Fastening strips with barbed closure elements

Abstract

An interlocking closure fastening device comprises a pair of elongate closure elements. One of the closure elements has a barbed surface along a portion thereof. A second closure element includes a complemental surface that, when mated with the first surface, provides a perceptible tactile sensation.

1 . An interlocking closure fastening device comprising a pair of opposed, longitudinally extending closure elements adapted to interlockingly engage with each other, the first closure element having a first barbed surface extending along a segment thereof, and a second closure element including a first complementary surface disposed along a segment thereof, said first complementary surface being in engagement with said first barbed surface in an occluded position, the surfaces providing ratcheting engagement upon the application of compression forces to the first and second closure elements.  
     
     
         2 . The invention as in  claim 1  wherein said first closure element includes a base and said first barbed surface is oriented at an angle in the range of 0°-90° relative to said base.  
     
     
         3 . The invention as in  claim 2  wherein said first barbed surface is oriented at an angle of substantially 90° to said base.  
     
     
         4 . The invention as in  claim 3  wherein said first closure element includes a web and said first barbed surface is located on said web.  
     
     
         5 . The invention as in  claim 4  wherein said first barbed surface includes a plurality of hooks.  
     
     
         6 . The invention as in  claim 4  wherein said first barbed surface includes a plurality of saw teeth.  
     
     
         7 . The invention as in  claim 4  wherein said first barbed surface includes a plurality of protrusions.  
     
     
         8 . The invention as in  claim 4  wherein said first barbed surface has a serpentine configuration.  
     
     
         9 . The invention as in  claim 4  wherein said first complementary surface has a barb.  
     
     
         10 . The invention as in  claim 4  wherein said first complementary surface has a barbed surface.  
     
     
         11 . The invention as in  claim 10  wherein said barbed surfaces include a plurality of hooks.  
     
     
         12 . The invention as in  claim 10  wherein said barbed surfaces include a plurality of saw teeth.  
     
     
         13 . The invention as in  claim 10  wherein said barbed surfaces include a plurality of protrusions.  
     
     
         14 . The invention as in  claim 10  wherein said barbed surfaces have a serpentine configuration.  
     
     
         15 . The invention as in  claim 3  wherein said first closure element includes two webs and said first barbed surface is located on one of said webs and a second barbed surface is located on said other web.  
     
     
         16 . The invention as in  claim 15  wherein said barbed surfaces include a plurality of hooks.  
     
     
         17 . The invention as in  claim 15  wherein said barbed surfaces include a plurality of saw teeth.  
     
     
         18 . The invention as in  claim 15  wherein said barbed surfaces include a plurality of protrusions.  
     
     
         19 . The invention as in  claim 15  wherein said barbed surfaces have a serpentine configuration.  
     
     
         20 . The invention as in  claim 15  wherein said first complementary surface has a barb.  
     
     
         21 . The invention as in  claim 15  wherein said first complementary surface has a barbed surface and said second closure element includes a second complementary surface, said second complementary surface has a barbed surface.  
     
     
         22 . The invention as in  claim 21  wherein said barbed surfaces include a plurality of hooks.  
     
     
         23 . The invention as in  claim 21  wherein said barbed surfaces include a plurality of saw teeth.  
     
     
         24 . The invention as in  claim 21  wherein said barbed surfaces include a plurality of protrusions.  
     
     
         25 . The invention as in  claim 21  wherein said barbed surfaces have a serpentine configuration.  
     
     
         26 . The invention as in  claim 15  wherein said barbed surfaces face inward.  
     
     
         27 . The invention as in  claim 15  wherein said barbed surfaces face outward.  
     
     
         28 . The invention as in  claim 15  wherein said first barbed surface has a different configuration than said second barbed surface.  
     
     
         29 . The invention as in  claim 3  wherein said first closure element includes a first web, a second web, a third web and a fourth web, said first barbed surface located on said first web, said second web includes a second barbed surface, said second barbed surface oriented at an angle of substantially 90° to said base, said third web includes a third barbed surface, and said fourth web includes a fourth barbed surface.  
     
     
         30 . The invention as in  claim 29  wherein said third web is parallel to said base.  
     
     
         31 . The invention as in  claim 29  wherein said third web is oriented at an angle greater than 0° relative to said base.  
     
     
         32 . The invention as in  claim 2  wherein said first closure element includes a base and said first barbed surface is substantially parallel to said base.  
     
     
         33 . The invention as in  claim 32  wherein said first barbed surface is integral with said base.  
     
     
         34 . The invention as in  claim 32  wherein said first barbed surface includes a plurality of saw teeth.  
     
     
         35 . The invention as in  claim 32  wherein said first barbed surface includes a plurality of protrusions.  
     
     
         36 . The invention as in  claim 32  wherein said second closure element includes a web and said first complementary surface is disposed along said web.  
     
     
         37 . The invention as in  claim 32  wherein said first closure element includes a second barbed surface.  
     
     
         38 . The invention as in  claim 37  wherein said second barbed surface is substantially parallel to said base.  
     
     
         39 . The invention as in  claim 37  wherein said second closure element includes a web and a second complementary surface along said web.  
     
     
         40 . The invention as in  claim 37  wherein said second barbed surface is oriented at an angle of substantially 90° to said base.  
     
