Continuity tester using a brush tipped probe

Continuity testing apparatus for identifying continuity between a first contact point and a second contact point, which comprises:

• a single point electrically conductive first probe;
• a second probe comprising a plurality of electrically conductive fibers, said fibers contacting a region containing a plurality of contact points;
• a single point third probe electrically connected to said second probe in parallel therewith;
• electrical means connected between said first and combination of second and third probes for determining whether electrical continuity exists between said first probe and either of said second and third probes;
• and
• indicating means for producing a human recognizable signal indicating existence of said electrical continuity;
• whereby a region containing a location in continuity with said first contact point is determined with said second probe and the precise location is determined with said third probe.

A method of identifying continuity between a first contact point and a region containing a second contact point, which comprises:

• providing a first single point electrically conductive probe, a second probe comprising a plurality of closely spaced, flexible, electrically conductive fibers and a third probe having a single point connected in parallel with said second probe;
• providing electrical signal means for indicating existence of electrical continuity between said first probe and either of said second and third probes;
• contacting a selected first contact point in an electrical circuit with said first probe,
• moving the fibers of said second probe across said circuit until said signal means indicates continuity between said first contact point and a contact point within the region covered by said plurality of flexible fibers;
• removing said second probe from contact with said circuit;
• and
• touching said third probe to various locations within said region until a precise electrical continuity location is signaled.