Pella Corporation

Amesbury Group, Inc.

Fredrick L Hrdlicka

Bruce A Hagemeyer

Gary E Tagtow

Chad Swier

Daniel L Raap

The present invention includes an apparatus for an active/inactive door system wherein an inactive door lock prevents the locking of an active door lock unless the inactive door lock is first engaged in a locking position. The active door lock includes a dead bolt and a lever for extensible locking engagement with a strike plate on the inactive door. The inactive door lock includes an upper and lower shoot bolt lock, each shoot bolt include a spring lever. Each spring lever is selectably biased against a back side of the strike plate in a first or second detent. The first detent is positioned on the strike plate such that when the corresponding spring lever is biased against in the first detent against a back side of the strike plate the corresponding dead bolt or latch bolt cannot be extended into engagement with the strike plate in a locking position.

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Pella, IA, United States of America

Fredrick L Hrdlicka