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:
Oct. 27, 1981
Filed:
Feb. 07, 1980
Applicant:
Inventors:
Ottmar Leuchs, Hannover-Bothfeld, DE;
Georg Maltz, Burgdorf, DE;
Assignee:
Kabel-und Metallwerke Gutehoffnungshuette A.G., Hanover, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01B / ; H01B / ;
U.S. Cl.
CPC ...
1741 / ; 1741 / ; 1741 / ;
Abstract
An insulated cable has a hermetically enclosed sheath. Between the sheath and the insulation of the cable is a filler of a thermoplastic material. When the cable is heated (e.g. a localized fire) gases and acids that are given off by the insulation are absorbed by the filler which also expands resulting in a structural blockage to the longitudinal flow of the acids and gases.