Locking device

A locking device, comprising:

• (a) a key operable locking head movable between a locked state and an unlocked state and including:
• (i) a housing having an interior, an axial opening and a seal located proximately to said axial opening;
• (ii) a rotatable retainer disposed in said housing said retainer having an aperture;
• and
• (iii) a lock core disposed in said housing and axially oriented with respect to the opening, said lock core mechanically coupled to said retainer and having a keyway adapted to receive a key whereby rotation of the key acts to rotate said lock core thereby causing rotation of said retainer to define the locked state and the unlocked state;
• and
• (b) a shackle member including a latch portion configured to engage for insertion into the locking head through the axial opening to define a mated state and configured to engage said locking head to prevent relative rotation therebetween, said latch portion including a latch head configured for insertion through the aperture of said retainer when said locking head is in the unlocked state yet configured to prevent withdrawal from said aperture when said retainer is rotated to the locked state whereby said latch portion is captured by said locking head to define a fastened state, said latch portion further including a seal surface which is engaged by said seal when said locking head is in the fastened state thereby to prevent ingress of unwanted substances through the axial opening and into the interior of said housing.

A locking device, comprising:

• (a) a key operable locking head movable between a locked state and an unlocked state and including a housing having an axial opening and an interior, a rotatable retainer disposed in said housing and having an aperture, and a lock core disposed in said housing and axially oriented with respect to the opening, said lock core mechanically coupled to said retainer and having a keyway adapted to receive a key whereby rotation of the key acts to rotate said lock core thereby causing rotation of said retainer to define the locked state and the unlocked state, said housing includes a seal located proximately to the axial opening therein;
• and
• (b) a shackle member including a latch portion configured for insertion into the locking head through the axial opening to define a mated state and configured to engage said locking head to prevent relative rotation therebetween, said latch portion including a latch head having a first profile that has a first cross-section that is configured geometrically similar to the aperture whereby said latch head extends therethrough when said locking head is in the unlocked state, yet configured to prevent withdrawal from said aperture when said locking head is rotated to the locked state whereby said latch portion is captured by said locking head to define a fastened state, said latch portion including a second profile that has a second cross-section that is configured geometrically similar to the axial opening, said second profile positioned to engage the axial opening when in the mated state thereby to prevent relative rotation of said housing and said latch portion, said latch head spaced from said second profile sufficiently so that said retainer may be rotated between the locked and unlocked states, and said latch portion including a seal surface, said seal engaging said seal surface when said latch portion is in the mated state to prevent ingress of unwanted substances through the axial opening and into the interior of said housing.