Ad
related to: generator that turns on automatically open door
Search results
Results from the WOW.Com Content Network
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 ...
An engine-generator is the combination of an electrical generator and an engine (prime mover) mounted together to form a single piece of self-contained equipment. The engines used are usually piston engines, but gas turbines can also be used, and there are even hybrid diesel-gas units, called dual-fuel units.
The switch transition mode (see below) of a transfer switch may be Open Transition (OT) (the usual type), or Closed Transition (CT)). For example, in a home equipped with a backup generator and an ATS, when an electric utility outage occurs, the ATS will tell the backup generator to start.
A standby generator is a back-up electrical system that operates automatically. [1] Within seconds of a utility outage an automatic transfer switch senses the power loss, commands the generator to start and then transfers the electrical load to the generator. The standby generator begins supplying power to the circuits. [2]
The operator is placed in the space above the sliding door. An electric motor, geared down to get a lower speed and a higher torque, drives a pulley at one end of a belt. The door is clamped to the belt. To open the door, the motor turns the pulley, which in turn turns the belt, which in turn drags the door. To close the door, the reverse occurs.
The 2,500-watt generator offers two 120-volt, 20-amp AC outlets, a 12-volt socket, and a dual-port USB adapter to charge smaller electronic devices like your smartphone.
Electromechanical—the motor uses purely mechanical means to open the door: gears, cams, levers and such. This is the preferred type in the US. Electro-hydraulic—the motor drives a hydraulic pump, which pressurizes the oil in a door closer, which in turn turns the door closer and opens the door. This is the preferred type in Europe.
Alexander Miles (May 18, 1838 – May 7, 1918) was an African American inventor and businessman, known for being awarded a patent for automatically opening and closing elevator doors. He was awarded U.S. patent 371,207 on October 11, 1887.
Ad
related to: generator that turns on automatically open door