A probe pin for inspection composing a unit to inspect a printed circuit is formed with a conductive metallic tube into which a plunger is inserted with a spring. The plunger is slidably projected from the top end of the conductive metallic tube and a plurality of hollow salients are formed symmetrically...http://www.google.es/patents/US5499933?utm_source=gb-gplus-sharePatente US5499933 - Probe pins for inspection and slip-on sockets thereof
Probe pins for inspection and slip-on sockets thereof
