Tumbler lock code pin and key coding set and method of coding a lock and complementary key

Claim 2

A rotary tumbler lock code pin and key coding set comprising: a means adapted for supporting a rotary tumbler lock to permit access to the lock code pins, indicia means on said support means for identifying the relative positions of the respective code pins, a key means having a barrel portion adapted to be received in the keyway of the lock, said barrel portion having a plurality of circumferentially disposed longitudinally extending key flutes formed in the surface thereof, a plurality of similarly constructed resettable key blades adapted to be adjustably disposed in each of said key flutes, readily removable identifying means adapted to be disposed about said barrel portion and having indicia means formed thereon to identify the respective key flute and associated resettable key blade complementing the respective code pins, the indicia means of said identifying means complementing the indicia means on said support means, gage means adapted for setting the set back position of the respective key blades within their respective key flutes to complement the coding of the respective code pins, and means on said key means for locking said key blades in their respective set back position.

Claim 3

A rotary tumbler lock code pin and key coding set comprising: a means adapted for supporting a rotary tumbler lock to permitaccess to the lock code pins, indicia means on said support means for identifying the relative positions of the respective code pins, a key means having a barrel portion adapted to be received in the keyway of the lock, said barrel portion having a plurality of circumferentially disposed longitudinally extending key flutes formed in the surface thereof, a plurality of similarly constructed resettable key blades adapted to be adjustably disposed in each of said key flutes, indicia means adapted to be disposed about said barrel portion to identify the respective key flute and associated resettable key blade complementing the respective code pins, gage means adapted for setting the set back position of the respective key blades within their respective key flutes to comPlement the coding of the respective code pins, and means on said key means for locking said key blades in their respective set back position, and said gage means comprising: a plate member having a plurality of edge portions, each of said edge portions having a lateral offset shoulder defining a predetermined gage distance by which said key blade can be set back within its key flute.

Claim 4

A rotary tumbler lock code pin and key coding set comprising: a means adapted for supporting a rotary tumbler lock to permitaccess to the lock code pins, indicia means on said support means for identifying the relative positions of the respective code pins, a key means having a barrel portion adapted to be received in the keyway of the lock, said barrel portion having a plurality of circumferentially disposed longitudinally extending key flutes formed in the surface thereof, a plurality of similarly constructed resettable key blades adapted to be adjustably disposed in each of said key flutes, indicia means adapted to be disposed about said barrel portion to identify the respective key flute and associated resettable key blade complementing the respective code pins, gage means adapted for setting the set back position of the respective key blades within their respective key flutes to comPlement the coding of the respective code pins, and means on said key means for locking said key blades in their respective set back position, and said gage means comprising: a plate member having a plurality of edge portions, each of said edge portions having a lateral offset shoulder defining a predetermined gage distance by which said key blade can be set back within its key flute.

Claim 5

The invention as defined in claim 2 wherein said offset shoulders are proported to equal the distance a predetermined code pin is required to be displaced to permit operation of said lock.

Claim 6

The invention as defined in claim 3 wherein said gage plate member has a central cut-out portion to define a wrench opening adapted to complement the locking means of said key to facilitate the tightening and loosening of said blade locking means.

Claim 7

A rotary tumbler lock code pin and key coding set comprising a lock holding fixture, said lock holding fixture having a base member have a top wall with circumscribing depending wall portions for spacing said top wall from a supporting surface, said top wall having an opening therein for accommodating the plug end of a rotary lock, identifying means located on said top wall, said identifying means having indicia circumferentially spaced about said opening for identifying the code pins of a lock, a key means having a barrel portion adapted to be received in the keyway of the lock, said barrel portion having a series of longitudinally extending flutes circumferentially spaced about said barrel portion, a plurality of similarly constructed resettable key blades, said key blades being disposed in said flutes, said flutes being longer than said key blades, removably disposed indicia means adapted to be disposed about said barrel portion for identifying each flute corresponding to the identified code pins of said lock, a gage means adapted to adjust the set back of each of said key blades within their respective flutes to define code pin receiving notch on said barrel, said gage means including a plate member having a plurality of edge portions, a laterally extending shoulder formed on each edge portion, each shoulder being equal to the distance a predetermined code pin is required to be displaced to permit operation of said lock, and said key having a locking collar thereon for locking said key blades in the adjusted set back position, and said gage plate member having a cut-out portion to define a wrench opening to complement said locking collar to facilitate tightening and loosening of said collar about said key blades.

Claim 8

A rotary tumbler lock code pin and key coding set comprising a lock holding fixture, said lock holding fixture having a base member have a top wall with circumscribing depending wall portions for spacing said top wall from a supporting surface, said top wall having an opening therein for accommodating the plug end of a rotary lock, identifying means located on said top wall, said identifying means having indicia circumferentially spaced about said opening for identifying the code pins of a lock, a key means having a barrel portion adapted to be received in the keyway of the lock, said barrel portion having a series of longitudinally extending flutes circumferentially spaced about said barrel portion, a plurality of similarly constructed resettable key blades, said key blades being disposed in said flutes, said flutes being longer than said key blades, removably disposed indicia means adapted to be disposed about said barrel portion for identifying each flute corresponding to the identified code pins of said lock, a gage means adapted to adjust the set back of each of said key blades within their respective flutes to define code pin receiving notch on said barrel, said gage means including a plate member having a plurality of edge portions, a laterally extending shoulder formed on each edge portion, each shoulder being equal to the distance a predetermined code pin is required to be displaced to permit operation of said lock, and said key having a locking collar thereon for locking said key blades in the adjusted set back position, and said gage plate member having a cut-out portion to define a wrench opening to complement said locking collar to facilitate tightening and loosening of said collar about said key blades.

Claim 9

An improved resettable key comprising: a barrel portion adapted to be received in the keyway of a rotary tumbler lock, said barrel portion having a plurality of longitudinally extending flutes circumferentially spaced about said barrel portion, a lock body adapted to receive said barrel portion, said lock body having a bore which is circumferentially spaced about said barrel portion, and an externally threaded portion, a key blade adjustably positioned in each of said flutes, a securing means for securing said key blade in the adjusted position within said flute, said securing means including a resilient member circumscribing said key blades in said flute, and a locking collar having a threaded portion adapted to mate with the threaded portion of said key body, said locking collar having an inturned flange for effecting compression of said resilient member as said collar is tightened onto said body.

Claim 10

An improved resettable key comprising: a barrel portion adapted to be received in the keyway of a rotary tumbler lock, said barrel portion having a plurality of longitudinally extending flutes circumferentially spaced about said barrel portion, a lock body adapted to receive said barrel portion, said lock body having a bore which is circumferentially spaced about said barrel portion, and an externally threaded portion, a key blade adjustably positioned in each of said flutes, a securing means for securing said key blade in the adjusted position within said flute, said securing means including a resilient member circumscribing said key blades in said flute, and a locking collar having a threaded portion adapted to mate with the threaded portion of said key body, said locking collar having an inturned flange for effecting compression of said resilient member as said collar is tightened onto said body.