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Early generator interlock kits consisted of two sliding steel or plastic (depending on the brand) plates held together by three bolts and installed on the front cover of the home's breaker panel, however, some models made by Eaton (formerly Cutler-Hammer) and Siemens for panels manufactured by them install on the adjacent circuit breakers themselves and consist of a sliding arm for breakers ...
Smart Start, Inc. is an American manufacturer of alcohol-monitoring technology, including Ignition Interlock Devices and portable alcohol breath-test devices. It provides services and technologies that prevent intoxicated drivers from operating a vehicle. In almost all cases, these devices are installed by court order due to DUI or DWI violations.
The electric immobiliser/alarm system was invented by St. George Evans and Edward Birkenbuel and patented in 1919. [2] They developed a 3x3 grid of double-contact switches on a panel mounted inside the car so when the ignition switch was activated, current from the battery (or magneto) went to the spark plugs allowing the engine to start, or immobilizing the vehicle and sounding the horn. [3]
Intoxalock partners with local automotive shops and certifies them as installers of their devices, in a de-centralized business model. Intoxalock has over 5,000 installation locations. Some states require ignition interlock devices to come equipped with a camera that takes a picture every time a sample is given.
The largest ignition interlock device providers are made by Draeger, Smart Start, [25] Guardian, Intoxalock, based in Des Moines, Iowa [26] and LifeSafer. [27] Most states impose the installation of ignition interlock devices (IID), with varying thresholds for installation requirements.
Trapped key interlock transfer block. Another example is an electric kiln. To prevent access to the inside of an electric kiln, a trapped key system may be used to interlock a disconnecting switch and the kiln door. While the switch is turned on, the key is held by the interlock attached to the disconnecting switch.
GPS-based tracking system used for some individuals released from prison, jail or immigrant detention. According to a survey distributed by The Pew Charitable Trusts in December 2015, "the number of accused and convicted criminal offenders in the United States who are supervised with ankle monitors and other GPS-system electronic tracking devices rose nearly 140 percent over 10 years ...
The diagram from Beard's 1897 coupler patent [1]. Janney couplers were first patented in 1873 by Eli H. Janney (U.S. patent 138,405). [2] [3] Andrew Jackson Beard was amongst various inventors that made a multitude of improvements to the knuckle coupler; [1] Beard's patents were U.S. patent 594,059 granted 23 November 1897, which then sold for approximately $50,000, and U.S. patent 624,901 ...
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