Jack and test plug

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Using portable test set

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

339183, 339 17LC, 379 26, 324 73PC, H04M 124

Patent

active

046509330

ABSTRACT:
A printed circuit board has two contact areas on each surface near one end. The board is sandwiched between two halves of a shell to form a plug in such a way that the contact areas are exposed. The contact areas on one surface are nearer the exposed end than the contact areas on the other. The tip and ring conductors of a pair of wires in a test cord are connected, respectively, with the two contact areas which are nearer the exposed end. A keeper spring which is connected to the shield of the jumper cable, the ground potential, insures that the plug will be retained within a jack into which the plug is inserted by engaging a detent. The detent is connected to ground potential. The jack has two long electrical contacts and two short electrical contacts. The long electrical contacts engage the two contact areas which are farther away from the exposed end and the two short electrical contacts engage the nearer contact areas. A circuit housed within the plug insures that when the plug is inserted within a jack, a tracing lamp associated with the jack will flicker for a predetermined period.

REFERENCES:
patent: 3020510 (1962-02-01), Kuch
patent: 3348190 (1967-10-01), Hartman et al.
patent: 3363223 (1968-01-01), Hardesty et al.
patent: 3369214 (1968-02-01), Krumreich et al.
patent: 4092587 (1978-05-01), Selkow, Jr.
patent: 4288140 (1981-09-01), Griffith et al.
patent: 4298237 (1981-11-01), Griffith et al.
patent: 4364625 (1982-12-01), Baker et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Jack and test plug does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Jack and test plug, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Jack and test plug will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1789495

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.