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IC
abb.
interchangeable core
ICBO
abb. International
Conference of Building Officials
ignition
key release
n. a button or
other actuator which must be pushed before a vehicle's
ignition key may be turned to the withdrawal position
ignition
lock
n. the lock
assembly associated with a vehicle's engine on-off switch
and starter
ignition puller
n. a tool for removing an ignition
cylinder by pulling outward on it
ILA
abb. Institutional Locksmiths Association
ILCP
abb. "Institutional Locksmith Certification
Program"; a locksmith certification program administered by ILA
impression
n. 1. the mark made
by a tumbler on its key cut 2. v. to fit a key by the
impression technique
impression
technique
n. a means of
fitting a key directly to a locked cylinder by
manipulating a blank in the keyway and cutting the blank
where the tumblers have made marks
impressioning
tool
n. 1. a tool designed
to hold a key blank while making a key by the impression
method, 2. a tool which fits into a keyway and holds a material
that accepts impression marks easily
inactive case
n. the exit device case mounted on the stile opposite the lock stile
inactive
door
n. the door of a pair,
which is secondary in usage and is normally locked
by surface or flush bolts
incidental
master key
n. a key cut to an
unplanned shear line created when the cylinder is
combinated to the top master key and a change key
increment
n. a usually
uniform increase or decrease in the successive depths of
a key cut which must be matched by a corresponding change
in the tumblers
independent custody
1. n. a function of a locking mechanism that allows
separate access by either of two different people, each with a different
type method of opening and closing the lock, 2. adj. pertaining to such a
function
index
(of a combination lock dial)
n. the mark outside
the dial ring of a combination lock used as a reference
point
indicator
n. a device which
provides visual evidence that a deadbolt is extended or
that a lock is in the shut out mode
individual
key
n. an operating key
for a lock or cylinder which is not part of a keying
system, see also "change key" #1
inner ring
n. that part of a mesh change or key change combination wheel that makes
direct contact with the wheel post
integral lockset
n. a lockset that combines two or more different mounting
or operational methods, typically key-in-knob and mortise
interchangeable
core
n. a key removable
core which can be used in all or most of the core
manufacturer's product line. No tools (other than the
control key) are required for removal of the core.
interconnected
lockset
n. a lockset whose
trim provides a means of simultaneous retraction of two
or more bolts which may also be operated independently
interlocking
bolt
n. a bolt which
interlocks with its strike when fully engaged
interlocking
pin tumbler
n. a type of pin
tumbler which is designed to be linked together with all
other tumblers in its chamber when the cylinder plug is
in the locked position
intermittent
duty
adj. of or
pertaining to an electric strike or lock not designed to
be energized for extended periods of time
internal relocking device
n. a device inside a safe lock case that
prevents the lock bolt from being retracted after attack
IP
abb. internet protocol
IR
abb. Infrared
IRD
abb. internal relocking device
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