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:
Apr. 23, 1985
Filed:
Aug. 20, 1982
Applicant:
Inventor:
Dennis Gill, Lancashire, GB;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
H01B / ; H01C / ;
U.S. Cl.
CPC ...
156 48 ; 29614 ; 156 54 ; 1741 / ; 174118 ; 219544 ; 338238 ;
Abstract
In a mineral insulated electric cable the powdered insulating material is impregnated with a quantity of a hydrophobic material, for example a silicone, which has been introduced into the powder in liquid form. The added hydrophobic material serves as a barrier against the ingress of moisture, and liquid dimethylpolysiloxane has been found particularly effective, the pressure of even a small quantity of this preventing any significant degree of moisture penetration into the cable.