Dispensing closure with pump parts and container using the same

Claim 2

In the combination of a deformable container and a dispensing closure used in removing contents from within said container, said closure having a cap with an opening extending therethrough and a spout movably mOunted on said cap so as to be capable of being moved between an open position in which said spout is in communication with said opening and a closed position in which said spout seals off said opening, the improvement which comprises: a vent extending through said closure, a flow actuated inlet check valve means leading into said container mounted on said closure in communication with said vent, said vent and said inlet check valve means serving to permit air to enter the interior of said container, a flow actuated outlet check valve means leading from the interior of said container to said opening mounted on said closure, a tube means attached to said closure in communication with said outlet check valve means and leading to the bottom of said container, said deformable container being capable of being reduced in internal dimension when force is applied to it and being capable of returning to its original dimension when force is no longer applied to it, said deformable container and both of said check valve means cooperating to serve as a pump to dispense the contents of said container through said tube means, said outlet check valve means and said spout when said spout is in said open position and to draw air into said container through said inlet check valve means to replace the dispensed contents as pressure is applied to said container and then released, said spout closing off said vent and said opening when said spout is in said closed position, said vent being in communication with the interior of said spout when said spout is in said open position.

Claim 3

A combination as claimed in claim 1 including: means for holding said spout against inadvertent movement when said spout is in said closed position.

Claim 4

A combination as claimed in claim 1 including: means for holding said spout so that said spout extends downwardly and outwardly when in said open position.

Claim 5

A combination as claimed in claim 1 wherein: both of said check valve means are mounted on said closure so as to form a part of said closure and are located generally within the interior of said closure.

Claim 6

A combination as claimed in claim 1 including: a fitment having a surface with at least one port extending therethrough and having a valve seat formed therein located on said closure and forming a part of said closure, said port being in communication with said vent, said valve seat being in communication with said outlet opening, two movable valve member means located on said fitment, one of said means serving to normally seal off said port so as to define in connection with said port said inlet check valve means, the other of said movable means seating against said seat so as to define in conjunction with said seat said outlet check valve means.

Claim 7

A combination as claimed in claim 5 wherein: said first movable valve member is an elastomeric member mounted on said fitment so as to normally cover said port, said second movable valve member comprises a ball located within said fitment and constrained against movement by said fitment and said cap.

Claim 8

A combination as claimed in claim 5 including: said first movable valve member is an elastomeric member mounted on said fitment so as to normally cover said port, said second movable valve member comprises a ball located within said fitment and constrained against movement by said fitment and said cap, a tube attached to said fitment extending to the bottom of said container and placing the bottom of said container in communication with said outlet check valve means, said spout fits against said vent so as to close off said vent when said spout is in said closed position, and means for holding said spout so that said spout extends downwardly and outwardly when in said open position, means for holding said spout against inadvertent movement when said spout is in said closed position.

Claim 9

A dispensing closure having a closuRe cap with an opening extending therethrough and a spout movably mounted on said cap so as to be capable of being moved between an open position in which said spout is in communication with said opening and a closed position in which said spout seals off said opening, in which the improvement comprises: a vent extending through said cap, a flow actuated inlet check valve means mounted on said cap within the interior of said cap and having an inlet in communication with said vent, said inlet check valve means leading into the interior of said cap, a flow actuated outlet check valve means mounted on said cap within the interior of said cap and having an outlet in communication with said opening, said outlet check valve means leading from the interior of said cap to said opening, said spout closing off said vent and said opening when said spout is in said closed position, said vent being open to the exterior of said cap and said opening being in communication with the interior of said spout when said spout is in said open position, means for attaching a tube to said cap so that said tube is in communication with said outlet check valve means within the interior of said cap, said closure being capable of being used with a deformable container as a pump.

Claim 10

A dispensing closure having a closuRe cap with an opening extending therethrough and a spout movably mounted on said cap so as to be capable of being moved between an open position in which said spout is in communication with said opening and a closed position in which said spout seals off said opening, in which the improvement comprises: a vent extending through said cap, a flow actuated inlet check valve means mounted on said cap within the interior of said cap and having an inlet in communication with said vent, said inlet check valve means leading into the interior of said cap, a flow actuated outlet check valve means mounted on said cap within the interior of said cap and having an outlet in communication with said opening, said outlet check valve means leading from the interior of said cap to said opening, said spout closing off said vent and said opening when said spout is in said closed position, said vent being open to the exterior of said cap and said opening being in communication with the interior of said spout when said spout is in said open position, means for attaching a tube to said cap so that said tube is in communication with said outlet check valve means within the interior of said cap, said closure being capable of being used with a deformable container as a pump.

Claim 11

A dispensing closure having a closure cap with an opening extending therethrough and a spout movably mounted on said cap so as to be capable of being moved between an open position in which said spout is in communication with said opening and a closed position in which said spout seals off said opening, in which the improvement comprises: a vent extending through said closure, said vent being sealed by said spout when said spout is in said closed position, an inlet check valve means mounted on said cap within the interior of said cap in communication with said vent, an outlet check valve means mounted on said cap within the interior of said cap in communication with said opening, said vent and said both of said check valve means enabling said closure to be utilized in connection with a deformable container as a pump, a fitment having a surface with at least one port extending therethrough and having a valve seat formed therein located on said closure so that said valve seat is in communication with said opening and said port is in communication with said vent, a flexible member capable of fitting against said surface and capable of bending away from said surface when pressure is applied to it and then moving against said surface so as to form a seal therewith when air pressure is no longer applied to it located on said fitment so as to engage said surface, said surface and said flexible member serving as said inlet check valve means and permitting air to be drawn through said cap into the interior of said closure, a ball capable of being moved within said fitment located within said fitment so as to be capable of normally seating against said valve seat, said ball and said valve seat constituting said outlet check valve means and permitting the contents of a container to be dispensed out through said cap through said spout, resilient latch means for holding said spout in said closed position, and means for holding said spout so that said spout extends downwardly and outwardly when in said open position.

Claim 12

A dispensing closure having a closure cap with an opening extending therethrough and a spout movably mounted on said cap so as to be capable of being moved between an open position in which said spout is in communication with said opening and a closed position in which said spout seals off said opening, in which the improvement comprises: a vent extending through said closure, said vent being sealed by said spout when said spout is in said closed position, an inlet check valve means mounted on said cap within the interior of said cap in communication with said vent, an outlet check valve means mounted on said cap within the interior of said cap in communication with said opening, said vent and said both of said check valve means enabling said closure to be utilized in connection with a deformable container as a pump, a fitment having a surface with at least one port extending therethrough and having a valve seat formed therein located on said closure so that said valve seat is in communication with said opening and said port is in communication with said vent, a flexible member capable of fitting against said surface and capable of bending away from said surface when pressure is applied to it and then moving against said surface so as to form a seal therewith when air pressure is no longer applied to it located on said fitment so as to engage said surface, said surface and said flexible member serving as said inlet check valve means and permitting air to be drawn through said cap into the interior of said closure, a ball capable of being moved within said fitment located within said fitment so as to be capable of normally seating against said valve seat, said ball and said valve seat constituting said outlet check valve means and permitting the contents of a container to be dispensed out through said cap through said spout, resilient latch means for holding said spout in said closed position, and means for holding said spout so that said spout extends downwardly and outwardly when in said open position.

Claim 13

A dispensing closure as claimed in claim 9 wherein: said cap has a dependent skirt, said spout is rotatably mounted on said skirt so as to be spaced from the top of said skirt, and including means for holding said spout so that it extends outwardly and downwardly from said skirt when said spout is in said open position.