Cylinder and valve structures for liquid-dispensing containers

Details Cylinder and valve structures for liquid-dispensing containers Cylinder and valve structures for liquid-dispensing containers

2005-11-08

2005-11-08

Mar, Michael (Department: 3754)

Dispensing

With discharge assistant

With movable nozzle interconnected therewith

C222S386000, C222S321800, C222S256000

Reexamination Certificate

active

06962273

ABSTRACT:
A liquid-dispensing structure includes: an outer cylinder with a one-way valve at its lower end to allow a liquid to flow into the outer cylinder; a hollow piston being slidable inside the outer cylinder and having a pair of liquid-tight portions formed with circular convex portions around its outer circumferential surface in positions apart in an axial direction; and an inner cylinder for dispensing a liquid, which reciprocates inside the outer cylinder so that the piston moves in a piston-sliding area of the inner cylinder having an opening through which the liquid flows. The opening is closed when the piston is at a lower position and is opened when the piston is at an upper position.

REFERENCES:
patent: 3187960 (1965-06-01), Gorman
patent: 4050860 (1977-09-01), Beres
patent: 4087025 (1978-05-01), Steiman
patent: 5002207 (1991-03-01), Giuffredi
patent: 5152434 (1992-10-01), Birmelin
patent: 5819990 (1998-10-01), Cimentepe et al.
patent: 6375045 (2002-04-01), Ki
patent: 6471097 (2002-10-01), Hermouet et al.
patent: 2002/0166876 (2002-11-01), Masuda
patent: 199 22 340 C 1 (2001-01-01), None
patent: 1 364 720 (2003-11-01), None
patent: 2001-179139 (2001-07-01), None
patent: 2002-066401 (2002-03-01), None
patent: 20-0241101 (2001-07-01), None

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