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2. Water well pump - Wikipedia

   en.wikipedia.org/wiki/Water_well_pump

   Injector, a jet-driven pump; Mechanical or rotary lobe pump requiring mechanical parts to pump water; Solar-powered water pump; Pump driven by air as used by the Amish; Pump driven by air as used in the Australian outback; Manual pumpless or hand pump wells requiring a human operator; The pump replaces the use of a bucket and pulley system to ...

3. Hand pump - Wikipedia

   en.wikipedia.org/wiki/Hand_pump

   A chain pump is a type of water pump that uses a chain to move water from one place to another. It works on the principle of a continuous loop of chain moving through a series of sprockets, with attached buckets that lift water as the chain passes over the top sprocket and discharge it as the chain reaches the bottom. [12]

4. Submersible pump - Wikipedia

   en.wikipedia.org/wiki/Submersible_pump

   A 0.75 HP bore-well submersible pump which had been used to pump groundwater One style of submersible pump for industrial use. Outlet pipe and electrical cable not connected. A submersible pump (or electric submersible pump (ESP) is a device which has a hermetically sealed motor close-coupled to the pump body. The whole assembly is submerged in ...

5. 12-volt battery - Wikipedia

   en.wikipedia.org/wiki/12-volt_battery

   12-volt battery may refer to: Automotive battery; Lantern battery; A23 battery, for RF transmitters This page was last edited on 23 August 2019, at 15:27 (UTC) ...

6. Van's Aircraft RV-12 - Wikipedia

   en.wikipedia.org/wiki/Van's_Aircraft_RV-12

   The Van's RV-12 is an American two-seat, single-engine, low-wing homebuilt airplane eligible for the U.S. E-LSA category, sold in kit form and as a complete ready-to-fly aircraft by Van's Aircraft of Aurora, Oregon. [4] [5] The first RV-12, built by Richard VanGrunsven, at Oshkosh 2008. The RV-12 had its first flight on November 9, 2006. [3]

7. Artificial cardiac pacemaker - Wikipedia

   en.wikipedia.org/wiki/Artificial_cardiac_pacemaker

   Each pulse causes the targeted chamber(s) to contract and pump blood, [3] thus regulating the function of the electrical conduction system of the heart. The primary purpose of a pacemaker is to maintain an even heart rate , either because the heart's natural cardiac pacemaker provides an inadequate or irregular heartbeat, or because there is a ...