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Modern manual door closer Eclipse door spring and separate checking mechanism. 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.
SuzoHapp North America (formerly Happ Controls, Inc.) is the largest manufacturer and distributor of input device components and related accessories for arcade games, vending machines, casino games, and industrial control systems in the U.S. [3] [4] Headquartered in Mount Prospect, Illinois, [5] the company produced its own products locally until 2005, when it began outsourcing to China.
Automatics: automatic door operators, sliding doors, swing doors and revolving doors, automatically operated sliding glass panel partitions; Glass: fittings, door and side panel rails, locks; Security: access control systems, security door fittings, emergency exit control systems, lock and electric keeps, security and detection systems
Chamberlain's "myQ" technology is embedded in garage door openers and lights, [5] can be added to Wi-Fi networks to control these devices and is being incorporated into future home products, all through a monthly subscription. [6]
Access control systems and power supply stations Northwest Door LLC, Puyallup, WA, USA: Sectional doors made of steel, timber and aluminium Hörmann Flexon LLC, Burgettstown, PA, USA High-speed doors Hörmann LLC, Montgomery, IL, USA Sectional garage doors and sectional industrial doors Hörmann Beijing Door Production Co. Ltd., China
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A remote keyless system (RKS), also known as remote keyless entry (RKE) or remote central locking, is an electronic lock that controls access to a building or vehicle by using an electronic remote control (activated by a handheld device or automatically by proximity). [1]
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