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The Lighter Leash (tm) is a real, currently existing product
(see link). It's basically a keychain device consisting of a
springloaded pulley cord. There are other brands of this
kind of device, but 'Lighter Leash' makes a handy term for
it. They get used in workplaces all over the country to
things like RFID badges, keys, and, in my case, a
rubber stamp with my name and employee number that
goes on the paperwork for every part that I perform any
amount of work on. The lighter leashes are issued to us
and we are expected to keep our stamps attached to our
person thusly to ensure they don't get lost.
What happens occasionally is that the leash tether breaks
and the stamp gets lost. If you keep your lighter leash
attached to a keyring secured to a belt loop like many
people do, it gets snagged frequently in couch cushions,
seat belts, doors, and other places (and when you don't
realize it's snagged and it suddenly gets loose and zings
back and snaps you in the ass, it can hurt!) Though it is
recognized that the breakage and subsequent loss
happens occasionally and is unavoidable, it's still kind of
a big deal when it does.
It occurs to me that an RFID chip in whatever is attached
to the lighter leash and a scanner on the pulley unit could
trigger a beeping alarm if the pulley has no tension on it
(meaning it ought to be in it's fully retracted position) and
the device needing to be secured is not detected. This
should let you know right away if it has broken so you can
retrieve your device from wherever it landed. That is all.
[21 Quest, Jul 07 2014]
||//Though it is recognized that the breakage and
subsequent loss happens occasionally and is
unavoidable, it's still kind of a big deal when it
|| I think that if you work in a job where breaking
the leash on your rubber stamp is kind of a big
deal, it may be time to think about alternative
|| Simpler solution, though: a fine wire embedded
in the relevant parts of the leash, so that when it
breaks an alarm sounds.
||M'lord, you make a good point, but we work in an environment where such things can come in useful.
|| I worked in a shop once where the external auditor, in his sweep of the building, saw that many employees had their stamps on their keychains, which they left in the locks of their toolboxes.
|| He simply collected them as he went by, and when he met with senior management turned the lot over to them, and suggested that perhaps improvement in control of stamps was merited.
||As these things typically have some pretension in the clockspring, an even simpler solution would be to have the spring activate a contact switch when it was loosened beyond the shortest theoretical point.
|| Here in Detroit we call them 'yo-yo's.
||off-hand wrist-holster, or mounted on top of a baseball cap brim, if you can't simply get (or retrofit) one with a stronger tether.
||" off-hand wrist-holster " - now there's a method of open carry I've not seen before...