Injection fitting

Claim 1

IN COMBINATION WITH A FLUID TIGHT CHAMBER TO BE PRESSURIZED, AN INJECTION PRESSURIZED FITTING ADAPTED TO BE ASSOCIATED WITH THE OUTER CASING OF SAID CHAMBER INCLUDING, AN ANNULAR LOWER BODY, A REDUCED SECTION ON ONE END OF SAID BODY ABOUT ITS AXIAL CENTER, SAID REDUCED SECTION AND LOWER BODY FORMING A SHOULDER THEREBETWEEN, THE OUTER CASING OF SAID CHAMBER BEING PROVIDED WITH AN APERTURE, SAID ANNULAR LOWER BODY POSITION WITHIN SAID CHAMBER AND SAID REDUCED SECTION EXTENDING THROUGH SAID APERTURE, SAID SHOULDER PORTION PROVIDING MEANS TO RESTRAIN SAID LOWER BODY WITHIN SAID CHAMBER AND MEANS TO SEAL SAID FITTING TO SAID OUTER CASING, SAID BODY AND REDUCED SECTION HAVING A BORE EXTENDING AXIALLY THROUGHOUT ITS ENTIRE LENGTH, A STEM SNUGLY RECIEVED IN SAID BORE AND HAVING ONE END TERMINATING ABOVE SAID REDUCED SECTION OF SAID BODY, SAID STEM HAVING AN AXIALLY EXTENDING PASSAGEWAY THERETHROUGH, MEANS ADJACENT THE UPPER END OF SAID STEM FOR CONNECTION WITH THE SOURCE OF PRESSURIZATION AND FOR ALLOWING THE INJECTION OF A PRESSURIZATION MATERIAL THERETHROUGH, A DEFORMABLE PIN EXTENDING ANGULARLY THROUGH SAID BODY AND STEM, THE PORTION OF SAID PIN ADJACENT THE PASSAGEWAY BEING PROVIDED WITH A PORT IN ALIGNMENT WITH AND IN COMMUNICATION WITH SAID PASSAGEWAY AND SAID PIN BEING CAPABLE OF DEFORMING TO CLOSE SAID PORT AND TO FLOW INTO SAID PASSAGEWAY.