Patent ID: 7234330

Claim:
A lock comprising: a housing and a cylindrical member, said cylindrical member located within said housing, a lock core located within said cylindrical member, said lock core having a passage at a lock core front end; an inserting pin, said passage sized to receive said inserting pin therethrough; said lock core attached to a disc proximate a passage front end; an engaging post attached at a front end of said inserting pin; a ring mounted intermediate said disc and said engaging post; said cylindrical member having nine pin recesses at a cylindrical member front end; a spring mounted proximate each of said nine pin recesses; a pushing element mounted at a front end of each said spring; said disc having nine disc through passages, each said disc through passage alignable with one of said nine pin recesses; said disc having three front openings at a disc front face, each of said three front openings having a different depth from said disc front face than the other two of said three front openings; said ring having twelve positioning passages, each of said twelve positioning passages aligned with a disc through passage or a disc front opening; and positioning posts of varying lengths mounted in said twelve positioning passages, the front openings receiving no positioning posts and no pins.