Hydraulic pressure volume transformer

Claim 1

A HYDRAULIC PRESSURE VOLUME TRANSFORMER CONSISTING OF A CASING DEFINING A CHAMBER, MEANS PROVIDING A CONDUIT CONNECTION TO SAID CHAMBER, A COVER PLATE, MEANS FASTENING SAID COVER PLATE TO SAID CASING, A PISTON HOUSING PROVIDED WITH A POSITION ROD SEAT, MEANS FASTENING SAID PISTON HOUSING TO SAID COVER PLATE, A PISTON ROD SLIDABLY MOUNTED IN SAID PISTON ROD SEAT AND EXTENDING INTO SAID CHAMBER, A FOLLOWER, A FLEXIBLE DIAPHRAGM PROVIDED WITH AN ANNULAR PORTION, MEANS SECURING SAID ANNULAR PORTION TO SAID CASING, AND MEANS FASTENING SAID FOLLOWER TO SAID FLEXIBLE DIAPHRAGM, A SPRING SEAT, MEANS MOUNTING SAID SPRING SEAT UPON SAID PISTON ROD FOR SLIDING ANGULAR MOVEMIENT OF SAID SPRING SEAT UPON SAID PISTON ROD, AND ABUTTING MEANS ON SAID PISTON ROD ENGAGEABLE AND DISENGAGEABLE WITH SAID SPRING SEWAT TO LIMIT THE SLIDING MOVEMENT OF SAID SPRING SEAT ON SAID PISTON ROD IN ONE DIRECTION, SAID SPRING SEAT ENGAGING SAID FOLLOWER, AND RESILIENT MEANS ACTING UPON SAID SPRING SEAT TO YIELDINGLY FORCE SAID PISTON ROD THROUGH SAID ABUTTING MEANS, SAID FOLLOWER WITHIN SAID CHAMBER; SAID CONDUIT CONNECTION TO POSITION WITHIN SAID CHAMBER; SAID CONDUIT CONNECTION TO SAID CHAMBER PROVIDING MEANS TO MOVE SAID FLEXIBLE DIAPHRAGM, SAID FOLLOWER AND SAID SPRING SEAT AGAINST THE FORCE OF SAID RESILIENT MEANS AND TO MOVE SAID PISTON ROD IN SAID PISTON ROD SEAT THROUGH ENGAGEMENT OF ONE END OF SAID PISTON ROD WITH SAID FOLLOWER.