Invention Grant
- Patent Title: Electronic push retraction exit device
- Patent Title (中): 电子推回退出装置
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Application No.: US12360895Application Date: 2009-01-28
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Publication No.: US07883123B2Publication Date: 2011-02-08
- Inventor: Mark A. Condo , Darren C. Eller , Jon Hulse , Kosta G. Karachristos , Dale D. Martin , Brett E. Tannone
- Applicant: Mark A. Condo , Darren C. Eller , Jon Hulse , Kosta G. Karachristos , Dale D. Martin , Brett E. Tannone
- Applicant Address: US CT New Haven
- Assignee: Sargent Manufacturing Company
- Current Assignee: Sargent Manufacturing Company
- Current Assignee Address: US CT New Haven
- Agency: DeLio & Peterson, LLC
- Main IPC: E05B65/10
- IPC: E05B65/10 ; E05C3/06

Abstract:
An electronic push retraction exit device includes a support rail, a push rail and a latch mechanism having a latch bolt operably connected to the push rail and movable between latched and unlatched positions. A control circuit in the exit device drives a linear actuator to retract and hold the push rail and the latch bolt in the unlatched position. The linear actuator preferably includes a stepping motor and is connected to the push rail through a lost motion connection allowing the exit device to be mechanically operated without moving the linear actuator. The control circuit preferably includes an electrical adjustment for the retraction distance of the latch bolt and an adjustable relatch timer. The exit device may be operated by a remote switch attached to a control connection, which may be permanently closed to simulate a prior art electrically operated exit device for compatibility with third party control systems.
Public/Granted literature
- US20090127869A1 ELECTRONIC PUSH RETRACTION EXIT DEVICE Public/Granted day:2009-05-21
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