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. 09, 1989
Filed:
Dec. 15, 1986
William Owen, Canyon Lake, CA (US);
Robert Bell, Hawthorne, CA (US);
Douglas Chase, Redondo Beach, CA (US);
Leonard Briese, Rancho, CA (US);
Wyle Laboratories, El Segundo, CA (US);
Abstract
An apparatus is provided for use at an airport for drawing in and paying out an electric cable, which reliably grips the cable even when it is covered with a slippery anti-freeze fluid used at airports. The apparatus includes a motor-driven traction wheel against which the cable is pressed, with the periphery of the wheel being concave and having a radius of curvature about the same as the cable so the cable can closely nest in it. The wheel has closely spaced treads that press through fluid on the cable to grip it, and has a circumferentially extending groove through which fluid can drain. The cable is pressed against the wheel by rollers that have concave peripheries to also closely surround the cable.