BRUCE W MARIEN
Electrician in Fitchburg, MA
License number
Massachusetts 36209
Issued Date
Mar 17, 1993
Expiration Date
Jul 31, 2019
Type
Journeyman Electrician
Address
Address
Fitchburg, MA 01420
Professional information
Elevator Interface
US Patent:
2013000, Jan 3, 2013
Filed:
Jun 30, 2011
Appl. No.:
13/173049
Inventors:
Bruce W. Marien - Fitchburg MA, US
Jeffrey R. Brooks - Ashburnham MA, US
Jeffrey R. Brooks - Ashburnham MA, US
Assignee:
SIMPLEXGRINNELL LP - Westminster MA
International Classification:
G08B 21/18
US Classification:
187390
Abstract:
A system and method are disclosed for logically disconnecting fire alarm equipment from elevator control equipment to enable independent testing of each equipment set. The system and method may include an interface having a fire alarm equipment side and an elevator control side which are interconnected by a plurality of relays. A plurality of action relays may be associated with specific functions of the elevator controller. A plurality of bypass relays are interposed between the action relays and the elevator controller so that when a “bypass” operation is initiated, the bypass relays prevent signals from the action relays from reaching the elevator controller. As such, the action relays can be tested without impacting ongoing elevator operations. In addition, the logical disconnection arrangement ensures proper functioning of the system once testing is completed. Other embodiments are disclosed and claimed.