAL COMPRISING A FILLING HEAD HAVING A CYLINDER WITH AN UPRIGHT AXIS AND DEFINING A MEASURING CHAMBER, AN ASSOCIATED REMOVABLE PISTON AXIALLY RECIPROCABLE WITHIN SAID CYLINDER, A BULK STORAGE VESSEL FOR STORING THE LIQUID, SAID FILLING HEAD BEING CAPABLE OF PERIODICALLY RECEIVING IN ITS MEASURING CHAMBER LIQUID FROM SAID BULK STORAGE VESSEL, SAID LIQUID BEING SUBSEQUENTLY EXPELLED UNDER PRESSURE FROM SAID MEASURING CHAMBER BY SAID PISTON, SAID CYLINDER BEING OPEN AT ITS LOWER END AND BEING PROVIDED WITH A DETACHABLE CONTROL VALVE ASSEMBLY FOR CONTROLLING THE ADMISSION OF THE LIQUID TO SAID MEASURING CHAMBER FROM SAID BULK STORAGE VESSEL AND THE SUBSEQUENT DISCHARGE THEREOF, SAID DETACHABLE CONTROL VALVE ASSEMBLY INCLUDING A FIXED VALVE MEMBER OF SUBSTANTIALLY CUP-SHAPED FORMATION HAVING A BASE PORTION AND AN UPSTANDING ENDLESS SIDE WALL HAVING AN INTERNAL DIAMETER EQUAL TO THAT OF THE BORE OF SAID CYLINDER, MEANS FOR DETACHABLY CONNECTING SAID FIXED VALVE MEMBER WITHIN THE LOWER END OF SAID CYLINDER TO LENGTHEN THE BORE THEREOF AND FORM A PART OF SAID MEASURING CHAMBER FOR RECEIVING SAID PISTON, A TRANSFER PORT COMUNICATING AT ONE END THROUGH THE UPPER SURFACE OF SAID BASE PORTION WITH SAID MEASURING CHAMBER AND THE OTHER END THROUGH THE BASE PORTION TO DELIVER LIQUID TO SAID MEASURING CHAMBER FROM THE BULK STORAGE VESSEL, A DISCHARGE PORT EXTEND-