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Hand pumps are manually operated pumps; ... very simple pumps with plastic or rubber bulb with flap valve at each end are used for emptying fuel or water cans into ...
A typical Mark II hand pump in India. The pump was designed in the 1970s in a joint effort between the Government of India, UNICEF, and The World Health Organization (WHO) to address the severe drought and a water shortage affecting India during that period and to prevent evacuation of villages to refugee camps. Prior to the pump's design, poor ...
The most popular soap dispensers of this type are plastic pump bottles, many of which are disposable. William Quick patented liquid soap on August 22, 1865. Minnetonka Corporation introduced the first modern liquid soap in 1980 and bought up the entire supply of plastic pumps used in their dispensers to delay competition entering the market. [1]
Different types of pumps are suitable for different applications, for example: a pump's maximum lift height also determines the applications it can be used for. Low-lift pumps are only suitable for the pumping of surface water (e.g., irrigation, drainage of lands, ...), while high-lift pumps allow deep water pumping (e.g., potable water pumping ...
The first known mechanical shower, operated by a hand pump, was patented in England in 1767 by William Feetham, a stove maker from Ludgate Hill in London. [citation needed] His shower contraption used a pump to force the water into a vessel above the user's head and a chain would then be pulled to release the water from the vessel. Although the ...
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