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US 2014/0041427 A1Published application
Hybrid lock cylinder
AssigneeSchlage Lock Company LLC
InventorsRobert D. Zuraski, Mary Teresa Sarich, Daniel Hugh Kindstrand, David Bruce Miller
Life of this patent
Estimating the term…
Abstract
The present disclosure provides for a lock cylinder having a rotatable spindle with at least one disc and at least one wafer housing rotatingly engaged therewith. A slidable wafer is carried on the wafer housing. A locking bar is operable to prevent rotation of the lock cylinder in a locked position and permit rotation of the lock cylinder in an unlocked position.
Claims26
A hybrid lock cylinder comprising:
- a spindle having an axis of rotation;
- at least one wafer housing positioned within the spindle and having a locking bar receiving portion, the wafer housing configured to rotate about the axis of rotation;
- a wafer with lock extensions formed on opposing ends thereof being slidably carried by the wafer housing;
- at least one disc configured to rotate about the axis of rotation positioned adjacent the wafer housing;
- a locking bar receiving portion formed in each wafer, each wafer housing and each disc;
- and
- a locking bar movable relative to the locking bar receiving portion of each wafer, wafer housing and disc.
4 more elements
A method for unlocking a hybrid cylinder comprising:
- inserting a key into a keyway of the cylinder;
- rotating, with the key, a plurality of discs such that a locking bar receiving region of each disc is aligned with one another;
- sliding, with the key, a lock extension of at least one wafer out of engagement with a spindle;
- rotating, with the key, a plurality of discs and at least one wafer housing relative to the spindle until a locking bar is aligned with and moves into a locking bar receiving region formed in each wafer housing and each disc;
- rotating, with the key, the spindle, the discs and the at last one wafer housing after the locking bar is moved to a shear plane between the spindle and the discs and the at least one wafer housing;
- and
- rotating, with the key, the coupled spindle, discs, and each wafer housing to unlock the hybrid cylinder from a support structure.
4 more elements
An apparatus comprising:
- a rotatable spindle releasably lockable to an outer support structure;
- a rotatable wafer housing positioned within the spindle and releasably lockable to the spindle and to the outer support structure with a slidable wafer;
- at least one rotatable disc being free to rotate relative to the spindle when the spindle is locked to the outer support structure;
- and
- a movable locking bar operable to prevent rotation of the spindle in a first position and permit rotation of the spindle in a second position.
2 more elements
Dependencies are inferred from the claim text.