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The backbone of any electric gate, whether automatic or not, is the electric gate motor, two distinct motor types exist hydraulic, or electromechanical. This is the electric device which actually enables the electric gate to open and close without having to manually push the gate.
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 ...
Operators are powered by an electric motor. They differ in how they use the motor's energy to open the door. Disengaging, closer-based, push-mount, electro-mechanical operator. View from above. Shades of blue: standard door closer. Shades of red: opener gears. Gold: motor. Operators use various internal technologies.
The electric overhead garage door opener was invented by C.G. Johnson in 1926 in Hartford City, Indiana. [1] Electric Garage Door openers did not become popular until Era Meter Company of Chicago offered one after World War II where the overhead garage door could be opened via a key pad located on a post at the end of the driveway or a switch inside the garage.
Thailand's recovery from the 1997–1998 Asian financial crisis depended mainly on exports, among various other factors. As of 2012, the Thai automotive industry was the largest in Southeast Asia and the 9th largest in the world. [4] [5] [6] The Thailand industry has an annual output of near 1.5 million vehicles, mostly commercial vehicles. [6]
In September 2020, the Bangkok Post reported that the EEI was jointly conducting a study with the Electricity Generating Authority of Thailand (EGAT), the Pollution Control Department, and the Federation of Thai Industries to create a business model for electronic waste management to better cope with the surge of hazardous rubbish in Thailand ...