US 12,698,645 B2 · Cylinder lock

Abstract

Embodiments of a cylinder lock include a cylinder lock case provided with a hollow interior. A knob key assembly is integrally formed with or secured to a spindle and maintained within the interior of the cylinder lock case. The knob key assembly includes a knob at one end and a locking element head at the other end. Embodiments of the knob key assembly further include a head nestable within a cradle of the spindle, wherein openings in the head and the cradle are aligned and are further alignable with a lateral opening in the cylinder lock case. Rotation of the knob permits the openings in the head and the cradle to come into or out of alignment with the opening in the cylinder lock case, while also rotating the locking element head between a first position where it can be removed from a lock structure and a second position where it cannot be removed.

Claims18

Dependent claims

A cylinder lock, comprising:

a cylinder lock case formed with a hollow interior, wherein the cylinder lock case comprises a knob end and a locking end;
a spindle rotatably secured within the hollow interior of the cylinder lock case;
and
a knob key assembly integrally formed with or secured to the spindle, wherein the knob key assembly comprises a knob positioned at least partially outwardly of the knob end of the cylinder lock case, wherein the knob key assembly further comprises a locking element positioned at least partially outwardly of the locking end of the cylinder lock case,
wherein the cylinder lock case, the spindle and the knob key assembly are each formed with openings extending laterally therethrough, and wherein the spindle comprises a partly spherically shaped head comprising the opening extending laterally through the spindle, and wherein the knob key assembly comprises a partly spherically shaped head cradle comprising the opening extending laterally through the knob key assembly.

2 more elements

Dependencies are inferred from the claim text.

Cylinder lock

Life of this patent

Cylinder lock

Life of this patent

Abstract

Claims18