The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 25, 1984
Filed:
Mar. 17, 1983
Edward J Drozd, Jr, Lake Hiawatha, NJ (US);
Captive Plastics, Inc., Piscataway, NJ (US);
Abstract
Tamper-evident closures include a threaded cap and a tamper-evident ring removably connected to each other by break-away tabs adapted to break when the cap is rotated in a direction to remove it from a cooperating container. The cap and ring have cooperating surfaces for transmitting closing rotational movement of the cap to the ring to thereby rotate the cap and ring together during closing of the container to thereby prevent separation of the cap from the ring at the break-away tabs. The ring further includes at least one locking surface adapted to engage a corresponding surface on a container to prevent the ring from rotating in the opening direction of rotation, whereby rotation of the closure to open it will cause relative movement between the cap and ring to sever the break-away tabs. A method of molding the cap, tamper-evident ring and break-away tabs as a single member also constitutes a part of the invention, as well as the particular container constructions adapted to cooperate with the closures.