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:
Jun. 15, 1993
Filed:
Apr. 15, 1991
Applicant:
Inventor:
Emil S Wuertz, Madison, CT (US);
Assignee:
Hubbell Incorporated, Orange, CT (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02G / ;
U.S. Cl.
CPC ...
174 48 ; 169 48 ;
Abstract
A poke-through fire barrier with knock-out fire barrier openings. The structure includes a fire barrier element which is constituted from an intumescent material in the shape of a disc member which is adapted to be installed in a passage or opening formed in a fire-rated floor, and wherein the intumescent disc member incorporates one or more knock-outs for the passage therethrough of insulated conductors or wires.
Wuertz, Emil. (1993). Poke-through fire barrier structure with knock-out openings (U.S. Patent No. 5220131). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5220131
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile