Retractor assembly for a cylindrical lockset

A lockset comprising:

• a latch bolt assembly configured for mounting within a cross bore of a door;
• and
• a retractor assembly that comprises a retractor and a retractor driver, wherein:
• each of the retractor and retractor driver have cam surfaces for receiving a camming action to retract a latch;
• the retractor is operative to retract the latch independently of the retractor driver, while the retractor driver is stationary;
• and
• the retractor driver is operative to drive the retractor to retract the latch, but only by moving together with the retractor.

A lockset comprising:

• a lock chassis assembly configured for mounting within a main bore of a door;
• a latch bolt assembly configured for mounting within a cross bore of a door;
• and
• a retractor assembly, housed in the lock chassis assembly, that comprises inner and outer retractors coupled to be independently driven, respectively, by inner and outer door handles;
• a locking assembly configured to lock the lockset;
• a blocker assembly separate from the locking assembly and configured to be triggered by an overtorquing attack on the lockset to render the outer retractor inoperative;
• wherein when the outer retractor is rendered inoperative, the inner retractor is configured to remain operative to retract the latch.