bellows-sealed

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• bellows — A sealed, accordion type chamber (gas filled or vacuum) which expands and contracts in accordance with temperature changes or provides a seal during movement of parts. Used as an air conditioning control device on many systems. Also see air… …   Dictionary of automotive terms

• Metal bellows — are elastic vessels that can be compressed when pressure is applied to the outside of the vessel, or extended under vacuum. When the pressure or vacuum is released, the bellows will return to its original shape (provided the material has not been …   Wikipedia

• Pressure measurement — The construction of a bourdon tube gauge, construction elements are made of brass Many techniques have been developed for the measurement of pressure and vacuum. Instruments used to measure pressure are called pressure gauges or vacuum gauges. A… …   Wikipedia

• metallurgy — metallurgic, metallurgical, adj. metallurgically, adv. metallurgist /met l err jist/ or, esp. Brit., /meuh tal euhr jist/, n. /met l err jee/ or, esp. Brit., /meuh tal euhr jee/, n. 1. the technique or science of working or heating metals so as… …   Universalium

• List of Nike missile locations — Nike Missile family, From left, MIM 3 Nike Ajax, MIM 14 Nike Hercules, LIM 49 Nike Zeus. Map of all coordinates from Google …   Wikipedia

• Washing machine — This article is about the laundry cleaning apparatus. For the Sonic Youth album, see Washing Machine (album). A typical modern front loading washing machine Irreler Bauerntradition shows an early Miele was …   Wikipedia

• photography, technology of — Introduction       equipment, techniques, and processes used in the production of photographs.  The most widely used photographic process is the black and white negative–positive system (Figure 1 >). In the camera the lens projects an image of… …   Universalium

• Expansion joint — For the railway specific expansion joints, see Breather switch. Expansion joint on a bridge An expansion joint or movement joint is an assembly designed to safely absorb the heat induced expansion and contraction of various construction materials …   Wikipedia

• Mechanical fan — Household electric box fan with a propeller style blade A mechanical fan is a machine used to create flow within a fluid, typically a gas such as air. A fan consists of a rotating arrangement of vanes or blades which act on the air. Usually, it… …   Wikipedia

• Hydraulic accumulator — A hydraulic accumulator is an energy storage device. It is a pressure storage reservoir in which a non compressible hydraulic fluid is held under pressure by an external source. That external source can be a spring, a raised weight, or a… …   Wikipedia

• Negative Syndicate — A Negative Syndicate (ネガティブシンジケート, Negatibu Shinjikēto?) is any of the fictional antagonistic organizations who seek out the Precious in the 30th Super Sentai Series GoGo Sentai Boukenger. This title is given to them by the Search Guard Successor …   Wikipedia