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:
Jan. 29, 1991
Filed:
May. 15, 1989
Robert A Boenning, Timonium, MD (US);
Harvey H White, Jr, Hampstead, MD (US);
Westinghouse Electric Corp., Pittsburgh, PA (US);
Abstract
An apparatus for detecting excessive chafing of a cable arrangement against an electrically grounded structure includes a layer of semiconductive material positioned in surrounding relation with an elongated member such as an electrical cable, tube or hose. A layer of electrically insulating material surrounds the layer of semiconductive material. A detector circuit is electrically connected with a reference end portion of the semiconductive layer. The detector circuit is operable to detect at least momentary contact between the layer of semiconductive material and an electrically grounded structure due to erosion of the layer of electrically insulating material surrounding the semiconductive layer caused by excessive chafing of the layer of electrically insulating material against the ground structure. The detector circuit is further operable to provide an indication of the distance measured along the layer of semiconductive material between the reference end portion of the semiconductive layer and the location at which the layer of semiconductive material has at least momentarily contacted the electrically grounded structure.