Container and closure therefor

Claim 2

A closure for a container having a wall member with an aperture, said closure comprising a sleeve member having a seal-tight fit within said aperture and having a bore providing a pour opening, a flexible plastic plug having a seal-tight fit within said opening, a lift lever connected to said plug, and a combination pour lip and fulcrum projecting from one of said members for fulcruming engagement by said lever upon lifting and tilting thereof to thereby open said pour opening by lifting the plug out of the pour opening.

Claim 3

A closure for a container having a wall member with an aperture, a tubular sleeve member having a seal-tight fit within said aperture and providing a pour opening, a resilient plug having, in the closed position, a seal tight fit within said opening, a lift lever, means tethering said lift lever to said plug, said lift lever having a fulcrum end and a lift end, and combination fulcrum and lip guide means on said sleeve member extending axially thereof, said lift lever being swingable over said combination means for prying said plug out of said pour opening.

Claim 4

A closure for a container having a wall member with an aperture, a tubular sleeve member having a seal-tight fit within said aperture and providing a pour opening, a resilient plug having, in the closed position, a seal tight fit within said opening, a lift lever, means tethering said lift lever to said plug, said lift lever having a fulcrum end and a lift end, and combination fulcrum and lip guide means on said sleeve member extending axially thereof, said lift lever being swingable over said combination means for prying said plug out of said pour opening.

Claim 5

The invention according to claim 2 and first means tethering said plug to said sleeve member.

Claim 6

The invention according to claim 3 and second tethering means connecting the lever to the plug being disposed diametrically opposite to said first tethering means.

Claim 7

The invention according to claim 2 and said closure being made of plastic.

Claim 8

The invention according to claim 2 and said closure comprising vent means including a vent hole in said plug, and a pin connected to said lever and insertable into said vent and withdrawable from the vent hole attendant to the lever being lifted.

Claim 9

The invention according to claim 6 and said plug being hollow and having a flexible wall positioned in the closed position of the plug in sealing engagement with said sleeve member, and said pin in the closed position of the vent being disposed in rigidifying relation to said flexible wall of the plug and said pin in the open position of the vent being displaced from said flexible wall whereby said plug is free to be deflected away from its engagement with said sleeve member to facilitate withdrawal of the plug from said sleeve member.

Claim 10

A closure for a container having an access aperture, said closure comprising: a sealing element insertable into said aperture and having a bore providing a pour opening, a plug insertable into said pour opening for closing the same, and means for lifting said plug out of said opening to open the same, said means comprising a lever horizontally disposed in overlying relation to the top of said plug in the closed position of the plug, a tether connecting said lever at one of its ends to a peripheral portion of the plug, fulcrum means on said sealing element positioned adjacent to said tether alongside the upper end of the plug in horizontal alignment with said lever for fulcruming engagement by said one end thereof attendant to the opposite end of the lever being lifted, said tether being dimensioned to accommodate said one end of said lever to swing over said fulcrum means and flex said plug and withdraw the plug from said pour opening.

Claim 11

A closure for a container having an access aperture, said closure comprising: a sealing element insertable into said aperture and having a bore providing a pour opening, a plug insertable into said pour opening for closing the same, and means for lifting said plug out of said opening to open the same, said means comprising a lever horizontally disposed in overlying relation to the top of said plug in the closed position of the plug, a tether connecting said lever at one of its ends to a peripheral portion of the plug, fulcrum means on said sealing element positioned adjacent to said tether alongside the upper end of the plug in horizontal alignment with said lever for fulcruming engagement by said one end thereof attendant to the opposite end of the lever being lifted, said tether being dimensioned to accommodate said one end of said lever to swing over said fulcrum means and flex said plug and withdraw the plug from said pour opening.

Claim 12

The invention according to claim 8 and means tethering said plug to said element.

Claim 13

A closure for a container having an aperture, said closure comprising a sleeve fitted into said aperture, means providing a seal between the sleeve and said container, said sleeve having a bore providing a pour opening, a plug having a seal fit with said sleeve in closed position within said opening, a lever overlying said plug in the closed position of the closure, a tether connecting one end of the lever to said plug, and a fulcrum on the sleeve having an upper end positioned for sliding engagement by said lever attendant to said lever being swung beyond a predetermined angle whereupon said lever is caused to pivot on the fulcrum and pull the tether and thus lift said plug out of said opening.

Claim 14

A closure for a container having an aperture, said closure comprising a sleeve fitted into said aperture, means providing a seal between the sleeve and said container, said sleeve having a bore providing a pour opening, a plug having a seal fit with said sleeve in closed position within said opening, a lever overlying said plug in the closed position of the closure, a tether connecting one end of the lever to said plug, and a fulcrum on the sleeve having an upper end positioned for sliding engagement by said lever attendant to said lever being swung beyond a predetermined angle whereupon said lever is caused to pivot on the fulcrum and pull the tether and thus lift said plug out of said opening.

Claim 15

The invention according to claim 10 and said fulcrum projecting outwardly from said sleeve and providing a pouring lip.

Claim 16

The invention according to claim 10 and said fulcrum being disposed radially outwardly of said lever.

Claim 17

The invention according to claim 10 and said lever initially engaging with its end the top end of said fulcrum and then sliding off the top end and engaging with its top side the top end of the fulcrum as the lever is swung beyond 90° from its position laying flat on top of the plug.