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:
Dec. 29, 1992
Filed:
Apr. 18, 1991
Applicant:
Inventor:
George Murota, Tokyo, JP;
Assignee:
The Furukawa Electric Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E04B / ;
U.S. Cl.
CPC ...
52232 ; 52221 ;
Abstract
A fire protecting structure of a channel portion of a plastic piping in a fire partition wherein the plastic piping is inserted in a through hole formed in the fire partition and the through hole is filled with a refractory material, wherein a support means having a region, which makes a refractory material to come in contact with the outer surface of the plastic piping, and portions for supporting an intumescent material, the support means being arranged around the plastic piping and the refractory material being filled in the region of the support means to come in contact with the outer surface of the plastic piping.