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After the war, some of the inventions found new applications. The first transistor radio was released in 1954, and its manufacturing process made use of vacuum pumps. [43] The first integrated circuit or “chip” came to the market at the end of the 1950s, and vacuum pumps again played an important role in their production. These early ...
Most general pumps can increase as well as decrease the pressure of a gas; however, this category contains pumps that are usually exclusively used to decrease pressure. Wikimedia Commons has media related to Vacuum pumps .
A partial vacuum may be generated by increasing the volume of a container. To continue evacuating a chamber indefinitely without requiring infinite growth, a compartment of the vacuum can be repeatedly closed off, exhausted, and expanded again. This is the principle behind a positive displacement pump, for example the manual water pump. Inside ...
DOAS air handling unit with heat recovery wheel and passive dehumidification. A dedicated outdoor air system (DOAS) is a type of heating, ventilation and air-conditioning system that consists of two parallel systems: a dedicated system for delivering outdoor air ventilation that handles both the latent and sensible loads of conditioning the ventilation air, and a parallel system to handle the ...
Later thermionic vacuum tubes, mostly miniature style, some with top cap connections for higher voltages. A vacuum tube, electron tube, [1] [2] [3] thermionic valve (British usage), or tube (North America) [4] is a device that controls electric current flow in a high vacuum between electrodes to which an electric potential difference has been applied.
A. Baldwin Wood, standing at center, at New Orleans pumping station, 1915 Patent diagram for Wood Screw Pump (page 1) Patent diagram for Wood Screw Pump (page 2). Albert Baldwin Wood (December 1, 1879 – May 10, 1956) was an inventor and engineer from New Orleans, Louisiana.
Johnny Reid Edwards [1] (born June 10, 1953) is an American lawyer and former politician who represented North Carolina in the United States Senate from 1999 to 2005. A member of the Democratic Party, he was the vice presidential nominee under US Senator John Kerry in the 2004 presidential election.
Nole Floyd "Nokie" Edwards (May 9, 1935 – March 12, 2018) was an American musician and member of the Rock and Roll Hall of Fame. He was primarily a guitarist , best known for his work with The Ventures , [ 1 ] and was known in Japan as the 'King of Guitars' .