Electronic proximity switch

Details Electronic proximity switch Electronic proximity switch

2006-04-26

2008-07-01

Tweel, Jr., John (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S562000

Reexamination Certificate

active

07394368

ABSTRACT:
An electronic proximity switch employs two oscillators coupled through two electrical paths, one associated with an antenna serving as a proximity switch sensor. Absorption by an object near the antenna changes the coupling between the oscillators producing a dramatic phase shift that may be detected and used for switching purposes.

REFERENCES:
patent: 4016490 (1977-04-01), Weckenmann et al.
patent: 5247281 (1993-09-01), Facon et al.
patent: 5802479 (1998-09-01), Kithil et al.
patent: 6445294 (2002-09-01), McDonnell et al.
patent: 6724324 (2004-04-01), Lambert
patent: 6995670 (2006-02-01), Wadlow et al.
patent: 7187282 (2007-03-01), Fergusson
patent: 2002/0154039 (2002-10-01), Lambert et al.
patent: 2003/0216817 (2003-11-01), Pudnev
patent: 2006/0055585 (2006-03-01), Nagasaku et al.
patent: 2006/0208854 (2006-09-01), Baumgartner et al.
patent: 2006/0250143 (2006-11-01), Moon et al.
patent: 2007/0194878 (2007-08-01), Touge et al.

Affiliated with

Also associated with

Rating

Electronic proximity switch does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3965467