Pour spout lid

Claim 2

A closure with a rim adapted to engage the top of a container comprising: a generally planar central area attached to said rim, a centrally positioned load applying area connected to said planar central area and positioned at an elevation different than said central area, a plurality of ribs connecting said load applying area to said rim, a valve positioned between said ribs and attached in cantilevered fashion to said load applying area whereby said valve can be opened when pressure is applied to said load applying area.

Claim 3

A closure as claimed in claim 1 wherein said planar central area is positioned below the topmost portion of said rim.

Claim 4

A closure as claimed in claim 2 wherein said areas are connected to each other by a wall inclined with respect to said areas.

Claim 5

A closure with a rim adapted to engage the top of a container comprising: a generally planar central area attached to said rim and positioned below the topmost portion of said rim, a centrally positioned load applying area connected to said planar central area by a wall inclined with respect to said planar central area and the top of said load applying area, a plurality of spaced apart ribs formed in said planar central area and connected at one end to said rim and connected at the other end to said wall, a valve positioned between said ribs with one end attached to said wall and its free end positioned adjacent said rim, whereby said valve moves to an open position when a downward force is applied to said load applying area and moves to a closed position when the applied force is removed.

Claim 6

A closure with a rim adapted to engage the top of a container comprising: a generally planar central area attached to said rim and positioned below the topmost portion of said rim, a centrally positioned load applying area connected to said planar central area by a wall inclined with respect to said planar central area and the top of said load applying area, a plurality of spaced apart ribs formed in said planar central area and connected at one end to said rim and connected at the other end to said wall, a valve positioned between said ribs with one end attached to said wall and its free end positioned adjacent said rim, whereby said valve moves to an open position when a downward force is applied to said load applying area and moves to a closed position when the applied force is removed.

Claim 7

A closure as claimed in claim 4 wherein said valve has a curved central section to provide rigidity throughout its length.

Claim 8

A closure as claimed in claim 4 wherein said valve contains a planar rim in juxtaposed relationship to the planar area of said closure.

Claim 9

A closure as claimed in claim 5 wherein the valve is of convex configuration on its top side.

Claim 10

A closure as claimed in claim 4 wherein a die cut is positioned adjacent the sides and free end of said valve.

Claim 11

A closure as claimed in claim 4 wherein a die cut is placed in that section of the inclined wall which is positioned between said valve and said ribs.

Claim 12

A closure made of resilient plastic material having a rim adapted for coacting with the top edge of an open container, an upwardly extending load applying area positioned in the central area of the closure and connected by an inclined wall to first and second planar areas, at least two reinforcement ribs connected to said centrally positioned load applying area and the peripheral rim of said closure, said first planar area extending over the greater portion of the closure top and attached to and surrounding the greater portion load applying area, a second smaller planar area situated between said ribs, a valve positioned between said ribs and attached at one end to said load applying area, said valve containing a planar rim in juxtaposed position with said second planar area, a die cut in said second planar area which separates said valve from said second planar area except where said valve is joined to said load applying area, thus permitting said valve to move to an inward position when pressure is applied to said load applying area.

Claim 13

A closure made of resilient plastic material having a rim adapted for coacting with the top edge of an open container, an upwardly extending load applying area positioned in the central area of the closure and connected by an inclined wall to first and second planar areas, at least two reinforcement ribs connected to said centrally positioned load applying area and the peripheral rim of said closure, said first planar area extending over the greater portion of the closure top and attached to and surrounding the greater portion load applying area, a second smaller planar area situated between said ribs, a valve positioned between said ribs and attached at one end to said load applying area, said valve containing a planar rim in juxtaposed position with said second planar area, a die cut in said second planar area which separates said valve from said second planar area except where said valve is joined to said load applying area, thus permitting said valve to move to an inward position when pressure is applied to said load applying area.

Claim 14

A closure as claimed in claim 10 wherein the die cut extends across the inclined wall between said ribs and said valve, thus providing a degree of flexibility for the downward movement of the valve.

Claim 15

A closure as claimed in claim 11 wherein the valve is of convex configuration on its top side.