Abstract: This invention provides a guiding support for conduit, pipe or wire that is buried beneath a floor and that extends up into an adjoining wall. It speeds and facilitates installation of the conduit by preventing kinking of the conduit as it is threaded through a ninety degree turn. It will keep the conduit in position while a concrete floor is being poured. It matches the manifold of floor and of wall spacing in order to be easily fixed in place. The speed of installation of plumbing, electrical, and other pipes and cords through conduit or conduit can be important in construction jobs, especially where such pieces of work may be on the critical path before other jobs can be started or completed.

Abstract: The invention relates to an improved system for securing electrical conduit into a junction box. The invention provides a cylindrical insert that fits into one of a plurality of tubular projections on the junction box. The insert is slightly longer than the tubular projection and has a diameter sized to slidably fit within the tubular projection. An outer flanged rim on one end of the insert prevents it sliding further into the tubular projection. A split flanged rim on the other end allows the other end to flex together to allow insertion of the insert into the tubular projection. A split inner rim operates in conjunction with a disposable end plug having a conical face that allows insertion of a corrugated electrical conduit to flex apart the other end when it protrudes from an inner end of the tubular projection. The split inner rim snaps into a groove between raised rings of the corrugated electrical conduit and secures it against withdrawal by a pulling force.

Abstract: A prefabricated junction box and lid for use in the floors, walls and ceilings of a building. The junction box has tubular projections extending from an exterior sidewall and sealed by removable knockouts. When a knockout is removed, an annular ring extends into an interior of the tubular projection so as to retain corrugated electrical conduit inserted therethrough. The junction box lid includes locking tabs aligned with each tubular projection which substantially improve the capacity of the box to retain electrical conduit. The annular ring and corresponding locking tab, in combination, are operative to engage against an outer surface of the corrugated electrical conduit so as to lock the conduit.