Charles R Eminhizer from 10082 Mesa Madera Dr, San Diego, CA 92131

Name / Title

Company / Classification

Phones & Addresses

Charles R Eminhizer
Director, Director , Secretary, Treasurer

FIRE PROTECTION TECHNOLOGIES, INC
Business Services

10082 Mesa Madera Dr, San Diego, CA 92131
7 Tender Violet Pl, Spring, TX 77381

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Author
Charles R. Eminhizer

ISBN #
0883183773

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Location:

San Diego, CA

Industry:

Research

Fire Protection Of Openings In Fire Rated Barriers Around Metallic Penetrants And Cables Using Only External Rigid Seals
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US Patent:

20050150677, Jul 14, 2005
Filed:

Dec 2, 2004
Appl. No.:

11/001875
Inventors:

Adolf Hochstim - Pasadena CA, US
Charles Eminhizer - San Diego CA, US
Donald Graumann - Cardiff CA, US
International Classification:

H01B007/00
US Classification:

17406500G
Abstract:

A method is invented of sealing through penetrations in fire rated barriers (walls or floors/ceilings), caused by metallic pipes, metallic conduits, metallic cable trays with cables inside, cables, metallic ducts and electric busways, by placing an external firestop seal comprising of cementitious liquid material, which upon curing becomes rigid and heat absorbing. In order to obtain the same fire rating with the same rigid, cementitious fire stop material for an external seal as compared with an internal seal, the total depth of the external seal, on both sides of the fire barrier, was determined to be at most the same as the depth of the internal seal.