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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.
Website. www.geniecompany.com. GMI Holdings Inc. (dba The Genie Company) is an American manufacturer of garage door openers & related accessories. It was founded in 1923 as the Alliance Manufacturing Company, located in Alliance, Ohio. At the time the company produced a broad line of consumer, industrial and military products. [2]
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 counterbalanced to offset the door's weight and reduce the human or ...
Pages in category "Garage door openers". The following 7 pages are in this category, out of 7 total. This list may not reflect recent changes .
A rolling code (or sometimes called a hopping code) is used in keyless entry systems to prevent a simple form of replay attack, where an eavesdropper records the transmission and replays it at a later time to cause the receiver to 'unlock'. Such systems are typical in garage door openers and keyless car entry systems.
Chamberlain Group (CGI), the corporate parent company to LiftMaster, Chamberlain, Merlin, and Grifco, designs and engineers residential garage door openers, commercial door operators, security cameras, and gate entry systems. CGI is also the parent company to Controlled Products Systems Group, the largest wholesale distributor of perimeter ...
A door closer is a mechanical device that regulates the speed and action of a door ’s swing. [1] Manual closers store the force used to open the door in some type of spring and reuse it to close the door. Automatic types use electricity to regulate door swing behavior. Door closers can be linked to a building's fire and security alarm systems.
A residential garage (UK: / ˈɡærɑːʒ, - rɑːdʒ, - rɪdʒ / GARR-ahzh, -ahj, -ij, US: / ɡəˈrɑːʒ, - rɑːdʒ / gə-RAHZH, -RAHJ) is a walled, roofed structure with a door for storing a vehicle or vehicles that may be part of or attached to a home ("attached garage"), or a separate outbuilding or shed ("detached garage").