Fluid dispensing pump

Details Fluid dispensing pump Fluid dispensing pump

1993-05-07

1995-10-03

Gorgos, Kathryn

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204266, 204283, F04B 1900

Patent

active

054549221

ABSTRACT:
Disclosed is a self-contained device which continuously dispenses a packaged fluid. The device is particularly suited for applications where several months may lapse before performance is manually initiated, after which a consistent steady flow is required for an extended period until the packaged fluid is exhausted. The device is also particularly suited for applications where ease of fabrication and where availability of materials are important factors. A button cell battery provides a driving force to reduce atmospheric oxygen at a simple air cathode, ions are transported through an ion-exchange membrane, and oxygen gas is released at a simple anode. The effective transport of oxygen gas pressurizes a chamber resulting in fluid contained in a flexible bladder within the chamber to be forced through an outlet. This device is intended to be very low in cost and thus disposable.

REFERENCES:
patent: 4469579 (1984-09-01), Covitch et al.
patent: 4522698 (1985-06-01), Maget
patent: 4902278 (1990-02-01), Maget et al.
"Bifunctional electrodes for integrated water-electrolysis and hydrogen-oxygen fuel cell with a solid polymer electrolyte," J. Ahn, R. Holze, Journal of Applied Electrochemistry, vol. 22 (Feb., 1992) pp. 1167-1174.

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