New and technically original idea - hand water pump with a pendulum - provides alleviation of work, because it is enough to move the pendulum occasionally with a little finger to pump the water, instead of large swings. Using the minimum of human strength in comparison to present classic hand water pumps enables efficient application in irrigation of smaller lots, for water-wells and extinguishing fires even by old people and children, which was proved by a large number of interested future consumers during the presentations.
Hand water pump with a pendulum for pumping water out from wells or reservoirs consists of a cylinder (1) with a piston (2), lever system (3), a seesaw (4), a pendulum (5), a reservoir (6) and output water pipe (7).
To get the water running out of the pump, the pendulum needs to be out of balance. After that, based on gravitational potential, the piston starts oscillating and the continuous stream of water is coming out of the output pipe. The pendulum should be occasionally pushed, to maintain the amplitude i.e. the stream of water.
The pump works well with all sizes of the pendulum, but mainly with the amplitude of 90°.
The advantage of this invention compared to present hand pump solutions are: less force to start the pump, less water consumption, both arms can be used to fetch the water.
The invention is applicable on other devices that use lever mechanisms, such as a hand press etc.
It is possible to pump out a 1200 litres of water per hour, without any fatigue and continue with the pumping. Both arms are free for fetching water, and both elderly and children can use it, since maintaining the oscillation of the pendulum does not request any special training or dexterity.
Whereas typical hand pumps require significant effort and an average person can use the pump continuously only for several minutes, the hand water pump needs the minimum of the effort, because it is only necessary to swing the pendulum and maintain the oscillation for several hours, without any fatigue.
All details on the hand water pump with a pendulum and the information can be provided by the author, Veljko Milković, who is willing for any form of cooperation with all potential strategic partners and customers for production and application. So far, there was a lot of interest for the application of the hand water pump with a pendulum both in domestic and foreign markets, as well as for further development of the product.