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A lockset assembly comprises an inner handle assembly, a chassis, a latch assembly, an outer spindle, an outer handle assembly of cylinder type, and an outer handle assembly of interchangeable core type. One of the outer handle assembly of cylinder type and the outer handle assembly of interchangeab

A lockset assembly comprises an inner handle assembly, a chassis, a latch assembly, an outer spindle, an outer handle assembly of cylinder type, and an outer handle assembly of interchangeable core type. One of the outer handle assembly of cylinder type and the outer handle assembly of interchangeable core type is releasably engaged with the outer spindle to allow an interchange between a cylinder and an interchangeable core via an interchange between the outer handle assembly of cylinder type and the outer handle assembly of interchangeable core type without the need of replacement of a whole lockset.

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1. A lockset assembly comprising: an inner handle assembly; a chassis; a latch assembly; an outer spindle; an outer handle assembly of cylinder type, the outer handle assembly of cylinder type comprising a first handle and a cylinder mounted in the first handle; and an outer handle assembly

1. A lockset assembly comprising: an inner handle assembly; a chassis; a latch assembly; an outer spindle; an outer handle assembly of cylinder type, the outer handle assembly of cylinder type comprising a first handle and a cylinder mounted in the first handle; and an outer handle assembly of interchangeable core type, the outer handle assembly of interchangeable core type comprising a second handle and an interchangeable core mounted in the second handle; wherein one of the outer handle assembly of cylinder type and the outer handle assembly of interchangeable core type is releasably engaged with the outer spindle to allow an interchange between the cylinder and the interchangeable core via an interchange between the outer handle assembly of cylinder type and the outer handle assembly of interchangeable core type without the need of replacement of a whole lockset; the first handle of the outer handle assembly of cylinder type comprising a compartment, the cylinder comprising a wing projecting outward therefrom, the compartment being defined by a wall means for receiving the cylinder and the wing, the compartment comprising a cylindrical first portion for receiving the cylinder and a second portion for receiving the wing, the outer spindle further comprising a slot, the cylinder being mounted in the compartment with the wing extending beyond the outer spindle via the slot; the wall means comprising a first insert and a second insert formed on an inner periphery thereof, the first insert being fitted between a side of the wing and an end edge delimiting a side of the slot of the outer spindle, the second insert being fitted between another side of the wing and another end edge delimiting another side of the slot of the outer spindle, thereby preventing undesirable movement of the cylinder. 2. The lockset assembly as claimed in claim 1, wherein the second handle of the outer handle assembly of interchangeable core type comprises an engaging rib and a FIG. 8 hole, further comprising a retainer ring attached to an outer end of the outer spindle, the retainer including a stop, the outer spindle comprising a first slot for engaging with the engaging rib of the second handle of the outer handle assembly of interchangeable core type, the outer spindle further comprising a second slot, the interchangeable core being removably mounted in the FIG. 8 hole and including a retractable member that bears against the stop on the retainer ring for preventing disengagement of the interchangeable core a portion of the interchangeable core extending beyond the outer spindle via the second slot. 3. The lockset assembly as claimed in claim 1, wherein the first handle of the outer handle, assembly of cylinder type comprises an engaging rib the outer spindle comprising another slot for engaging with the engaging rib of the first handle of the outer handle assembly of cylinder type. 4. The lockset assembly as claimed in claim 3, further comprising an insert mounted in the second portion of the compartment and including a space for securely holding the wing of the cylinder.