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His first patent was in 1909, inventing a door lock that turned lights on and off. [1] At the time, Schlage was a citizen of Germany residing in Berkeley, California. [2] In 1919, Schlage patented a door knob which, when pushed up, locked the door. [3] [4] This was succeeded by a door knob incorporating a push-button lock, patented in 1924. [5]
Schlage (/ ʃ l eɪ ɡ / SHLAYG) [1] [2] is an American lock manufacturer founded in 1920 by Walter Schlage. Schlage was headquartered in San Francisco from its inception until it relocated to Colorado Springs, Colorado, in 1997. Schlage also produces high-security key and cylinder lines Primus, Everest, and Everest Primus XP.
A keycard lock is a lock operated by a keycard, a flat, rectangular plastic card. The card typically, but not always, has identical dimensions to that of a credit card , that is ID-1 format . The card stores a physical or digital pattern that the door mechanism accepts before disengaging the lock.
A remote keyless system can include both remote keyless entry (RKE), which unlocks the doors, and remote keyless ignition (RKI), which starts the engine. Numerous manufacturers have offered entry systems that use door- or pillar-mounted keypad entry systems ; touchless passive entry / smart key systems that allow a key to remain pocketed; and ...
An electronic lock (or electric lock) is a locking device which operates by means of electric current. Electric locks are sometimes stand-alone with an electronic control assembly mounted directly to the lock.
The electronic lock core is the same as the mechanical lock core, which can be directly modified into the existing mechanical lock. Different from the mechanical lock core, the electronic lock core integrates a miniature electronic single-chip microcomputer , there is no mechanical keyhole, and only three metal contacts are retained. [ 4 ]
Many combination locks have three wheels, but the lock may be equipped with additional wheels, each with a drive pin and fly, in a similar manner. The number of wheels in the mechanism determines the number of specific dial positions that must be entered to open the lock, so a three-sequence combination is required for a three-wheel lock.
Willi Schlage (24 December 1888 – 5 May 1940 in Berlin) was a German chess master and trainer. Active as a player during the inter-war years of the Weimar Republic and later as a trainer during the rise of the Third Reich, Schlage is remembered for a game depicted in the science fiction film 2001: A Space Odyssey, which chess writers attributed to him.