US 4,059,321 AGranted

Pull-out receptacle for floor ducts

AssigneeCrest Industries, Inc.

InventorsHarry R. Rasmussen, Kenneth D. Topel

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Abstract

After discussion of prior art electrical terminations for floor ducts in which a plurality of electrical cables are located, a pull-out receptacle for such floor ducts is disclosed which includes a sleeve configured to be received in an aperture extending between a floor surface and the interior of the floor duct, with the sleeve having a circumferential flange adapted to overlie those portions of the floor surface adjacent to the floor aperture. A recess is provided in a top surface of the sleeve, and an aperture extends from that recess through the sleeve. A closure member is provided which includes a core configured to be received within the sleeve aperture with a reciprocative, sliding fit, and an integral cap configured to be received in the recess. A first passageway is provided in the core, and a second passageway in the cap, the second passageway communicating with the first passageway for allowing electrical cables to be pulled therethrough. If desired, an electrical connector may be located in the first passageway so that telephone instruments or the like may be easily connected and disconnected when the closure member is withdrawn from the sleeve.

Claims27

Dependent claims

A pull-out receptacle for floor ducts, said receptacle being adapted to be mounted in a floor aperture extending from a floor surface to and into the floor duct and being adapted when so mounted to permit access to be made to the floor duct and to electrical cables therein from the floor surface, said receptacle comprising:

a. sleeve means including an upper flange for overlying portions of the floor surface which are adjacent to the floor aperture;
a lower wall means integral with and dependent from said flange and configured to be received within the floor aperture;
a first recess being defined in said flange and extending inwardly into said sleeve means;
a first aperture having a cross-sectional area which is less than the cross-sectional area of said first recess and being defined in said flange and in said wall means and extending through said sleeve means, said first aperture communicating at one end thereof with said first recess;
and, means for securing said sleeve means to the floor when mounted in the floor aperture;
and
b. a closure member including a cap configured to be received in said first recess of said sleeve means;
a core, integral with and dependent from said cap, which is configured to be received in said first aperture of said sleeve means with a reciprocative, sliding fit;
a first passageway for electrical cables extending through said core and a second passageway for electrical cables extending through said cap and communicating with said first passageway.

6 more elements

Dependencies are inferred from the claim text.