Door lock
AssigneeTheodore Bargman Company
InventorEdward F. Tannery
Life of this patent
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Abstract
A door lock comprising a bolt disposed to slide axially in a frame, an outer door handle which includes an actuator extending into a cavity in the bolt, a latch disposed in the bolt cavity to slide laterally of the bolt axis between an unlock position adjacent the handle actuator and a lock position spaced laterally therefrom, and means selectively to position the latch in either the lock or the unlock position.
Claims20
A door lock comprising a frame, an elongate belt disposed in said frame for movement in the direction of the bolt axis, said bolt having a cavity therein and having a nose end extending outwardly beyond said frame, first means carried by said frame and extending into said cavity for movement between first and second positions generally in a direction parallel to said bolt axis, a latch disposed to slide laterally of said bolt axis within said cavity between an unlock position in which said latch is aligned with said first means in the direction of said bolt axis for abutment therewith such that movement of said first means from said first to said second position results in conjoint movement of said latch and said bolt to retract said bolt and a lock position in which said latch is spaced from said first means laterally of said bolt axis in both said first and second positions of said first means, and means for selectively positioning said latch in either said lock or said unlock position.
A lock comprising an inner plate, an outer plate, a frame disposed between said plates, an elongated bolt on said frame slidable between extended and retracted positions, said bolt having a cavity therein, a latch disposed in said cavity for sliding movement transversely of the axis of the bolt between lock and unlock positions, said latch being mounted on the bolt such that movement of the latch in the bolt retracting direction causes the bolt to retract, a handle pivotally mounted on said outer plate and having an actuator thereon projecting into said cavity, said latch when in the unlock position being abutted by said actuator when the handle is actuated to retract the bolt, said actuator being in non-abuttable relation to the latch when the latch is in the lock position, a handle mounted on said inside plate for sliding movement in a direction parallel to the bolt axis, means on said inside handle engaging said bolt for retracting the bolt when the handle is slidably actuated, a latch actuator movably mounted on said inside handle engaging said latch and adapted when actuated to shift the latch between said lock and unlock positions, and cam means on said frame for shifting the latch to the unlock position in response to actuation of said inside handle in the bolt retracting direction.
Dependencies are inferred from the claim text.