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US 2003/0192899 A1Published application
Paint cap closure with exterior pull ring
AssigneeNone recorded
InventorRon Sturk
Life of this patent
Estimating the term…
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AssigneeNone recorded
InventorRon Sturk
Estimating the term…
A closure for a container cover opening, said opening defined by an upstanding cylindrical wall with a beaded rim, said closure comprising a circular closure bottom, inner wall, top wall, outer skirt and outer flange presenting an annular recess for engaging said cylindrical wall and said beaded rim; a pull ring; said pull ring connected to the exterior of said top wall; said closure to be removed by inserting a finger through said pull ring and lifting said closure off said beaded rim.
A closure for a container cover opening, said opening defined by an upstanding cylindrical wall with a beaded rim, said closure comprising:
A press fit closure for a container cover opening, said opening presenting an upstanding cylindrical wall with a beaded rim, said closure being adapted to mount on said opening, said closure comprising;
A closure for a container cover opening having a beaded rim comprising:
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
Backward citations are indexed for grants only.
Secured by snapping over beads or projections: only on the outside, or a part turned to the outside, of the mouth
Curved: circular
Materials used: plastic
On the inside, or a part turned to the inside of the mouth of the container: cup
Term end not estimated
This invention relates in general to plug and cap shaped plastic closures for liquid containers for removable disposition onto apertures with upstanding beaded rims, and in particular to an exterior pull ring with associated lever for releasing the closure skirt from underlying the beaded rim for easy removal of the closure by hand.
The invention also relates to the use of a tamper evident tab located inside the pull ring. To access the pull ring and remove the closure, the tamper resistant tab webs must first be broken. The closure is designed for easy reinstallation by manual press fit.
One piece plug shaped plastic closures are commonly used to contain and dispense paint and other liquids from plastic and metal pails. These industrial shipping containers are generally provided with circular apertures in the cover for press fit installation of the plug shaped closures. These plug shaped closures are commonly provided with an integral pull ring for easy manual installation and removal. For example closures may have to be removed to add color tinting to paint. The closures are then replaced to seal the container for mixing the tint with the paint. Mixing is commonly done by shaker agitation. The closure must be capable of achieving an air tight seal to protect the paint from drying. The closure must also be capable of withstanding the forces applied by paint mixing and by container handling and shipping.
FIG. 1 is a side & cross-sectional view of a press fit closure before installation on a container cover.
FIG. 2 is a side & cross sectional view of a press fit closure after installation on a container cover.
FIG. 3 is a top view of the closure.
Like parts shall be given like numbers throughout the figures
FIG. 1 is a side and cross-sectional view of a press fit closure (or closure) 4. The closure 4 is generally made of flexible plastic or the like. The closure has an external pull ring 16 for the removal of the closure 4 from container cover 1. The pull ring 16 is exterior or external to the closure body.
Closure 4 is comprised of a circular closure bottom 5 attached to inner wall 6. The inner wall 6 is generally cylindrical in shape and leads to top wall 7 and outer skirt 8. Outer skirt 8 is cylindrical in shape, and lies radically outside of inner wall 6. Inner wall 6, top wall 7 and outer skirt 8 together form an annular recess 10 which is sized to attach to container cover 1. Connecting member or lever 14 connects top wall 7 to cylindrical pull ring 16. Gusset 15 underlies lever 14 and connects lever 14 to outer skirt 8 and outer flange 9. Tamper evident tab 17 lies within the perimeter of pull ring 16. Tab 17 is attached to pull ring 16 and is initially held in position by one or more frangible webs 18.