Dispensing – With discharge assistant – With movable nozzle interconnected therewith
Patent
1995-05-31
1997-10-07
Shaver, Kevin P.
Dispensing
With discharge assistant
With movable nozzle interconnected therewith
2223211, 222340, B67D 542
Patent
active
056738242
ABSTRACT:
A dosing pump for liquids has a cylindrical chamber for receiving the liquid to be dispensed, a piston located in the chamber slidable between a rest and a dispensing position. A valve near the inlet of the cylindrical chamber closes the chamber to block incoming liquid flow when the pump is moved to the dispensing position and opens for drawing liquid into the chamber as the piston returns to the rest position. A valve near the outlet of the pump allows liquid flow to the outlet during the dispensing stroke and blocks the outlet during the return stroke. The pump is formed of one or more compatible plastic materials which are recyclable and compatible so that the entire pump may be recycled as a unit without disassembly and sorting of parts.
REFERENCES:
patent: 3223292 (1965-12-01), Keeney et al.
patent: 3228571 (1966-01-01), O'Donnell et al.
patent: 3359917 (1967-12-01), Cooprider
patent: 3362344 (1968-01-01), Duda
patent: 3463093 (1969-08-01), Pfeiffer et al.
patent: 4071172 (1978-01-01), Balogh
patent: 4252507 (1981-02-01), Knickerbocker
patent: 5096094 (1992-03-01), Guilbert
patent: 5152435 (1992-10-01), Stand et al.
patent: 5363993 (1994-11-01), Mascitelli et al.
Shaver Kevin P.
TAPLAST SRL
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