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US 6,453,521 B1Granted
Multiple pitch zipper
AssigneeDelphi Oracle Corp.
InventorLouis Dischler
Life of this patent
Estimating the term…
Abstract
A zipper including two stringers, each stringer having a row of coupling elements having a plurality of coupling element spacings, and at least one stringer having a plurality of coupling element widths.
Claims24
A zipper, comprising:
- a slider;
- a first stringer comprising a first plurality of coupling elements having a first coupling element pitch sequence, said first coupling element pitch sequence comprising a first coupling element spacing and at least a second coupling element spacing different from said first coupling element spacing;
- and
- a second stringer comprising a second plurality of coupling elements having a second coupling element pitch sequence complementary to said first coupling element pitch sequence, so that said first plurality of coupling elements may be reversibly interleaved and interlocked by said slider with said second plurality of coupling elements.
1 more element
A first zipper stringer for reversibly interlocking with a second zipper stringer comprising:
- a plurality of first coupling elements having a first width equal to one half of a first coupling element spacing of a closed zipper having coupling elements identical to said first plurality of coupling elements, and a plurality of second coupling elements having a second width equal to one half of a second coupling element spacing of a closed zipper having coupling elements identical to said second plurality of coupling elements, wherein said plurality of first coupling elements each have a single substantially rigid first projection that is rotatable relative to adjacent coupling elements, and wherein said plurality of second coupling elements each have a single substantially rigid second projection that is rotatable relative to adjacent projections, whereby the first zipper stringer comprises a first coupling element pitch sequence comprising said first coupling element spacing and at least said second coupling element spacing, wherein said second coupling element spacing is different from said first coupling element spacing.
Dependencies are inferred from the claim text.