Weather resistant lock

A method of inhibiting water accumulation in a locking system for use in a storage structure, comprising:

• identifying a first shell having an asymmetrical profile across a longitudinal axis, the first shell comprising a solid waterproof circumferential outer wall extending around the longitudinal axis of the first shell, the first shell being configured for housing a first rotatable locking core;
• verifying that the asymmetrical configuration of the first shell corresponds to an asymmetrical profile of a second shell having a top surface, the top surface defining a top opening closed with a cap, the second shell being designed for use in the locking system for the storage structure;
• the second shell being configured for housing a second rotatable locking core;
• and
• replacing the second shell with the first shell, for aligning engagement with a correspondingly configured mounting recess defined by the storage structure, and for operative communication with the locking system.

A tumbler lock comprising:

• a shell defining an elongated body with an asymmetrical perimeter profile and extending along a longitudinal axis between a proximate end and a distal end for housing a rotatable core, the shell comprising a solid waterproof circumferential outer wall extending around the longitudinal axis,
• the rotable core defining a core head adjacent the proximate end, the rotatable core defining a first array of tumblers for engaging the shell when the rotatable core is in a locked position,
• an interior drainway extending downwardly and outwardly from within the tumbler lock, the drainway comprising a channel along the bottom interior of the shell, and a dripway from the keyway in communication with the channel, the dripway extending along a proximate lower edge of the shell, for water to flow outwardly via a drain opening,
• an arcuate recess within a lower quadrant of the tumbler lock, the recess is defined by an outer surface of the core head and an opposing interior surface of the shell, the arcuate recess extending between the outer surface of the core head and the opposing interior surface of the shell,
• the shell being configured for interchangeable use in place of a second shell housing a second rotatable locking core defining a second array of tumblers for engaging the second shell when the second rotatable core is in a locked position, the second shell having a corresponding asymmetrical perimeter profile, and the first array of tumblers in the first rotatable core being different from the second array of tumblers in the second locking core.

A tumbler lock extending along a longitudinal axis from an outer face at a proximate end to a distal end, the distal end configured for insertion into a housing recess having an asymmetrical perimeter profile in a storage structure, the tumbler lock comprising:

• a shell with a corresponding asymmetrical perimeter profile for housing a rotatable core having a core head adjacent the proximate end, the shell extending between the proximate end and the distal end,
• the rotatable core defining a linear plurality of tumbler slots communicating with a keyway when an operating key is inserted into the keyway, a set of tumblers in the linear plurality of tumbler slots in coplanar interfacial alignment along an exterior surface of the rotatable core, when in the first position, to permit rotation of the rotatable core, about the axis, within the shell, and the tumblers being biased outwardly for engagement with an interior surface of the shell,
• an interior drainway extending downwardly and outwardly from within the tumbler lock, to channel water outwardly via a drain opening,
• a drainage space adjacent the proximate end defined by an arcuate gap within a lower quadrant of the tumbler lock, the drainage space extending between an outer surface of the core head and an opposing interior surface of the shell for fluid communication with the drainway, and
• the shell being configured for interchangeable use in place of a second shell housing a different second rotatable core.