Door knob construction
Cylinder lock with force-immune knob
ApplicationNo. 425704 filed on 10/23/1989
US Classes:70/224, Lock and handle assembly70/367, Cylinder and plug assembly70/369Key only controlled
ExaminersPrimary: Smith, Gary L.
Assistant: Dino, Suzanne L.
Attorney, Agent or Firm
International ClassE05B 013/10
AbstractA door handle assembly includes a hollow knob shell, a lock core having a front end formed to include a keyway opening, and a unitary core retainer sleeve situated inside an interior cavity of the knob shell. The unitary core retainer sleeve is formed to include means for supporting the lock core inside the interior cavity so that the front end of the lock core is positioned to lie in a front opening of the knob shell to permit a user to insert a key into the keyway opening.