Patents by Inventor Doyon Pierre

Doyon Pierre has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20020056300
    Abstract: A lock (10) suited for locking safes and vaults comprises an access control system (12) and a locking device (14). The access control system (12) is provided with an anti-tampering system (24, 41 and 70) which is adapted to provide indication of illegal separation of the parts (30 and 60) housing the access control system (12). The locking device (14) includes a bolt assembly (20) which may be configured to provide a spring-loaded bolt or, alternatively, a deadbolt. The locking device (14) further comprises a re-locking mechanism (202 and 202′) adapted to prevent retraction of the bolt (20) upon displacement of the cover (108) of the lock casing (106).
    Type: Application
    Filed: November 6, 2001
    Publication date: May 16, 2002
    Applicant: Ilco Unican Inc.
    Inventors: Doyon Pierre, Yves Messier, Charles Stephenson