Patent ID: 8024900

Claim:
An apparatus for creating a firestopped through-penetration in a poured, solidified concrete partition, comprising: a removable sleeve with an outer surface and a widest end and a narrowest end; and, an intumescent firestop ring detachably mounted on the outer surface of the sleeve, adjacent the widest end of the sleeve; wherein the sleeve is configured to create a through-penetration in a poured concrete partition, wherein the sleeve and ring are arranged such that removal of the sleeve from the poured, solidified concrete partition detaches the firestop ring from the sleeve thus providing a through-penetration with an intumescent firestop ring positioned within the through-penetration, wherein the ring comprises an inner surface and an outer surface and wherein the apparatus comprises at least one retainer attached to the firestop ring, wherein the retainer has at least a retaining portion that protrudes outward with respect to the outer surface of the firestop ring so as to be able to be at least partially encapsulated by, or at least partially penetrated by, liquid concrete, and wherein the retainer has a deflectable inner portion that is adjacent to at least a portion of the inner surface of the firestop ring.