EM-actuated liquid dispenser

Details EM-actuated liquid dispenser EM-actuated liquid dispenser

2005-11-15

2005-11-15

Kaufman, Joseph A. (Department: 3754)

Dispensing

Motor operated outlet element

C222S564000

Reexamination Certificate

active

06964358

ABSTRACT:
A liquid dispenser that dispenses liquid via the action of a collapsing tube. The illustrative dispenser includes a liquid-carrying tube, a wire, and a magnet. The magnet is shaped to receive the tube and the wire between an elongated North pole and an elongated South pole. A pulse of current of controlled amperage and duration is sent through the wire, which causes it to deflect. This causes the tube to collapse with the result that a portion of the liquid that is contained in the tube is ejected.

REFERENCES:
patent: 3189223 (1965-06-01), Mackal
patent: 4100550 (1978-07-01), Elmqvist et al.
patent: 4240081 (1980-12-01), Devitt
patent: 5009046 (1991-04-01), Johinke
patent: 5685459 (1997-11-01), Wardle
patent: 5848751 (1998-12-01), Wang et al.
patent: 6357719 (2002-03-01), Yakovenko

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