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Electric eye for a garage door opener. An electric eye is a photodetector used for detecting obstruction of a light beam. An example is the door safety system used on garage door openers that use a light transmitter and receiver at the bottom of the door to prevent closing if there is any obstruction in the way that breaks the light beam.
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.
Sectional garage door Up-and-over garage door Garage Door Hardware. A garage door is a large door to allow egress for a garage that opens either manually or by an electric motor (a garage door opener). Garage doors are frequently large enough to accommodate automobiles and other vehicles. The operating mechanism is usually spring-loaded or ...
4 Forgotten Dimensions - Replacement Door Opening Mechanism may be too long. ... 1 comment. 6 door opener and other wikipedias. 1 comment. 7 External links modified ...
For example, the same Delta flight from Chicago to San Francisco for the same date costs 14,000 Delta miles plus $5.60 when you transfer your American Express points to Delta. That’s about 3,000 ...
Midwest. Classic Midwestern Christmas foods include casseroles (especially green bean casserole, cheesy broccoli casserole, and Tater Tot casserole) and cheese balls.
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