US Patent 7775005 Vent pipe covering system

A vent pipe covering system for efficiently forming a seal between a vent pipe structure and a supporting structure. The vent pipe covering system generally includes a base, a body extending from the base and a coupler extending from the body opposite the base. The base includes a first opening and the body includes a passageway, wherein the passageway longitudinally extends through the body and interconnects with the first opening. The coupler includes a retaining cavity to extend over an outermost end of a pipe extending through the passageway and the first opening, wherein the body and passageway may expand and retract to accommodate various length pipes via an expandable portion of the body.