     
         41 . The invention as in  claim 36  wherein said first complementary surface includes a barb.  
     
     
         42 . A container comprising two opposed sidewalls and an interlocking fastening device, the fastening device including a first closure element secured to one of the sidewalls, the first closure element having a first barbed surface along a segment thereof, and a second closure element secured to the second sidewall, the second closure element including a first complementary surface along a segment thereof, said first complementary surface being in mated interlocking engagement with said first barbed surface in an occluded position, the surfaces providing ratcheting engagement when urged from an deoccluded position to the occluded position.  
     
     
         43 . The invention as in  claim 42  wherein said first closure element includes a base and said first barbed surface is oriented at an angle in the range of 0°-90° relative to said base.  
     
     
         44 . The invention as in  claim 43  wherein said first barbed surface is oriented at an angle of substantially 90° to said base.  
     
     
         45 . The invention as in  claim 44  wherein said first closure element includes a web and said first barbed surface is located on said web.  
     
     
         46 . The invention as in  claim 45  wherein said first barbed surface includes a plurality of hooks.  
     
     
         47 . The invention as in  claim 45  wherein said first barbed surface includes a plurality of saw teeth.  
     
     
         48 . The invention as in  claim 45  wherein said first barbed surface includes a plurality of protrusions.  
     
     
         49 . The invention as in  claim 45  wherein said first barbed surface has a serpentine configuration.  
     
     
         50 . The invention as in  claim 45  wherein said first complementary surface has a barb.  
     
     
         51 . The invention as in  claim 45  wherein said first complementary surface has a barbed surface.  
     
     
         52 . The invention as in  claim 51  wherein said barbed surfaces include a plurality of hooks.  
     
     
         53 . The invention as in  claim 51  wherein said barbed surfaces include a plurality of saw teeth.  
     
     
         54 . The invention as in  claim 51  wherein said barbed surfaces include a plurality of protrusions.  
     
     
         55 . The invention as in  claim 51  wherein said barbed surfaces have a serpentine configuration.  
     
     
         56 . The invention as in  claim 44  wherein said first closure element includes two webs and said first barbed surface is located on one of said webs and a second barbed surface is located on said other web.  
     
     
         57 . The invention as in  claim 56  wherein said barbed surfaces include a plurality of hooks.  
     
     
         58 . The invention as in  claim 56  wherein said barbed surfaces include a plurality of saw teeth.  
     
     
         59 . The invention as in  claim 56  wherein said barbed surfaces include a plurality of protrusions.  
     
     
         60 . The invention as in  claim 56  wherein said barbed surfaces have a serpentine configuration.  
     
     
         61 . The invention as in  Claim 56  wherein said first complementary surface has a barb.  
     
     
         62 . The invention as in  claim 56  wherein said first complementary surface has a barbed surface and said second closure element includes a second complementary surface, said second complementary surface has a barbed surface.  
     
     
         63 . The invention as in  claim 62  wherein said barbed surfaces include a plurality of hooks.  
     
     
         64 . The invention as in  claim 62  wherein said barbed surfaces include a plurality of saw teeth.  
     
     
         65 . The invention as in  claim 62  wherein said barbed surfaces include a plurality of protrusions.  
     
     
         66 . The invention as in  claim 62  wherein said barbed surfaces have a serpentine configuration.  
     
     
         67 . The invention as in  claim 56  wherein said barbed surfaces face inward.  
     
     
         68 . The invention as in  claim 56  wherein said barbed surfaces face outward.  
     
     
         69 . The invention as in  claim 56  wherein said first barbed surface has a different configuration than said second barbed surface.  
     
     
         70 . The invention as in  claim 44  wherein said first closure element includes a first web, a second web, a third web and a fourth web, said first barbed surface located on said first web, said second web includes a second barbed surface, said second barbed surface oriented at an angle of substantially 90° to said base, said third web includes a third barbed surface, and said fourth web includes a fourth barbed surface.  
     
     
         71 . The invention as in  claim 70  wherein said third web is parallel to said base.  
     
     
         72 . The invention as in  claim 70  wherein said third web is oriented at an angle greater than 0° relative to said base.  
     
     
         73 . The invention as in  claim 43  wherein said first closure element includes a base and said first barbed surface is substantially parallel to said base.  
     
     
         74 . The invention as in  claim 73  wherein said first barbed surface is integral with said base.  
     
     
         75 . The invention as in  claim 73  wherein said first barbed surface includes a plurality of saw teeth.  
     
     
         76 . The invention as in  claim 73  wherein said first barbed surface includes a plurality of protrusions.  
     
     
         77 . The invention as in  claim 73  wherein said second closure element includes a web and said first complementary surface is disposed along said web.  
     
     
         78 . The invention as in  claim 73  wherein said first closure element includes a second barbed surface.  
     
     
         79 . The invention as in  claim 78  wherein said second barbed surface is substantially parallel to said base.  
     
     
         80 . The invention as in  claim 78  wherein said second closure element includes a web and a second complementary surface along said web.  
     
     
         81 . The invention as in  claim 78  wherein said second barbed surface is oriented at an angle of substantially 90° to said base.  
     
     
         82 . The invention as in  claim 77  wherein said first complementary surface includes a barb.