A plastic resealable closure includes a base plate affixed to a can, a middle plate having a plug, and a top plate having a support ring. The support ring expands or supports the plug to enhance sealing. The top plate includes prongs that are insertable into recesses on the base plate to enhance clo
A plastic resealable closure includes a base plate affixed to a can, a middle plate having a plug, and a top plate having a support ring. The support ring expands or supports the plug to enhance sealing. The top plate includes prongs that are insertable into recesses on the base plate to enhance closing. The closure is applied without heating of the tool or the closure.
대표청구항▼
1. A can end combination comprising a metal can end and resealable closure coupled to the can end, the can end comprising a peripheral wall and a center panel, the center panel including an upper surface, an opposing lower surface, and an aperture formed therethrough;the closure comprising: a base p
1. A can end combination comprising a metal can end and resealable closure coupled to the can end, the can end comprising a peripheral wall and a center panel, the center panel including an upper surface, an opposing lower surface, and an aperture formed therethrough;the closure comprising: a base plate that is coupled to the can end center panel and includes a recess formed therein and an opening formed therein;a middle plate including a plug, the middle plate being connected to the base plate by a first hinge; anda top plate including at least one prong, the top plate being connected to the middle plate by a second hinge;at least one of the can end aperture and the closure base plate forming a pour opening;the closure configured to have (i) a fully closed position in which the base plate, middle plate and top plate are in mutual contact, the plug is located in the pour opening to obstruct the pour opening, and the at least one prong of the top plate is located in the recess of the base plate, (ii) a intermediate position in which at least the top plate is in an oblique position relative to horizontal, (iii) a fully open position in which the plug is spaced apart from the pour opening and the prong is spaced apart from the recess, and (iv) a reclosed position that is enabled after initial opening and in which the plug is located in the pour opening to obstruct the pour opening, and the at least one prong is located in the recess;whereby the top plate pivots between the fully open position and the reclosed position and the prong forms a lever as the plate pivots between the fully open position and the reclosed position to thereby enhance the closing process of the closure. 2. The can end combination of claim 1 wherein an extension of the closure base plate extends through the aperture in the can end and includes a hoop configured to have a sidewall that defines the pour opening, and the plug is located in the pour opening when the closure is in its fully closed position. 3. The can end combination of claim 1 wherein the base plate includes a rim at a periphery of the opening, and the can end includes a curl that extends over at least a portion of the periphery. 4. The can end combination of claim 3 wherein the curl defines the pour opening such that the plug contacts the curl when the closure is in its fully closed position. 5. The can end combination of claim 4 wherein the seal is formed by plastic to metal contact. 6. The can end combination of claim 5 wherein the rim of the base plate has at least one reweld location, the metal-to-plastic contact between the curl and the rim diminishes the effect of the reweld location. 7. The can end combination of claim 4 wherein the plug has a sidewall configured to have a bead capable of contacting the curl when the closure is in its fully closed position. 8. The can end combination of claim 1 wherein the base plate includes an overhang that forms the recess. 9. The can end combination of claim 1 wherein the at least one prong contacts a bottom surface of the recess as the top plate is moved from its fully closed position to its intermediate position. 10. The can end combination of claim 9 wherein the bottom surface of the recess is formed by the upper surface of the can end center panel. 11. The can end combination of claim 9 wherein the at least one prong is a pair of prongs at a foot of the top plate and the recess is a pair of recesses formed at a rear of the base plate. 12. The can end combination of claim 10 wherein distal tips of the prongs slide on the upper surface of the can end while the top plate moves from its fully closed position to the intermediate position. 13. The can end combination of claim 9 wherein the top plate pivots and upwardly translates while the top plate moves from its fully closed position to the intermediate position. 14. The can end combination of claim 13 wherein the movement of the top plate toward the intermediate position lifts at least a portion of the plug from the pour opening. 15. The can end combination of claim 9 wherein the at least one prong is inserted into the recess and an upper surface of the prong contacts the underside surface of the recess during the closing process to the reclosed position. 16. The can end combination of claim 1 wherein the top plate includes a ring extending downwardly from an underside thereof, the ring contacting an inside surface of the plug while the closure is in the fully closed position. 17. The can end combination of claim 1 wherein the plug includes a plug panel and a peripheral sidewall. 18. The can end combination of claim 17 wherein the plug panel has a radial thickness that is greater than a radial thickness of the plug sidewall. 19. The can end combination of claim 17 wherein the plug sidewall has an outside diameter that is less than an inner diameter of the pour opening. 20. The can end combination of claim 19 wherein the top plate includes a ring extending downwardly from an underside thereof, the ring configured to have an outside diameter that is greater than an inside diameter of the plug sidewall. 21. The can end combination of claim 20 wherein the ring has a radial thickness that is greater than the radial thickness of the plug sidewall. 22. The can end combination of claim 20 wherein the ring extends into the plug while the closure is in its fully closed position such that an outside surface of the ring urges the plug sidewall radially outwardly into contact with the pour opening sidewall. 23. The can end combination of claim 22 wherein the middle plate includes a vent hole and the top plate includes a vent hole stopper that is located in the vent hole to seal the vent hole while the closure is in its fully closed position. 24. The can end combination of claim 23 wherein the ring includes vents formed therein for enabling communication across the ring for releasing pressure upon release of the vent hole stopper from the vent hole. 25. The can end combination of claim 1 wherein the base plate includes a downwardly extending hoop that extends through the aperture in the can end center panel, the hoop configured to have a bottom flange that extends radially outwardly to clamp the base plate to the can end center panel, a bottom surface of the flange configured to have alternating peaks and valley formed therein during application of the closure to the can end, whereby clamping is enhanced. 26. The can end combination of claim 1 wherein the base plate includes a stake protruding from the base plate that engages the top plate while the closure is in the fully closed position, the stake becoming disengaged from the top plate upon moving the top plate from the fully closed position toward the intermediate position, thereby providing tamper evidence. 27. The can end combination of claim 26 wherein the stake includes a rivet head that protrudes through an aperture in the top plate to engage the top plate. 28. The can end combination of claim 27 wherein the aperture includes a countersink in which the rivet head is disposed while the closure is in its fully closed position, the rivet head being pulled through the aperture upon moving the closure from its fully closed position toward its intermediate position. 29. The can end combination of claim 28 wherein the rivet head is not insertable into the countersink after initial opening of the closure such that the head is not located in the countersink while the closure is in the reclosed position. 30. The can end combination of claim 27 wherein the top plate includes a web in which at least a part of the aperture is formed, a rivet head is located in or above the web while the closure is in its fully closed position, such that the web is ruptured upon moving the closure from its fully closed position toward its intermediate position. 31. The can end combination of claim 1 wherein the plug includes a ramp, and a portion of a rim of the ring of the top plate contacts the ramp to enhance insertion of the plug into the pour opening while the closure is moved toward the reclosed position. 32. The can end combination of claim 1 wherein the closure is formed as a single unit. 33. A package comprising a can body and the can end combination of claim 1, the can end being attached to the can body by a seam. 34. The package of claim 33 wherein the at least one prong contacts a seam that couples the can end to the can body, such that the top plate and middle plate are releasably retained and spaced apart from the pour opening. 35. The package of claim 33 wherein a foot of the top plate contacts a seam that couples the can end to the can body, such that the top plate and middle plate are releasably retained and spaced apart from the pour opening.
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