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US 4,053,880 AGranted
Keying apparatus
OwnerJohn P. Harmoninventor
Life of this patent
Estimating the term…
Abstract
A keying apparatus utilizing a plurality of key pins arranged in a predetermined configuration which may be preset to accept a coded pattern that may be used to set keyguns.
Claims2
A code keying apparatus comprising in combination:
- means for holding a plurality of key pins, said holding means maintaining said plurality of key pins in substantially parallel configuration to each said holding means allowing said plurality of key pins a degree of movement, said holding means comprising in combination,
- a plurality of pin guide units having a plurality of pin guide holes drilled therein, said plurality of pin guide holes being aligned throughout said plurality of pin guide units, said plurality of pin guide units being arranged in parallel with respect to each other,
- means for locking said plurality of key pins in a plurality of pin positions, said plurality of variable pin positions representing a predetermined code, said predetermined code being locked in place by said locking means, said locking means comprising in combination:
- a plurality of pin locking bars having friction pads mounted thereto, said friction pads being utilized to contact and hold in place said plurality of key pins, said plurality of pin locking bars being fastened together and to said support base by a plurality of bolts and nuts, said plurality of pin locking bars being operatively fastened together so as to allow an increase or decrease of pressure upon said key pins, and
- a support base having said holding means and said locking means mounted thereto.
2 more elements
Dependencies are inferred from the claim text.