Patent ID: 7550669

Claim:
An adjustment facilitating means for interposition between an electrical service box on a wall of a building and an underground electrical service line comprising: (a) a first elongate hollow body formed of an approved polymeric material for use over electric service lines and of sufficient internal volume and shape to accommodate a substantial portion of a section of electrical conduit; (b) a fitting on a first end of said hollow body adapted for connection to an electrical service box with sufficient internal space for the passage of at least one electric service line; (c) an opening at a second end of the first elongate hollow body through which a second elongate hollow body is longitudinally slideable, and in which a second elongate hollow body section of electrical conduit can extend; (d) the second elongate hollow body having reduced external dimensions compared to the internal dimensions of the first elongate hollow body, (e) a circumferential resilient sealing ring within the opening in the second end of the first elongate hollow body adapted to closely surround the second elongate hollow body slideable through the opening in the second end of the first elongate hollow body and forming a seal between the two through which the second elongate hollow body may slide both during installation and in case of tension caused by earth movement.