Patent ID: 9027372
Filing Date: 2015-05-12
Classification: E05B,E05C,Y10S,Y10T

Abstract:
1. A lock assembly, comprising: a latch assembly having a retractable bolt; a spindle assembly operatively coupled to the latch assembly; a coupling mechanism connected to the spindle assembly, the coupling mechanism having an outer sleeve rotatable around a first axis and having a longitudinal interior opening that extends along the first axis; a first lockset including a first operator handle, a setscrew, and a keyed lock core, the first operator handle including a proximal lock core opening, and a distal shaft portion having an axial opening configured to receive the outer sleeve, the distal shaft portion and the outer sleeve configured to define a through path oriented across the longitudinal interior opening of the outer sleeve, a portion of the through path at the outer sleeve configured to threadably receive the setscrew to fasten the first operator handle to the outer sleeve; and the keyed lock core having a keyed rotatable cylinder and a tailpiece and configured for insertion into the proximal lock core opening of the first operator handle, the tailpiece being positioned in the longitudinal interior opening of the outer sleeve to obstruct the through path and block access to the setscrew via the through path to prevent unauthorized removal of the first operator handle, regardless of a rotational position of the keyed rotatable cylinder.