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Perfluoro(2-methyl-3-pentanone) is a fluorinated ketone with the structural formula CF 3 CF 2 C(=O)CF(CF 3) 2, a fully-fluorinated analog of ethyl isopropyl ketone. It is used as an electronics coolant liquid and fire protection fluid sold commercially by 3M under brand names such as Novec 1230 , Novec 649 , and FK-5-1-12 .
Kidde (/ ˈ k ɪ d ə / [2]) is an American multinational company that manufactures and distributes fire detection and suppression equipment, as well as smoke and CO alarm units. Kidde is one of America's largest manufacturers of smoke alarms [ 3 ] [ 4 ] and fire safety products. [ 5 ]
A thermostat exerts control by switching heating or cooling devices on or off, or by regulating the flow of a heat transfer fluid as needed, to maintain the correct temperature. A thermostat can often be the main control unit for a heating or cooling system, in applications ranging from ambient air control to automotive coolant control.
Walter Kidde (/ ˈ k ɪ d ə /; March 7, 1877 – February 9, 1943) was an American businessman. He was the owner of the Kidde company which manufactured fire extinguishers. His parents immigrated to the United States from Bohemia. Kidde graduated from Stevens Institute of Technology in 1897. [2] He died of a heart attack in 1943 at the age of 65.
This regulation is now carried out by an internal thermostat. Conveniently, both the sensing element of the thermostat and its control valve may be placed at the same location, allowing the use of a simple self-contained non-powered thermostat as the primary device for the precise control of engine temperature. [2]
In 1992 Lionel attempted to reverse its fortunes by merging with the bankrupt Child World, the United States' #3 toy retailer, but was unable to secure financing. [2] By February 1993 Lionel had closed all but 29 stores in six states, concentrating on the markets of Philadelphia , central New Jersey , Baltimore , Washington, D.C. , Cleveland ...
Housing Act of 1937; Long title: An Act to provide financial assistance to the States and political subdivisions thereof for the elimination of unsafe and insanitary housing conditions, for the eradication of slums, for the provision of decent, safe, and sanitary dwellings for families of low income, and for the reduction of unemployment and the stimulation of business activity, to create a ...
A typical one-line diagram with annotated power flows. Red boxes represent circuit breakers, grey lines represent three-phase bus and interconnecting conductors, the orange circle represents an electric generator, the green spiral is an inductor, and the three overlapping blue circles represent a double-wound transformer with a tertiary winding.