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. 10, 1994
Filed:
Dec. 21, 1992
Roman Kruchowy, Somis, CA (US);
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
An apparatus for measuring the length of fiber optic cable being deployed om a winch to an underwater environment. The cable deployment measuring apparatus of the present invention comprises a constant current generator for generating a direct current, a resistor array having a plurality of series connected resistors and a plurality of trip wires with one of the trip wires being connected across each of the resistors. The trip wires which function as short circuits are also attached to the cable at predetermined locations along the length of the cable. When the fiber optic cable is being deployed, each trip wire will break when the location at which the trip wire is positioned is unwound from the winch for deployment in the underwater environment. This, in turn, will cause flow through the resistor array with a resulting voltage drop across the array. A digital volt meter may, for example, be used to measure the voltage drop across the array with the voltage reading provided by the volt meter being indicative of the length of fiber optic cable already deployed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile