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2. Hand pump - Wikipedia

   en.wikipedia.org/wiki/Hand_pump

   Cross section and details of a pitcher pump Animation of a suction hand pump. On the up stroke of the piston the foot valve opens and suction brings water into the pump head. On the following down stroke of the piston the valve on the piston opens up and allows water to flow above the piston.

3. Suction (medicine) - Wikipedia

   en.wikipedia.org/wiki/Suction_(medicine)

   In surgery suction can be used to remove blood from the area being operated on to allow surgeons to view and work on the area. Suction may also be used to remove blood that has built up within the skull after an intracranial hemorrhage. [2] Suction devices may be mechanical hand pumps or battery or electrically operated mechanisms.

4. Bag valve mask - Wikipedia

   en.wikipedia.org/wiki/Bag_valve_mask

   The bag valve mask concept was developed in 1956 by the German engineer Holger Hesse and his partner, Danish anaesthetist Henning Ruben, following their initial work on a suction pump. [3] Hesse's company was later renamed Ambu A/S, which has manufactured and marketed the device since 1956. An Ambu bag is a self-inflating bag resuscitator from ...

5. Treadle pump - Wikipedia

   en.wikipedia.org/wiki/Treadle_Pump

   A treadle pump is a human-powered suction pump that sits on top of a well and is used for irrigation. [1] It is designed to lift water from a depth of seven metres or less. The pumping is activated by stepping up and down on a treadle, which are levers, which drive pistons, creating cylinder suction that draws groundwater to the surfa

6. Pump - Wikipedia

   en.wikipedia.org/wiki/Pump

   Reciprocating hand pumps were widely used to pump water from wells. Common bicycle pumps and foot pumps for inflation use reciprocating action. These positive-displacement pumps have an expanding cavity on the suction side and a decreasing cavity on the discharge side.

7. Desoldering - Wikipedia

   en.wikipedia.org/wiki/Desoldering

   Electrically operated pumps are used for several purposes in conjunction with a hand-held head connected by a tube. Suction pumps are used to suck away molten solder, leaving previously joined terminals disconnected. They are primarily used to release through-hole connections from a PCB. The desoldering head must be designed so that the ...