Can cover with a stay-on tab

Abstract

A can cover with a stay-on tab has one end and another end of the stay-on tab respectively inclined upwardly from the upper surface of the can cover so that there are distances between the one end of the stay-on tab and the upper surface of the can cover and between the other end of the-stay-on tab and the upper surface of the can cover. The distance between the other end of the stay-on tab and the upper surface of the can cover is made larger when the end of the stay-on tab is pushed downwardly toward the upper surface of the can cover. The stay-on tab moves like a seesaw. Wrinkles are provided as indentations extending across the can cover.

Description

RELATED U.S. APPLICATIONS [0001] The present application is a continuation-in-part of U.S. application Ser. No. 10 / 038,278, filed on Jan. 4, 2002, and entitled “Can Cover with a Stay-On Tab”, presently pending.STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT [0002] Not applicable. REFERENCE TO MICROFICHE APPENDIX [0003] Not applicable. FIELD OF THE INVENTION [0004] The present invention relates to a can cover or a can top with a stay-on tab. Particularly the invention relates to a can cover having a stay-on tab which can be easily pulled upward with a finger. The present invention also relates to can covers that include structures that prevent swelling of the can cover. BACKGROUND OF THE INVENTION [0005] A cover of a can containing a drink is usually provided with a stay-on tab thereon. FIGS. 9 and 10 show a conventional can cover 1 with a stay-on tab 3. The conventional stay-on tab 3 is attached to the upper surface of the can cover 1 by a supporting means 5 protrudi...

AI Technical Summary

Benefits of technology

[0009] It is another object of the invention to provide a can cover with a stay-on tab in which it is very easy to insert a finger between the stay-on tab and the upper surface of the can cover in order to pull upward on the other end of the stay-on tab.

[0010] It is a further object of the invention to provide a can cover with a stay-on tab in which the tab is prevented from being turned in a horizontal direction by an external cause during the transportation, storage, etc. of the can.

[0011] It is a further object of the invention to provide a can cover with a stay-on tab in which the tab is prevented from being broken when the other end of the stay-on tab is pulled upward from the upper surface of the can cover.

[0012] It is still another object of the present invention to provide a can cover that serves to prevent upward swelling of the can cover by an expansion of the contents of the can.

[0020] An opening is formed between the central portion of the stay-on tab and the other end thereof. However, the material corresponding to the opening is not cut off but folded back to the other end of the stay-on tab. Therefore, the stay-on tab is reinforced and prevented from being broken when the other end of the stay-on tab is pulled upward from the upper surface of the can cover.

Problems solved by technology

Since the stay-on tab is in close contact with the upper surface of the can cover, it is very difficult to insert a finger between the stay-on tab and the upper surface of the can cover in order to pull upward on the other end of the stay-on tab.

In such a case, it is often difficult to open the can.

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