Plumbing tool

Claim 1

APPARATUS FOR UNBLOCKING PIPES AND THE LIKE COMPRISING A RIGID TUBULAR GAS CONDUCTING FRAME HAVING MEANS AT ONE END THEREOF FOR RECEIVING A FLAT BOTTOMED CONTAINER OF PRESSURIZED GAS OF A LENGTH GREATER THAN SAID CONTAINER RECEIVING MEANS TO EXTEND THEREABOVE AND DISCHARGE MEANS AT THE OTHER END THEREOF, SAID DISCHARGE MEANS INCLUDING RESILIENT SEALING MEANS FOR ENGAGING A DRAIN OPENING AND THE LIKE IN SEALING RELATIONSHIP, SAID CONTAINER RECEIVING MEANS BEING IN FIXED RELATION TO SAID RESILIENT SEALING MEANS, CONTAINER PUNCTURING MEANS PROJECTING INTO SAID CONTAINER RECEIVING MEANS, MEANS POSITIONED WITHIN SAID CONTAINER RECEIVING MEANS FOR PROVIDING A SEAL BETWEEN SAID PUNCTURING MEANS AND A CONTAINER, SAID PUNCTURING MEANS BEING MOUNTED TO PROVIDE PASSAGE OF GAS GROM A PUNCTURED CONTAINER INTO SAID FRAME, AN OPERATING HANDLE ASSEMBLY INCLUDING A BRACKET AND AN OPERATING HANDLE, SAID BRACKET BEING MOUNTED ON SAID CONTAINER RECEVING MEANS AND INCLUDING AN EXTENSION LATERALLY OFFSET FROM SAID CONTAINER RECEIVING MEANS, SAID EXTENSION TERMINATING BEYOND THE OPEN END OF SAID CONTAINER RECEIVING MEANS TO PROVIDE MOUNTING MEANS FOR AN OPERATING HANDLE, OPERATING HANDLE MEANS PIVOTALLY MOUNTED ON SAID EXTENSION AND MOVABLE FROM ONE POSITION TO A RUPTURING POSITION FOR PUNCTURING A CONTAINER AND MAINTAINING IT IN SEALED RELATIONSHIP WITH SAID SEAL MEANS WITHIN SAID CONTAINER MEANS, THE SPACING OF SAID HANDLE MEANS ON SAID EXTENSION WITH RESPECT TO SAID CONTAINER RECEIVING MEANS BEING PROPORTIONED TO PROVIDE ENGAGEMENT OF SAID HANDLE MEANS WITH THE EDGE OF SUCH CONTAINER IN SAID CONTAINER RECEIVING MEANS NEAREST SAID BRACKET AND TO MAINTAIN SAID ENGAGEMENT THROUGHOUT THE RUPTURING MOVEMENT THEREOF PROVIDING SUBSTANTIALLY CONSTANT LEVERAGE ON SUCH CONTAINER DURING RUPTURING AND SEALING THEREOF, AND SAID OPERATING HANDLE MEANS BEING OF SUFFICIENT LENGTH TO PROVIDE A MECHANICAL ADVANTAGE FOR RELATIVELY EASY PUNCTURING OF A CONTAINER POSITIONED WITHIN SAID CONTAINER RECEIVING MEANS.