Fastener assembly, fastener tape material, bag utilizing fastener tape material, and method of manufacture thereof
First Claim
1. A reclosable fastener assembly for bag making material, said fastener comprising:
- a first closure element comprising a base member, a first male profile extending substantially perpendicularly from said base member and a second male profile extending substantially perpendicularly from said base and substantially parallel to said first male profile said base member further comprising a sealing bridge section extending between said first and second male profiles, said bridge section being thicker than marginal portions of said base, said increased thickness extending in a direction opposite to said first and second male profiles;
a second closure element, said closure element comprising a pair of substantially u-shaped members, said u-shaped members each defining a channel portion constructed and arranged for selective interlocking with said first and second male profiles;
a second sealing bridge extending between said u-shaped members, said second sealing bridge being substantially as thick as said first sealing bridge;
said first and second male members and said u-shaped members further being constructed and arranged, sized and positioned for supporting, when interlocked, said sealing bridge sections in parallel to each other so as to provide a flat surface for sealing of said fastener assembly to said bag making material.
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Accused Products
Abstract
The present invention includes methods, an apparatus and a system in which reclosable bags and components thereof are formed. The reclosable bags are made from base web material that has transversely applied fastener tape segments thereon. The web material is used in a vertical form, fill and seal bag forming method. The method includes the steps of supplying a continuous strip of tape, having first and second closure elements sealed thereon. The first and second closure elements have respectively a pair of male profiles and a pair of female or u-shaped elements thereon, each shaped for interlocking with the other. A thickened sealing bridge between the male elements and a second thickened sealing bridge between the female elements allows precise sealing of the fastener element to fastener tape or to the bag walls as desired. It also facilitates keeping the profiles interlocked.
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Citations
20 Claims
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1. A reclosable fastener assembly for bag making material, said fastener comprising:
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a first closure element comprising a base member, a first male profile extending substantially perpendicularly from said base member and a second male profile extending substantially perpendicularly from said base and substantially parallel to said first male profile said base member further comprising a sealing bridge section extending between said first and second male profiles, said bridge section being thicker than marginal portions of said base, said increased thickness extending in a direction opposite to said first and second male profiles; a second closure element, said closure element comprising a pair of substantially u-shaped members, said u-shaped members each defining a channel portion constructed and arranged for selective interlocking with said first and second male profiles; a second sealing bridge extending between said u-shaped members, said second sealing bridge being substantially as thick as said first sealing bridge; said first and second male members and said u-shaped members further being constructed and arranged, sized and positioned for supporting, when interlocked, said sealing bridge sections in parallel to each other so as to provide a flat surface for sealing of said fastener assembly to said bag making material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A reclosable fastener assembly for bag making material, said fastener assembly comprising:
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a first closure element, said first closure element comprising a base member;
a first male profile extending substantially perpendicularly from said base member and a second male profile extending substantially perpendiculalary from said base member and substantially parallel to said first male profile;
said base member further comprising a sealing bridge section extending between said first and second male profiles, said bridge section being thicker than marginal portions of said base, said increased thickness extending in a direction opposite to said first and second male profiles;a second closure element, said second closure element comprising a pair of substantially u-shaped members, a first one of said u-shaped members defining a first channel portion, a first leg portion and a second leg portion; said first leg portion having a first hook member attached to and extending inwardly therefrom; said second leg portion having a second hook member attached to and extending inwardly therefrom; a second one of said u-shaped members comprising a second channel portion, a third leg portion and a fourth leg portion, a third hook member extending inwardly from said third leg member and a fourth hook member extending inwardly from said fourth leg member, said first and second hook members and said first and second leg members being constructed and arranged, sized and positioned for telescope reception of and selective retention of said first male member; said third and fourth hook members and said third and fourth leg members being constructed and arranged, sized and positioned for telescope reception of and selective retention of said second male member; a second sealing bridge extending between said first and second u-shaped members said second sealing bridge being substantially as thick as said first sealing bridge and; said first and second male members and said u-shaped members further being constructed and arranged, sized and positioned for supporting when interlocked with said first and second u-shaped members, said sealing bridge sections in parallel to each other, thereby facilitating sealing of said fastener assembly to said bag making material. - View Dependent Claims (18, 19, 20)
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Specification