Dispensing – Gravity or inertia operated movable outlet elements
Patent
1979-08-02
1981-04-14
Scherbel, David A.
Dispensing
Gravity or inertia operated movable outlet elements
222571, B65D 4902, B65D 2540
Patent
active
042614848
ABSTRACT:
A non-return valve unit for a bottle having a mechanism for preventing dripping and for giving a controlled discharge of liquid from the bottle, suitable for use with any type of bottle neck by insertion in the said neck and especially for bottles adapted to receive "pilfer-proof" caps. The valve unit consists of only three elements made up generally of a cylindrical slightly frusto-conical body having a brim for preventing dripping and having a septum in its interior where the seat of a generally circular valve is positioned. Radial septa which support an annular guide for the stem of a check or retention valve, form a component part of this septum. An upper chamber in the body houses a pouring device of a frusto-conical shape. The pouring device has a cylindrical wall internally supported by radial septa which ends in a frusto-conical surface; and provides together with the inner cylindrical surface of the pourer a circular area of discharge. The pouring device also provides guide ridges for guiding the movement of the upper stem of the retention valve which, on moving upward rests against the lower edge of the said inner cylindrical wall. The shape of the base of retention valve being the same as that of the inner frusto-conical surface to which the assembly is connected, providing, when the valve rises for the discharge of the liquid by tilting the bottle with the inner wall of the pourer, a discharge circular space allowing a controlled discharge free of turbulence.
REFERENCES:
patent: 1320904 (1919-11-01), O'Neill et al.
patent: 1861396 (1932-05-01), Isbell
patent: 2535882 (1950-12-01), Villane et al.
patent: 3311275 (1967-03-01), Gibson
patent: 3484819 (1969-12-01), Tanner
patent: 3794202 (1974-02-01), Unger
DaCosta Leonidio J.
Fonseca Jose M.
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