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AssigneeSquare D Company
InventorsJames C. Carroll, Johnny R. Curry, George N. Jorgensen, Frank D. King, Gilbert A. McGoldrick
Estimating the term…
The fitting is mountable on a cellular steel floor or deck prior to pouring of the concrete of a completed floor and comprises a separable flat base plate, a box-like housing, and a cover plate. Two self-grommeted openings in the base plate are axially aligned with respective openings of substantially equal size leading to adjacent cells of the deck, and a tab on the base plate at one of the grommeted openings interlocks with the deck to hold the base plate in position. Horizontally directed slots formed in the base plate along one longitudinal edge thereof cooperate selectively with tabs on the lower longitudinal edges of the housing to lock the housing on the base plate selectively in either of two positions. Screws or rivets may be used as additional fastening means for the base plate and housing. A longitudinally asymmetrical opening in an upper wall of the housing is closed by a filler cap prior to pouring the concrete and, after the pour, the filler cap is removed to permit the cover plate, also termed a flush floor fitting, to be installed over the opening in the upper wall. A closure member of the cover plate is turnable to expose openings for wires leading from the housing of the service fitting.
A service fitting for use with a concrete-covered cellular steel floor to provide protected access to at least one of two adjacent cells of the floor and comprising a base plate having a pair of spaced openings, means for securing the base plate to the steel floor with the openings in the base plate radially aligned with respective openings in respective top walls of adjacent cells of the floor, a box-like housing having side and top walls, interlocking means on the base plate and housing securing the housing to the base plate, an opening in the top wall of the housing, and closure means secured to the housing for selectively closing the opening in the top wall and providing access therethrough.
A service fitting for use with a concrete-covered cellular steel floor to provide protected access to at least one of two adjacent cells of the floor and comprising a box-like housing having side and top walls, means for securing the housing to the floor, an opening in the top wall of the housing, and closure means closing the opening in the top wall, the closure means comprising a retainer secured to the housing about the opening and a circular disk rotatably mounted in the retainer for rotation between two positions, the disk having a plurality of cut-out portions as spaced locations about its periphery, and the retainer including shelf portions that block the respective cut-out portions in one position of the disk and do not block the cut-out portions in the other turned position.
A service fitting for use with concrete-covered cellular steel floor to provide protected access to at least one of two adjacent cells of the floor and comprising a base plate having a pair of spaced openings, a tang extending downwardly and outwardly from the peripheral edge of one of the spaced openings in the base plate for securing the base plate to the steel floor with the openings in the base plate radially aligned with respective openings in respective top walls of adjacent cells of the floor, the circumferential edge portion of each of the spaced openings in the base plate being curled downwardly and outwardly providing a smooth inner circumferential surface and an outer circumferential surface, each of the outer circumferential surfaces being sized for snug engagement with the circumferential edge faces of the openings in the top walls of the cells of the floor, a box-like housing having side walls and a top wall, interlocking means comprising at least one horizontally directed slot at an edge portion of the base place and a complementary tang at a lower edge of a side wall of the housing removably received in the slot removably securing the housing to the base plate, an opening in the top wall of the housing, and closure means secured to the housing for selectively closing the opening in the top wall and providing access therethrough, the closure means including a retainer secured to the housing about the opening and a circular disk rotatably mounted in the retainer for rotation between two positions, the disk having openings therein that are blocked by respective barrier portions of the retainer when the disk is in one of the two positions and exposed to the interior of the housing when the disk is in the other turned position to provide said access.
Dependencies are inferred from the claim text.