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CA1192525A Expired / Lapsed CA ⏱️ 0.0 years remaining

Package having handle-adaptable flap

Assignee: Baxter International Inc
•
Filing: 1982-07-09
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Granted: 1985-08-27
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Expires: 2002-07-09
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Abstract

Abstract Package Having Handle-Adaptable Flap Abstract A chamber-defining package of the type including a thermoformed plastic base and a flexible cover such that the package is suitable as a medical quality container, further includes a downwardly extending flap unitary with the base at a fracturable, juncture-defining bend line, facilitating fast and easy opening. The cover is attached both to the flap and the base. The flap and bend line are formed such that the plastic material at the bend line is heat-set. Upon rotation of the flap about the bend line, the bend line fractures. The flap, still attached to the cover, is adaptable as a handle for separating the cover from the base along a rupturable seal. The flap permits the first portion of the seal which is ruptured to be substantially parallel to the direction imparted to the cover being removed. Such construction allows for quick opening of the package without tearing the cover, provid-ing easy access to the chamber therein.

Inventors

  • 👤 Stephen R. Holten
  • 👤 James L. Cabernoch

Bibliographic Details

Application Number —
Jurisdiction CA
Data Source google_patents
Last Synchronized 2026-10-29 14:01
CPC Classifications
—

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 165 words
A chamber-defining package comprising: (a) a plastic base including (i) a bottom wall, (ii) four sidewalls extending upwardly from said bottom wall such that said sidewall and bottom wall define a volume, (iii) a flange extending outwardly from the top of said sidewalls, and (iv) a flap unitary with the said flange and depending and extending substantially vertically downwardly from a portion of said flange at a bend line defining the juncture of said flange and said flap; (b) a cover closing the volume to form a chamber and at least partially fastened to said base at said flange along a rupturable seal; (c) securing means fastening a part of said cover to said flap; (d) content identification marking on said part of said cover to easily identify the contents of the package; and (e) wherein said plastic base is heat-set at the bend line during formation of said package such that said flap remains in the substantially vertically downward position relative to said flange.
Claim 2
Dependent Claim 165 words
A chamber-defining package comprising: (a) a plastic base including (i) a bottom wall, (ii) four sidewalls extending upwardly from said bottom wall such that said sidewall and bottom wall define a volume, (iii) a flange extending outwardly from the top of said sidewalls, and (iv) a flap unitary with the said flange and depending and extending substantially vertically downwardly from a portion of said flange at a bend line defining the juncture of said flange and said flap; (b) a cover closing the volume to form a chamber and at least partially fastened to said base at said flange along a rupturable seal; (c) securing means fastening a part of said cover to said flap; (d) content identification marking on said part of said cover to easily identify the contents of the package; and (e) wherein said plastic base is heat-set at the bend line during formation of said package such that said flap remains in the substantially vertically downward position relative to said flange.
Claim 3
Dependent Claim 16 words
The package as in claim 1, wherein said securing means comprises at least one spot seal.
Claim 4
Dependent Claim 21 words
The package as in claim l, wherein said cover may be manually separated and removed from said flap and said flange.
Claim 5
Dependent Claim 54 words
The package as in claim 1, further comprising oriented fibers in said cover wherein said cover may be removed from said flange in the direction substantially the same as the fiber orientation of said oriented fibers, facilitating separation of said cover from said flange along the rupturable seal while preventing destruction of said cover.
Claim 6
Dependent Claim 16 words
The package as in claim 4, wherein said securing means comprises at least one spot seal.
Claim 7
Dependent Claim 21 words
The package as in claim 4, wherein said cover may be manually separated and removed from said flap and said flange.

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