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Correction pen. A correction fluid is an opaque, usually white fluid applied to paper to mask errors in text. Once dried, it can be handwritten or handdrawn upon. It is typically packaged in small bottles, with lids attached to brushes (or triangular pieces of foam) that dip into the fluid. The brush applies the fluid to the paper.
Michael Nesmith. Parent (s) Jesse McMurray. Christine Duval McMurray. Bette Nesmith Graham (March 23, 1924 – May 12, 1980) was an American typist, commercial artist, and the inventor of the correction fluid Liquid Paper. She was the mother of musician and producer Michael Nesmith of The Monkees.
The basic working principle of an air-operated double diaphragm pump. Cross-section sketch of diaphragm fuel pump Air-operated double diaphragm pump. A diaphragm pump (also known as a Membrane pump) is a positive displacement pump that uses a combination of the reciprocating action of a rubber, thermoplastic or teflon diaphragm and suitable valves on either side of the diaphragm (check valve ...
Warman centrifugal pump in a coal preparation plant application. A pair of centrifugal pumps for circulating hot water within a hydronic heating system. Centrifugal pumps are used to transport fluids by the conversion of rotational kinetic energy to the hydrodynamic energy of the fluid flow. The rotational energy typically comes from an engine ...
Peristaltic pump in motion. A peristaltic pump, also commonly known as a roller pump, is a type of positive displacement pump used for pumping a variety of fluids. The fluid is contained in a flexible tube fitted inside a circular pump casing. Most peristaltic pumps work through rotary motion, though linear peristaltic pumps have also been made.
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In a turbomolecular pump, a rapidly spinning fanrotor 'hits' gas molecules from the inlet of the pump towards the exhaust in order to create or maintain a vacuum. Operating principles. [edit] Most turbomolecular pumps employ multiple stages, each consisting of a quickly rotating rotor bladeand stationary stator bladepair. The system is an axial ...
Oil pump from a scooter engine. A gear pump uses the meshing of gears to pump fluid by displacement. [ 1] They are one of the most common types of pumps for hydraulic fluid power applications. The gear pump was invented around 1600 by Johannes Kepler. [ 2] Gear pumps are also widely used in chemical installations to pump high- viscosity fluids.