I am in a project at my company in which we have reached an impasse
with finding contacts for our project. The device is a hand held
instrument with integral battery (IE rechargeable).  It is a SEALED
unit and the battery is NOT user removable or replaceable (this is a
requirement to meet government regulations so it's immutable).  This
means the device requires case contacts AND also require contacts for
charging the unit. It will be operated in a dirty and dusty environment
therefore the contacts need to somehow be self cleaning etc.  The
'vision' that's been tossed about is to chuck the instrument into a
unit with spring contacts that wipe (and therefore self clean).
Contacts need to be gold for low contact pressure and have to have
approximately 2.5mm to 5mm of travel (the more the better because the
contacts are recessed again government regulated ) for the charging
unit.

I've seen similar contacts used on wireless mice etc. However there
travel is quite limited.  Anyone have a clue?  We have a clue as to
what we want we just don't want to become experts at making contacts
(we already have more work than we can get done in time as it is) and
have someone make 'our' design.  It would be nice if some one had
expertise in this field so we can get the contacts made or off the
shelf (preferably the latter).

Stephen


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