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2. Crash bar - Wikipedia

   en.wikipedia.org/wiki/Crash_bar

   A crash bar (also known as a panic exit device, panic bar, or bump bar) [1] [2] is a type of door opening mechanism which allows users to open a door by pushing a bar. While originally conceived as a way to prevent crowd crushing in an emergency, crash bars are now used as the primary door opening mechanism in many commercial buildings.

3. Carl Prinzler - Wikipedia

   en.wikipedia.org/wiki/Carl_Prinzler

   Working with his neighbor, Henry H. DuPont, an Indianapolis architect, the two men developed and were awarded a series of nine patents relating to new and improved exit door hardware. All of the patent designs focused on a single lever bar (and related hardware) that would cause a locked door to pop open when simple interior pressure was ...

4. Door furniture - Wikipedia

   en.wikipedia.org/wiki/Door_furniture

   A typical "handle set" is composed of the exterior handle, escutcheon, an independent deadbolt, and the interior package (knob or lever). On some doors the latch is incorporated into a hinged handle that releases when pulled on. See also: Doorknob – A knob or lever on an axle that is rotated to release the bolt; Crash bar or Panic bar; [3]

5. Electronic lock - Wikipedia

   en.wikipedia.org/wiki/Electronic_lock

   In the US, UL rated doors must retain their rating: in new construction doors are cored and then rated. but in retrofits, the doors must be re-rated. Electrified exit hardware, sometimes called "panic hardware" or "crash bars", are used in fire exit applications. A person wishing to exit pushes against the bar to open the door, making it the ...

6. This $11 handle easily hooks onto your car's door latch to ...

   www.aol.com/lifestyle/ingenious-aid-helps-enter...

   At 6.5 inches long and 1.5 inches wide, this handle provides a strong grip that's large enough for even the biggest hand. It's easy to use, too — it hooks into the door latch for a secure fit ...

7. Exit control lock - Wikipedia

   en.wikipedia.org/wiki/Exit_control_lock

   Many exit control locks are based on magnetic locks. One type, delayed egress magnetic locks, will not allow the door to open immediately. This allows a guard to get to the door before the door opens. It will also release if there is a fire alarm or power failure, but otherwise these locks hold the exit doors shut. These units are common in ...