Collapsible bag type applicator

Claim 1

A COLLAPSIBLE BAG TYPE TUBE FOR CONTAINING AND APPLYING FLUENT PLASTIC CEMENTITIOUS MATERIAL COMPRISING AN ELONGATED BLANK OF STRONG FABRIC FOLDED DOUBLE LENGTHWISE THEREOF, A LAYER OF SEALING MATERIAL IMPERVIOUS TO THE INTENDED CONTENTS OF THE TUBE COATING AND SEALING THE INNER SURFACE OF THE FOLDED FABRIC BLANK, ONE END OF THE FOLDED FABRIC BLANK BEING TAPERED, A FOLDED HEM ALONG THE INITIALLY FREE EDGES OF THE UNTAPERED END, THE LONGITUDINAL EDGE, AND THE TAPERED END PORTION OF THE DOUBLE, TAPERED BLANK TO PROVIDE A STRONG AND FIRMLY SEALED BAG STRUCTURE, THE APEX OF THE TAPERED END PORTION OF THE BAG THUS FORMED BEING TURNCATED AND UNHEMMED TO PROVIDE A FILLER OPENING, A CONICAL CAP OF STIFF, SHEET MATERIAL OF A SIZE AND SHAPE FITTED SNUGLY ONTO THE TAPERED END PORTION OF THE BAG THUS FORMED WHEN THE LATTER IS FILLED WITH A FLUENT, PLASTIC, CEMENTITIOUS MATERIAL, AND ADHESIVE MEANS ADHESIVELY INTERCONNECTING THE INTERIOR OF THE CONICAL CAP WITH THE EXTERIOR OF THE PORTION OF THE TAPERED END OF THE BAG COVERED BY THE CAP.