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:
May. 07, 1985
Filed:
Jan. 16, 1984
Burton T MacKenzie, Lawrence, KS (US);
TRW Inc., Cleveland, OH (US);
Abstract
A low profile electrical cable (10) suitable for use in an oil well where a high temperature corrosive atmosphere is present. The cable is comprised of a plurality of conductors (12) wherein each conductor is insulated by wrapping it in two heat-sealed layers (14) in an insulating material such as a polyimide plastic. The insulation layers around each conductor are then jacketed by an extruder layer (16) of a material which is mechanically and chemically stable to at least 400.degree. F. The insulated and jacketed conductors are disposed in a side-by-side parallel relationship and wrapped in a metal armor (20) such as a nickel-copper alloy. The physical properties of the insulating and jacketing materials allow very thin layers to be used for producing a cable which is smaller in overall dimensions than prior cables of comparable electrical capacity. Optionally, a braid (18) may be included around the jacket (16) of each conductor to enhance the overall strength characteristics of the cable.