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:
Aug. 15, 1995
Filed:
Sep. 16, 1993
William G Wiedefeld, Clermont, FL (US);
Michael H Peterson, Glendale, CA (US);
William F Cote, Windermere, FL (US);
The Walt Disney Company, Burbank, CA (US);
Abstract
An electronic time fuse for controlling and initiating the explosion of an explosive is provided. The fuse comprises a timing circuit, an energy storage means, and a explosion initiation means. The fuse is initially connected through a two-wire interface to a local control unit (LCU). The LCU tests the integrity of the fuse, charges the energy storage means, measures the clock accuracy of the fuse, compensates for any inaccuracy of the fuse clock, loads timing information into the fuse, and commands the fuse to begin a timing sequence toward explosion. The fuse responds to LCU commands. The fuse ignores signals present on the two-wire interface for a period of time after the command to begin the timing sequence toward explosion is given. The fuse also monitors the status of the two-wire interface and the signals present on it and resets the fuse to an inert state if any irregularities are detected.