Omicron-ring seating tool

Claim 1

A TOOL FOR SEATING AN O-RING IN A COMPRESSED CONDITION BETWEEN A HOLLOW MEMBER AND A CAVITY OF A RETAINING MEMBER, SAID CAVITY BEING FORMED ABOUT THE END OF SAID HOLLOW MEMBER WHICH IS TOI BE SEALED WITH RESPECT TO SAID RETAINING MEMBER COMPRISING A GUIDE ROD HAVING A PILOT MEANS AT THE FORWARD END FOR INSERTION INTO SAID HOLLOW MEMBER, A SLEEVE SLIDEABLY AND COAXIALLY DISPOSED AROUND SAID GUIDE ROD AND MOVABLE IN A LONGITUDINAL DIRECTION BETWEEN A FIRST POSITION AND A SECOND POSITION, THE FORWARD END OF SAID SLEEVE BEING ADAPTED TO ENGAGE SAID O-RING DURING FORWARD MOVEMENT FROM SAID FIRST POSITION TO SAID SECOND POSITION TO PUSH SAID O-RING TO A SEATED POSITION IN SAID CAVITY, THE OUTER DIAMETER OF SAID FORWARD END OF SAID SLEEVE BEING LESS THAN THE DIAMETER OF SAID CAVITY THE INNER DIAMETER OF SAID SLEEVE BEING GREATER THAN THE OUTER DIAMETER OF SAD HOLLOW MEMBER SO THAT SAID FORWARD END OF SAID SLEEVE MAY SURROUND SAID END OF SAID HOLLOW MEMBER AND LIE WITHIN SAID CAVITY WHEN SAID O-RING HAS BEEN MOVED TO SAID SEATED POSITION, AND A REARWARDLY EXTENDING BEVELED FACE AROUND THE OUTER PERIPHERY OF SAID FORWARD END OF SAID SLEEVE FOR DISTORTING O-RING TO PREVENT PINCHING OF SAID O-RING BETWEEN SAID FORWARD END OF SAID SLEEVE AND THE LIP OF SAID CAVITY DURING THE SEATING OPERATION.