| CPC E05B 13/105 (2013.01) | 20 Claims |

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1. A push button lock comprising:
an outer case;
a button assembly movable relative to the outer case, the button assembly including a driver, wherein the driver includes a shoulder and a ramped surface;
a tail movable relative to the outer case; and
a spring retainer coupled to the tail;
wherein the shoulder is configured to engage and push the tail axially along a longitudinal axis when the button assembly is in an unlocked and depressed state, and wherein the driver is configured to move axially along the longitudinal axis relative to the tail, such that a portion of the spring retainer is configured to be engaged and moved outwardly by the ramped surface, when the button assembly is in a locked and depressed state.
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