Key box
First Claim
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1. In a key box,a case,a drawer slidable into the case,first locking means within the case for locking the drawer against removal,and second locking means exposed at the exterior of the case for actuating the first locking means and for pushing said drawer outwardly,said second locking means having a lost motion action to facilitate actuation of the first lock means prior to exerting a pushing force against said drawer.
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Abstract
A key box in which an inaccessible interior latch secures a drawer in place. An exposed lock can be operated to release the latch. A tumbler lock has forward and rearward tumbler receiving notches of different depths to make picking of the lock more difficult.
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Citations
5 Claims
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1. In a key box,
a case, a drawer slidable into the case, first locking means within the case for locking the drawer against removal, and second locking means exposed at the exterior of the case for actuating the first locking means and for pushing said drawer outwardly, said second locking means having a lost motion action to facilitate actuation of the first lock means prior to exerting a pushing force against said drawer.
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4. A lock having a housing means having an axis,
a barrel turnable in said housing means formed with axially extending radial slots, tumblers axially slidable in said slots, said housing means providing a set of notches to receive ends of said tumblers in extreme positions of movement of said tumblers, said notches being of different depths.
Specification