Pumps – Inertia-type pumping member or drive means
Patent
1981-09-18
1983-11-22
Freeh, William L.
Pumps
Inertia-type pumping member or drive means
417550, F04B 1700, F04B 3500, F04B 2104
Patent
active
044165897
ABSTRACT:
A positive displacement liquid pump having a free-moving weight mass spaced from and oscillatably positioned concentrically within a cylindrical housing is disclosed. A pair of cooperating one-way valves, one valve communicating with a central passage defined by the weight mass while the other valve communicates with an inlet to the housing, coact to draw in fluid or liquid from a supply source. As the oscillatable weight mass moves away from the inlet, the one-way inlet valve opens, filling a chamber behind the weight mass. The one-way valve in the weight mass simultaneously closes enabling the weight mass to drive fluid out of the reservoir chamber at an exit end of the housing, the valves acting oppositely when the weight mass oscillates back toward the housing inlet. The free-moving weight mass suspended within the pump housing is set in motion by the oscillatory motion of a vibration source without direct mechanical actuation of the device from a power source. The movement of the oscillating weight mass may be amplified by the addition of a coil spring or a resilient rubber "bumper" at one or both ends of the piston weight mass.
REFERENCES:
patent: 1840759 (1932-01-01), Wheeler
patent: 3077162 (1963-02-01), Banerian
patent: 3091954 (1963-06-01), Bullock et al.
patent: 3116695 (1964-01-01), Faller
patent: 3190266 (1965-06-01), Malec
Freeh William L.
Upton Robert G.
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