Core box sealing strip and method of attachment

Claim 1

A CORE BOX SEALING MEANS COMPRISING, IN COMBINATION, A PAIR OF SEPARABLE CORE BOX SECTIONS HAVING MATING WALL SURFACES SURROUNDING THE CORE BOX CAVITY, ONE OF SAID CORE BOX WALL SURFACES HAVING A SEMICIRCULAR GROOVE THEREIN, AND A SEAL STRIP FOR ENGAGEMENT WITHIN SAID GROOVE, SAID STRIP HAVING A LONGITUDINAL HOLLOW INTERNAL OPENING WITH THE EXTERIOR OF SAID STRIP NORMALLY BEING PROVIDED WITH A SEMICIRCULAR SURFACE AND A CONVEX CROWNED DIAMETRAL PORTION, SAID CROWNED PORTION BEING SECURED TO SAID FLAT SURFACE OF SAID ONE CORE BOX SURFACE WITH AN ADHESIVE WHEREBY TO PLACE SAID STRIP INTO AN ADHESIVELY STRESSED CONDITION TO INDUCE AN OUT-OF-ROUND SHAPE TO SAID SEMICIRCULAR SURFACE FOR SEALING PURPOSES, SAID STRIP BEING COMPLETELY RECEIVED WITHIN SAID GROOVE WHEN SAID CORE BOX SECTIONS ARE CLOSED TO PROVIDE A SEALING INSTRUMENTALITY LOCATED ENTIRELY TO ONE SIDE OF THE COMMON MEETING PLANE OF THE MATING WALL SURFACES OF SAID CORE BOX SECTIONS.