Hendry Mechanical Works

Surefire, LLC

Luc Pierre Benoit

James J Keenan

Michael T Parker

Howard M Ham, Jr

John Wallace Matthews

Paul Y Kim

Electric arc monitoring is effected by exploiting the discovery that electric arcs are fractal phenomena in that all essential information that signifies &ldquo;arc&rdquo; is contained in each fractal subset. These fractal subsets are logarithmically distributed over the arc spectrum. Monitoring of arcs is most advantageously effected on a fractal subset ( ) of low logarithmic order where the amplitude is higher pursuant to the 1/f characteristic of electric arcs, where cross-induction among neighboring circuit is lower, and where travel between the arc ( ) and the arc signature pickup ( ) is longer than at the high frequencies customary for electric arc detection. Fractal subset transformation ( ) reduces the danger of false alarms. Arc signature portions may be processed in out of phase paths ( ) or treated as modulated carriers ( ) for monitoring. Aircraft may be equipped with spark monitoring systems ( ) that record ( ) occurence of dangerous sparking at different locations ( ) aboard the aircraft ( ).

Electric arc monitoring systems

Electric arc monitoring is effected by exploiting the discovery that electric arcs are fractal phenomena in that all essential information that signifies an &ldquo;arc&rdquo; is contained in each fractal subset. The fractal subsets are logarithmically distributed over the arc spectrum. Monitoring of arcs is most advantageously effected on a fractal subset of low logarithmic order where the amplitude is higher pursuant to the 1/f characteristic of electric arcs, where cross-induction among neighboring circuits is lower, and where travel between the arc and the arc signature pickup is longer that at the high frequency customary for electric arc detection. Fractal subset information reduces the danger of false alarms. Arc signature portions may be processed in out of phase paths or treated as modulated carriers for monitoring.

A battery powered portable electric light source has multiple sets of spare batteries contained in its battery compartment, whereby mixups between exhausted and fresh batteries are effectively avoided. A flashlight having a light output stronger than the mentioned electric light source is provided for use of batteries from the battery compartment of the mentioned portable container, and batteries are exchanged between that portable container and that flashlight. Apparatus for providing electric light have an electric light source requiring for energization a pair of batteries in series and a portable container for several pairs of these batteries connected each in series at a bottom of that container. Each of these several pairs of batteries includes a first battery having a first positive terminal and an opposite first negative terminal, and a second battery having a second positive terminal connected to that first negative terminal and an opposite second negative terminal. First positive terminals of first batteries of the several pairs of batteries and second negative terminals of second batteries of the several pairs of batteries are in substantially the same plane for selective application of the electric light source thereto for energization therefrom. A socket for the electric light source includes terminals corresponding to adjacent terminals of any one of the several pairs of batteries in that container. Unspent batteries in film packs may be used to energize light sources.

Growing community of inventors

La Cañada Flintridge, CA, United States of America

Luc Pierre Benoit