Ease of closure through tactile/optical means

• US 6,877,898 B2
• Filed: 09/05/2002
• Issued: 04/12/2005
• Est. Priority Date: 09/05/2002
• Status: Expired due to Fees

• Current Assignee: Illinois Tool Works Inc.
• Original Assignee: Illinois Tool Works Inc.
• Inventors: Berich, Edward, Zivkovic, Herbert
• Primary Examiner(s): Hylton, Robin A.
• Application Number:
  US10/235,151
• Publication Number:
  US 20040047521A1
• Time in Patent Office: 950 Days
• Field of Search: 383/208, 383/63, 383/64, 245/721, 243/99, 244/00, 245/72, 245/851.2, 245/851.1, 24D/IG.50
• US Class Current: 383/63
• CPC Class Codes: B29C 48/001 Combinations of extrusion moulding with other shaping operations
• CPC Class Codes: B29C 48/12 Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
• CPC Class Codes: B29L 2031/7128 Bags, sacks, sachets tea bags B29L2031/7122; medical bags B29L2031/7148
• CPC Class Codes: B29L 2031/727 Fastening elements bolts B29L2001/002; nuts B29L2001/005; screws B29L2001/007; slide fasteners B29L2005/00; buttons for haberdashery B29L2019/00
• 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

Abstract

Backing areas (10, 22) are provided for a zipper (19) used in the manufacture of a reclosable bag (12). The backing areas (10, 22) are formed of a material dissimilar to the bag material with the backing areas (10, 22) provided on the walls (14, 16) of the bag (12) in alignment with the zipper (19). The material of the backing areas (10, 22) is dissimilar in that the material has physical characteristics that are noticeable to the tactile feel of the user in regard to the remaining outside areas of the reclosable bag (12). Such physical characteristics include a noticeable difference in surface lubricity, compressibility, obstructions and/or friction. These identified but not exclusive physical characteristics form the backing areas (10, 22) individually or in combination with each other.

Claims

1. A reclosable bag comprising:

a top and a bottom;

first and second opposing walls extending between said top and bottom and two ends, said first and second opposing walls each having an interior surface and an exterior surface, said first and second opposing walls formed from a material of a first physical characteristic;

a zipper formed from a material of a second physical characteristic, said zipper having a first profile with a first interlocking member and a second profile with a second interlocking member with said zipper extending across one of the ends between the opposing walls;

said first profile being secured to said interior surface of said first opposing wall and said second profile being secured to said interior surface of said second opposing wall; and

a first backing area for locating said zipper, said first backing area positioned permanently on an exterior surface of said first opposing wall in alignment with the interlocking profiles with said first backing area being substantially the same size surface area on the bag wall as one interlocking profile and with said first backing area formed from a material with a third physical characteristic.

2. The reclosable bag in accordance with claim 1 wherein said reclosable bag further includes a second backing area positioned permanently on said exterior surface of said second opposing wall in alignment with the interlocking profiles, with said second backing area being substantially the same size surface area on the bag wall as one interlocking profile and with said second backing area formed from a material with said third physical characteristic.

3. The reclosable bag in accordance with claim 1 wherein said reclosable bag further includes a second backing area positioned permanently on said second opposing wall in alignment with the interlocking profiles with said second backing area being substantially the same size surface area on the bag wall as one interlocking profile and with said second backing area formed from a material with a fourth physical characteristic.

4. The reclosable bag in accordance with claim 2 wherein the first and third physical characteristics have a varying degree of frictional surfaces in relation to each other.

5. The reclosable bag in accordance with claim 2 wherein the first and third physical characteristics have a varying degree of compressibility in relation to each other.

6. The reclosable bag in accordance with claim 2 wherein at least one backing area forms a ridge on the outside of the opposing wall to which said at least one backing area is positioned.