Opening facilitating closure tape and container

• US 4,709,399 A
• Filed: 11/13/1986
• Issued: 11/24/1987
• Est. Priority Date: 08/25/1983
• Status: Expired due to Fees

• Current Assignee: Sealstrip Corporation
• Original Assignee: Beiersdorf AG (Maxingvest AG)
• Inventors: Sanders, Bernard
• Primary Examiner(s): Marcus, Stephen
• Assistant Examiner(s): GEHMAN, BRYON P
• Application Number:
  US06/928,718
• Time in Patent Office: 376 Days
• Field of Search: 206/438, 206/439, 206/631-633, 206/613, 206/807, 206/813, 229/79, 229/80, 229/48 S B, 229/48 S A, 383/5, 383/59, 383/66, 383/81, 383/84, 383/95, 383/99, 383/78, 383/47, 383/51, 383/52
• US Class Current: 383/66
• CPC Class Codes: B65B 9/20 the webs being formed into tubes in situ around the filling nozzles
• CPC Class Codes: B65D 33/1691 using adhesive applied to attached closure elements
• CPC Class Codes: B65D 33/20 using pressure-sensitive adhesive
• CPC Class Codes: Y02W 30/80 Packaging reuse or recycling, e.g. of multilayer packaging bio-packaging Y02W90/10
• CPC Class Codes: Y10S 206/813 Adhesive

Abstract

A container of synthetic plastics film material is provided with a re-sealable closure in the form of a re-usable adhesive tape which bridges an opening so as to form an airtight closure. The container is opened by peeling the tape from a surface with which the tape is in contact and the container is re-closed by reapplying the tape to the surface.

Claims

1. An easily openable container comprising a panel having an elongate opening location and a tape applied by a pressure sensitive contact adhesive to a surface of said panel so as to bridge the opening location, said tape and said adhesive being of greater dimension than the opening location so as to provide a substantially airtight closure and the adhesive being re-usable such that the tape is separately unitable in a controlled manner with the surface of the panel, said container including means for allowing said tape to be peeled from said surface in a transverse direction of the opening location and the tape to release and separate from the adhesive only as far as the opening location so that the continued movement in the transverse direction causes opening of the container at the opening location.

2. A container as in claim 1, wherein the opening location comprises a plurality of frangible portions which are severed when the tape is separated from the surface of said panel.

3. A container as in claim 1, wherein the adhesive is rupturable on opening of the container thereby providing tamper evidence.