Older patio door Mortise lock

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Quick Learner from Gilbert, Arizona

May 30, 2026 3:43 pm

My sliding patio door mortise lock has failed and will not stay unlocked. A small plastic piece broke off inside the lock.
I’ve attached photos of the lock, strike plate, door, and measurements.
The lock is marked:

Canadian Patent No. 919215
Patented 1978

Can you identify the correct replacement part?

5 user uploaded images

2 Replies

Bob from SWISCO

May 31, 2026 5:09 pm

Hello. See the 82-211 or 82-214B. Depending on the dimensions, one of these mortise locks might be what you need.

Alternate image for 82-211

Alternate image for 82-211

Dimensions for the 82-214B lock and its keeper

Dimensions for the 82-214B lock and its keeper

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