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:
Jul. 01, 1986
Filed:
Jan. 09, 1981
Alan E Seddon, Rainford, GB;
Joseph Littler, Liverpool, GB;
BICC Public Limited Company, London, GB;
Abstract
In an overhead electric traction system, an overhead contact wire is enclosed throughout its length within an elongate protective cover of resilient electrically insulating material. The cover is secured to the contact wire, is symmetrical about a longitudinally extending vertical plane passing through the axis of the contact wire and includes a pair of transversely extending base walls which underlie and are spaced from the contact wire and abut in the vertical plane. When engaged by a transversely extending elongate current collector carried by a travelling vehicle, the base walls are deflected upwardly and outwardly away from one another to expose the running surface of the contact wire and permit the current collector to effect electrical contact with and collect current from the contact wire; after passage of the current collector, the base walls return to their original undeflected positions so that the contact wire is again enclosed within the cover.