IP Library Granted Patent US 7,538,275
Granted Patent B2
US 7,538,275 · App. 11/052,182 · Granted May 26, 2009

Fire resistant cable

Assignee: Rockbestos Surprenant Cable Corp.
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Quick Facts
Patent No.
US 7,538,275
App. No.
11/052,182
Granted
May 26, 2009
Kind
B2
Abstract

A fire resistant electrical cable includes a conductor. Substantially applied around the conductor is an inorganic braid. A ceramifiable polymer is substantially applied over the jacket. The fire resistant electrical cable also includes a retaining jacket substantially applied over the ceramifiable polymer. Multiple fire resistant electrical cables may be combined within a single grouping jacket to provide multi-phase conductance.

Claims (13)

1. A fire resistant electrical cable comprising:

a conductor;

an inorganic braid substantially applied over the conductor;

a ceramifiable silicon rubber substantially applied over the inorganic braid; and

a nonmetallic retaining jacket substantially applied over the inorganic braid.

2. The cable of claim 1 wherein the conductor comprises at least one nickel coated copper wire.

3. The cable of claim 1 wherein the inorganic braid further comprises a beat resistant braid.

4. The cable of claim 1 , further comprising air pockets formed with the inorganic braid and enclosed by the ceramifiable silicon rubber.

5. The cable of claim 1 wherein the ceramifiable silicon rubber will begin to ceramify at a temperature between 550 degrees Fahrenheit and 950 degrees Fahrenheit.

6. The cable of claim 1 wherein the retaining jacket further comprises an electrically insulative polymer.

7. The cable of claim 1 wherein the retaining jacket is heat resistant such that integrity of the retaining jacket is maintained up to 900 degrees Fahrenheit.

8. The cable of claim 1 wherein the conductor is electrically conductive and has a melting point of approximately at least 2000 degrees Fahrenheit.

9. The cable of claim 1 wherein the conductor further comprises oxygen-free high-conductivity copper.

Assignments (4)
CHANGE OF NAME Recorded Feb 18, 2021
From: ROCKBESTOS-SURPRENANT CABLE CORP.
To: RSCC WIRE & CABLE, INC.
Reel/Frame 055331/0944 →
CHANGE OF NAME Recorded Feb 18, 2021
From: RSCC WIRE & CABLE, INC.
To: RSCC WIRE & CABLE LLC
Reel/Frame 055332/0093 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 16, 2005
From: KONNIK, ROBERT; MENNONE, MICHAEL
To: ROCKBESTOS SURPRENANT CABLE CORP.
Reel/Frame 015911/0284 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 23, 2005
From: KONNIK, ROBERT; MENNONE, MICHAEL
To: ROCKBESTOS SUPRENANT CABLE CORP.
Reel/Frame 015773/0286 →
Continuity (1)
Related Publication 20060175075A1 · Aug 10, 2006