公开(公告)号：US3623206A

公开(公告)日：1971-11-30

申请号：US3623206D

申请日：1970-01-07

Applicant: GEN DYNAMICS CORP

Inventor： HAGER ROBERT N JR

IPC: B01J3/03 ,  F16K51/02 ,  F17C13/04 ,  B23P19/04

CPC classification number: B01J3/03 ,  F16K51/02 ,  F17C13/04 ,  F17C2205/0323 ,  F17C2205/0382 ,  Y10T29/53096 ,  Y10T29/53687

Abstract: A VALVE TOOL FOR REMOVING AND INSTALLING THE CAP PORTION OF A FITTING ATTACHED TO A CONTAINER OR VACUUM SYSTEM WHILE THE CONTAINER OR SYSTEM IS BEING EVACUATED. THE BELL-SHAPED BODY OF THE VALVE POSITIONS OVER THE PUMPDOWN FITTING DURING VACUUM PUMPING THEREOF. A SOCKET WRENCH ENCLOSED WITHIN THE VALVE BODY ENGAGES THE CAP PORTION OF THE FITTING FOR INSTALLATION OR REMOVAL THEREOF BY MANUAL OPERATION OF A HANDLE OUTSIDE OF THE VALVE BODY. A SHAFT EXTENDING THROUGH A SEAL IN THE VALVE BODY, CONNECTS THE SOCKET WRENCH TO THE HANDLE. A PORT LOCATED IN THE VALVE BODY PROVIDES PASSAGE MEANS FOR EVACUATING GASES FROM THE SYSTEM OR CONTAINER.