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Sliding gates are also used for cantilever gate systems. ... The backbone of any electric gate, whether automatic or not, is the electric gate motor, two distinct ...
A sliding door operator (or sliding door opener or automatic sliding door operator) is a device that operates a sliding door for pedestrian use. It opens the door automatically, waits, then closes it.
The automatic door used a mat actuator. In 1960, they co-founded Horton Automatics Inc and placed the first commercial automatic sliding door on the market. [5] With the invention of the Gunn diode, microwave motion detectors became common in automatic doors in the 1970s. [6] [7] In 1980, the first automatic door using an infrared sensor was ...
Full Energy operators are typically used on the outside doors of medium-sized retail business. (Larger retail businesses prefer sliding door operators.)Low Energy operators are typically used where a simple door closer is sufficient for able users, yet it is necessary to add access to disabled users: small businesses, apartments, bathrooms.
Extension spring systems should always be restrained by a safety cable that runs through the middle of the spring, tying off to a solid point at the rear and front of the horizontal door track. The safety cable prevents hazards to bystanders when a spring, pulley, or cable breaks under tension and makes the system relatively safe.
Automatic mechanisms are also used for security purposes, being controlled by a keypad, swipe card, or biometrically controlled electromagnetic device. [citation needed] The latter include retina scanners, fingerprint readers, and voice recognition technologies. [28] Electric door closers may also be hooked to a building’s fire alarm system.
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