Reclosable container

• US 4,363,345 A
• Filed: 11/18/1981
• Issued: 12/14/1982
• Est. Priority Date: 06/02/1980
• Status: Expired due to Term

• Current Assignee: First Brands Corporation
• Original Assignee: Union Carbide Corporation (Dow, Inc.)
• Inventors: Scheibner, Gerald H.
• Primary Examiner(s): Norton, Donald F.
• Application Number:
  US06/322,722
• Time in Patent Office: 391 Days
• Field of Search: 150/3, 24/201 C
• US Class Current: 383/63
• CPC Class Codes: B65D 33/2508 using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
• CPC Class Codes: B65D 33/2541 characterised by the slide fastener, e.g. adapted to interlock with a sheet between the interlocking members having sections of particular shape
• CPC Class Codes: B65D 33/255 being provided with special visual, audible or tactile indicating means, e.g. indicating proper engagement B65D33/2516 takes precedence
• CPC Class Codes: Y10S 24/50 including member having elongated, resilient, interlocking face with identical, parallel cross-sections throughout its length
• CPC Class Codes: Y10T 24/45168 for container [e.g., bag]

Abstract

A reclosable container features ridges near the opening of the container to provide improved gripping of the container by the user during the opening and loading of the container.

Claims

1. In a container having a reclosable end, comprising flexible first and second sidewalls, and a closure fastening device including first and second closure profiles positioned on respective first and second sidewalls and operable for being occluded and disengaged with respect to each other to close and open said container,

said first sidewall extending beyond the end edge of said second sidewall at said reclosable end;

the improvement which comprises;

first and second ridges spaced apart from each other on the surface of said first sidewall and arranged substantially parallel to said first closure profile;

said first ridge being positioned near the end edge of said first sidewall, and said second ridge being positioned substantially opposite the end edge of said second sidewall when said closure profiles are occluded; and

a third ridge on the surface of said second sidewall and arranged substantially parallel to said second closure profile;

said third ridge being positioned near the end edge of said second sidewall.

2. The container of claim 1 wherein said first and second ridges are on the inside surface of said first sidewall and said third ridge is on the inside surface of said second sidewall.

3. The container of claim 1 wherein said third ridge is positioned substantially opposite the region of said first sidewall bordered by said second ridge and said first closure profile when said closure profiles are occluded.

4. The container of claim 1 wherein said sidewalls are transparent and said ridges are colored to be easily recognized visually with respect to said sidewalls.

5. The container of claim 1 wherein said sidewalls are translucent and said ridges are colored to be easily recognized visually with respect to said sidewalls.

6. The container of claim 1 wherein said sidewalls are opaque and said ridges are colored to be easily recognized visually with respect to said sidewalls.

7. The container of claim 1 wherein said ridges have polygonal cross sections.

8. The container of claim 1 wherein said ridges have trapezoidal cross sections.

9. The container of claim 1 wherein said ridges have rectangular cross sections.

10. The container of claim 1 wherein said ridges have triangular cross sections.

11. The container of claim 1 wherein said ridges have trapezoidal cross sections having a width at the respective connecting sidewall of from about 0.005 to about 0.100 inch, a width opposite the respective connecting sidewall of from about 0 to about 0.100 inch, and a height of from about 0.010 to about 0.050 inch.

12. The container of claim 4 wherein said ridges are colored yellow, and said sidewalls are transparent.

13. The container of claim 12 wherein one closure profile is blue and the other closure profile is transparent.

14. In a container having a reclosable end, comprising flexible first and second sidewalls, and a closure fastening device including first and second closure profiles positioned on respective first and second sidewalls and operable for being occluded and disengaged with respect to each other to close and open said container,

said first sidewall extending beyond the end edge of said second sidewall at said reclosable end;

the improvement which comprises;

first and second ridges spaced apart from each other on the inside surface of said first sidewall and arranged substantially parallel to said first closure profile;

said first ridge being positioned near the end edge of said first sidewall, and said second ridge being positioned substantially opposite the end edge of said second sidewall when said closure profiles are occluded; and

a third ridge on the inside surface of said second sidewall and arranged substantially parallel to said second closure profile;

said third ridge being positioned near the end edge of said second sidewall.