enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Electromagnetic lock - Wikipedia

   en.wikipedia.org/wiki/Electromagnetic_lock

   Because the mating area of the electromagnet and armature is relatively large, the force created by the magnetic flux is strong enough to keep the door locked even under stress. Typical single door electromagnetic locks are offered in both 600 lbf (2,700 N) and 1,200 lbf (5,300 N) dynamic holding force capacities.

3. Electromagnetic door holder - Wikipedia

   en.wikipedia.org/wiki/Electromagnetic_door_holder

   A simple electromagnetic door holder consists of a strong electromagnet, usually attached to a wall or mounted in a floor pedestal enclosure, next to the door it controls. The mechanism may be mounted near the floor, at the upper corner of the open door, or at any convenient height along the latch edge (away from the hinged edge).

4. Door - Wikipedia

   en.wikipedia.org/wiki/Door

   A steel security door is one which is made from strong steel, ... including magnetic strips, to meet higher standards. ... (for interior doors) or 1 3/4" (exterior).

5. Keycard lock - Wikipedia

   en.wikipedia.org/wiki/Keycard_lock

   The card stores a physical or digital pattern that the door mechanism accepts before disengaging the lock. There are several common types of keycards in use, including the mechanical holecard, barcode , magnetic stripe , Wiegand wire embedded cards, smart card (embedded with a read/write electronic microchip ), RFID , and NFC proximity cards.

6. Ferromagnetism - Wikipedia

   en.wikipedia.org/wiki/Ferromagnetism

   However, the magnetic domains in a material are not fixed in place; they are simply regions where the spins of the electrons have aligned spontaneously due to their magnetic fields, and thus can be altered by an external magnetic field. If a strong-enough external magnetic field is applied to the material, the domain walls will move via a ...

7. This is why you should always close the interior doors in ...

   www.aol.com/news/why-always-close-interior-doors...

   Closing your interior doors can help disperse pressure throughout the home and reduce the overall force stacked up against your roof -- basically your first line of defense against Mother Nature ...