The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 16, 1991
Filed:
Feb. 20, 1990
Myron G Bloom, Santa Ana, CA (US);
Masco Building Products Corp., Taylor, MI (US);
Abstract
The present invention discloses a poke-through connector assembly which may be assembled in an aperture within a concrete floor from only one side thereof. The connector includes a molded basket of electrical and thermal insulating material having an upper surface joined to a lower surface by integral columns. A flange extending from the upper surface prevents the connector from passing through the floor aperture, while a spring clip attached to the lower surface of the basket prevents the withdrawal of the connector. An electrical conduit is attached to the lower surface of the basket by the spring clip. Intumescent material placed within the basket expands to fill the aperture within the floor when a fire on the lower surface of the floor heats the connector. The conduction of heat from the fire through the connection is reduced because the insulating basket provides no metal conductive path from the electrical conduit and the spring clip to the upper surface of the basket. Once the basket of the connector fails, the spring clip prevents the connector from falling through the floor aperture, thus maintaining the fire rating of the connector within the floor.