Patent ID: 11969061
Assignee: YKK CORPORATION
Field: Other consumer goods (Other fields)
Classification: CPC A | IPC A

Claim 2:
3. The slide fastener chain according to claim 1,
wherein a plurality of coupling elements of the first row of coupling elements are each received between two respective adjacent coupling elements of the second row of coupling elements such that:
i) the groove of each first coupling element of the first row receives and contacts, in a first contact region, a respective portion of the second longitudinal edge of the second fastener tape intermediate the respective adjacent coupling elements of the second row,
ii) the head portion of each first coupling element of the first row is received between and contacts, at second and third contact regions respectively, the neck portions of the respective adjacent coupling elements of the second row,
iii) one of the grooves of the respective adjacent coupling elements of the second row receives and contacts, in a fourth contact region, a respective first portion of the first longitudinal edge of the first fastener tape adjacent the to a respective first coupling element, and
iv) another of the grooves of the respective adjacent coupling elements of the second row receives and contacts, in a fifth contact region, a respective second portion of the first longitudinal edge of the first fastener tape adjacent to a respective first coupling element,

wherein each first coupling element is intermediate the respective first and second portions of the first longitudinal edge of the first fastener tape, and
wherein the contact in each of the first, second, third, fourth and fifth contact regions forms a seal between each first coupling element and the respective adjacent coupling elements, the seal allying the first and second longitudinal edges, such that the seal is formed along an entire length of the fastener chain.