Pilot control valve and method of making same

Claim 1

THE METHOD OF MAKING A PILOT CONTROL VALVE OF THE TYPE HAVING A BODY WITH A CHAMBER THEREIN, A FLUID NOZZLE IN THE CHAMBER AND A CONTROL MEMBER ADAPTED TO COOPERATE WITH THE NOZZLE TO CONTROL THE FLOW OF FLUID THERETHROUGH COMPRISING THE STEPS OF: FORMING A CYLINDRICAL OPENING IN THE BODY AND EXTENDING FROM THE CHAMBER IN A POSITION ADJACENT THE POSITION OF THE CONTROL MEMBER; PRESSING A PIECE OF RELATIVELY HARD, THINWALLED TUBING WITH A SMALL CENTRAL OPENING THERETHROUGH INTO A HOLLOW BUSHING FORMED OF A RELATIVELY SOFT AND DEFORMABLE MATERIAL SO THAT A FLUID-TIGHT SEAL IS OBTAINED BETWEEN THE BUSHING AND THE TUBING AND SO THAT AN END PORTION OF THE TUBING EXTENDS FROM ONE END OF THE BUSHING; AND FORCING SAID BUSHING INTO THE OPENING IN THE BODY TO ACCOMPLISH A FLUID-TIGHT FIT BETWEEN THE BUSHING AND THE BODY AND TO POSITION SAID END PORTION OF THE TUBING IN THE CHAMBER TO PROVIDE A FLUID NOZZLE DISPOSED IN A POSITION TO BE COOPERABLE WITH THE CONTROL MEMBER.