Tamperproof container closure

• US 3,251,509 A
• Filed: 11/20/1964
• Issued: 05/17/1966
• Est. Priority Date: 11/20/1964
• Status: Expired due to Term

• Current Assignee: Foster, John A.
• Original Assignee: Foster, John A.
• Inventors: Foster, John A.
• Application Number:
  US04/414,508
• Time in Patent Office: 543 Days
• US Class Current: 222/153.07
• CPC Class Codes: B65D 47/141 for stoppers

Claims

4. A CONTAINER HAVING A TAMPERPROOF CLOSURE AND COMPRISING IN COMBINATION, A TOP WALL HAVING A DISPENSING OPENING THEREIN, A PLUG MOLDED OF RESILIENT PLASTIC AND HAVING A PERIPHERAL WALL TELESCOPED IN SAID OPENING FOR REMOVAL THEREFROM TO UNCOVER THE OPENING, A STRAP-LIKE ARM MOLDED INTEGRAL WITH SAID PLUG AND EXTENDING OUTWARDLY THEREFROM ALONG AND ADJACENT THE OUTER SURFACE OF SAID TOP WALL, AND MEANS ANCHORING THE OUTER END OF SAID ARM SECURELY TO SAID TOP WALL WHEREBY TO PREVENT REMOVAL OF SAID PLUG FROM SAID OPENING, SAID ARM BEING WEAKENED AT POINTS SPACED ALONG THE ARM TO DEFINE LINES FOR CROSS-TEARING OF THE ARM AND REMOVAL OF THE INTERVENING SECTION OF THE ARM WHEREBY TO FREE SAID PLUG FOR OPENING MOVEMENT AND LEAVE THE ANCHORED END OF THE ARM ATTACHED TO SAID TOP WALL, AND A PULL TAB MOLDED INTEGRAL WITH SAID ARM SECTION AND ADAPTED, WHEN PULLED AWAY FROM SAID TOP WALL TO TEAR SAID ARM ALONG SAID LINES AND REMOVE SAID SECTION AND TAB FROM SAID PLUG.