Dispensing – Collapsible wall-type container – With casing or support
Patent
1993-05-11
1994-05-17
Kashnikow, Andres
Dispensing
Collapsible wall-type container
With casing or support
222205, 222494, 222496, 141 21, 141347, 141349, B67D 506
Patent
active
053120191
ABSTRACT:
A freshness keeping cup including a cup body and a check valve disposed therein. A U-shaped fixing inner sleeve member and a fixing outer sleeve member are secured with the lower portion of the cup body. A leakproof ring and a top flange of a soft bellows member are clamped between the bottom of the inner sleeve member and a top surface of an upper slide sleeve of a slide assembly. An outer lower surface of a top flange of the upper slide sleeve abuts against an inner upper surface of the bottom portion of the outer sleeve member. A top flange of the middle slide sleeve is engaged in a bottom flange of the upper slide sleeve and a top flange of the lower slide sleeve is engaged in a bottom flange of the middle slide sleeve. An upward inward projection is formed on the top flange of the lower slide sleeve. Engaging grooves are formed on lower inner portion of the lower slide sleeve for engaging with corresponding engaging hooks of a bottom cover for securing the same. The bellows member is disposed within the upper slide sleeve and the middle slide sleeve for containing a liquid, whereby when the bottom cover is pressed upward, the liquid is permitted to flow through the check valve into the cup body for drinking.
REFERENCES:
patent: 1948987 (1934-02-01), Laufe
patent: 2099595 (1937-11-01), Brown
patent: 3246807 (1966-04-01), Micallef
patent: 3705668 (1972-12-01), Schwartzman
patent: 3873003 (1975-03-01), Seiferth et al.
patent: 4020975 (1977-05-01), Stauffer
patent: 4146154 (1979-03-01), Mastman
patent: 4413757 (1983-11-01), Adler
patent: 5033631 (1991-07-01), Nightingale
Kashnikow Andres
Pomrening Anthoula
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