US 7,350,673 B2Granted

Metered dose squeeze dispenser

AssigneeGlynnTech, Inc.

InventorsKenneth P. Glynn, Stuart W. DeJonge

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Abstract

A liquid metered dispensing squeeze bottle includes: (a.) a squeezable container having an opening for dispensing liquid therefrom at one end and a bottom at the other end; (b.) a nonflexible trap chamber of a predetermined volume, connected to the opening of the container; (c.) a dip tube, and (d.) a one way valve at the bottom of the dip tube. In some embodiments, the one way valve system includes a generally inverted trapezoidal valve housing with tapered opposing sidewalls with an inlet orifice in each of said sidewalls, and an inverted trapezoidal valve having opposing slide valve ends, with a rest position when the bottle is upright wherein both inlet orifices are closed, a second position when the bottle is inverted 180 degrees wherein both inlet orifices are open to air, a third position when the bottle is upright and squeezed wherein at least one of the inlet orifices is open to air, and a fourth position when the bottle is rotated 90 degrees from upright wherein one of the inlet orifices is open to air and the other is closed.

Claims18

Dependent claims

A liquid metered dispensing bottle, comprising:

(a.) a squeezable container having an opening for dispensing liquid therefrom at one end and a bottom at the other end;
(b.) a nonflexible trap chamber of a predetermined volume, connected to said opening of said container, said trap chamber having a lower end which is inserted into said container opening and having an inlet orifice extending from said lower end and into said container, said trap having an upper end with at least one dispensing orifice:
(c.) a dip tube, said dip tube having an upper end extending from said inlet orifice and extending downwardly into said container, said dip tube having a lower end at or near the bottom of said container;
and,
(d.) a one way valve system connected to said lower end of said dip tube which permits liquid to flow from the container into said dip tube but not from said dip tube to said container, wherein said one way valve system includes:
(i.) a valve housing with two opposing sidewalls and two inlet orifices, said two inlet orifices being a first inlet orifice being located on one of said two opposing sidewalls and a second inlet orifice being located on the other of said two opposing sidewalls, each of said two opposing sidewalls being non-vertical and non-horizontal on their insides, and
(ii.) two slide valves, one being located at said first inlet orifice and the other being located at said second inlet orifice, each of said two slide valves having a rest position when said bottle is upright wherein both inlet orifices is closed, and having a second position when said bottle is inverted 180 degrees wherein both inlet orifices are open to air, and having a third position when said bottle is upright and squeezed wherein at least one of said inlet orifices are open to air and having a fourth position when said bottle is rotated 90 degrees from upright wherein one of said inlet orifices is open to air and the other of said orifices is closed.

4 more elements

A liquid metered dispensing bottle, comprising:

(a.) a squeezable container having an opening for dispensing liquid therefrom at one end and a bottom at the other end;
(b.) a nonflexible trap chamber of a predetermined volume, connected to said opening of said container, said trap chamber having a lower end which is inserted into said container opening and having an inlet orifice extending from said lower end and into said container, said trap having an upper end with at least one dispensing orifice:
(c.) a dip tube, said dip tube having an upper end extending from said inlet orifice and extending downwardly into said container, said dip tube having a lower end at or near the bottom of said container;
and,
(d.) a one way valve system connected to said lower end of said dip tube which permits liquid to flow from the container into said dip tube but not from said dip tube to said container, wherein said one way valve system includes:
(i.) a generally inverted trapezoidal valve housing with tapered opposing sidewalls with an inlet orifice in each of said sidewalls, and
(ii.) an inverted trapezoidal valve having opposing slide valve ends, and having a rest position when said bottle is upright wherein both inlet orifices are closed, and having a second position when said bottle is inverted 180 degrees wherein both inlet orifices are open to air, and having a third position when said bottle is upright and squeezed wherein at least one of said inlet orifices are open to air and having a fourth position when said bottle is rotated 90 degrees from upright wherein one of said inlet orifices is open to air and the other of said orifices is closed.

4 more elements

Dependencies are inferred from the claim text.