An airtight type zipper according to an embodiment of the present disclosure includes a first zipper member in which first zipper protrusions and first zipper grooves are alternately and continuously formed and a second zipper member coupled to or separated from the first zipper member in a sliding manner, and includes a first closely joined rail formed to be protruded in a continuous direction of the first zipper protrusion and the first zipper grooves and a second closely joined rail formed to be protruded from the first closely joined rail in a shape corresponding to the first closely joined rail, and in which a first closely joined groove and a second closely joined groove, that are mutually coupled to the first closely joined rail and the second closely joined rail when coupled with the first zipper member, are formed in the second zipper member.

An airtight type zipper according to an embodiment of the present disclosure includes a first zipper member in which first zipper protrusions and first zipper grooves are alternately and continuously formed and a second zipper member coupled to or separated from the first zipper member in a sliding manner, and includes a first closely joined rail formed to be protruded in a continuous direction of the first zipper protrusion and the first zipper grooves and a second closely joined rail formed to be protruded from the first closely joined rail in a shape corresponding to the first closely joined rail, and in which a first closely joined groove and a second closely joined groove, that are mutually coupled to the first closely joined rail and the second closely joined rail when coupled with the first zipper member, are formed in the second zipper member.

Aspects herein are directed to a releasable coupling device having a first housing structure than includes a temporary magnet and a second housing structure that includes a permanent magnet. The first housing structure is receivable by a receiving receptacle of the second housing structure. The releasable coupling device may be included as part of a slide fastener assembly having two slider tapes.

Aspects herein are directed to a releasable coupling device having a first housing structure than includes a temporary magnet and a second housing structure that includes a permanent magnet. The first housing structure is receivable by a receiving receptacle of the second housing structure. The releasable coupling device may be included as part of a slide fastener assembly having two slider tapes.

A waterproof zipper with at least one curve includes a first tape and a second tape, and interlocking elements attached to the first tape and the second tape, wherein the first tape and the second tape are curved, and wherein a curve of at least one of the tapes was caused by compaction of that tape. The zipper is coated on at least one side with a fluid impervious coating.

A waterproof zipper with at least one curve includes a first tape and a second tape, and interlocking elements attached to the first tape and the second tape, wherein the first tape and the second tape are curved, and wherein a curve of at least one of the tapes was caused by compaction of that tape. The zipper is coated on at least one side with a fluid impervious coating.

A slide fastener sealing system and related methods. In one example, the slide fastener sealing system includes a separating slide fastener in which a first end overlaps and is secured to a second end such that a sealing zone is located between the overlapping ends of the slide fastener. The sealing system also includes in this example a sealing member that can be secured to the slide fastener in a removable fashion with a portion of the sealing member located in the sealing zone to seal against fluid penetration through the sealing zone.

A slide fastener sealing system and related methods. In one example, the slide fastener sealing system includes a separating slide fastener in which a first end overlaps and is secured to a second end such that a sealing zone is located between the overlapping ends of the slide fastener. The sealing system also includes in this example a sealing member that can be secured to the slide fastener in a removable fashion with a portion of the sealing member located in the sealing zone to seal against fluid penetration through the sealing zone.

An element includes a head having an engaging convex portion protruding from one surface thereof and an engaging concave portion formed on the back of the engaging convex portion on the other surface; and a pair of leg portions extending from the head. A protrusion is formed on a side of the engaging concave portion close to the leg portions to protrude inward of the engaging concave portion.

An element includes a head having an engaging convex portion protruding from one surface thereof and an engaging concave portion formed on the back of the engaging convex portion on the other surface; and a pair of leg portions extending from the head. A protrusion is formed on a side of the engaging concave portion close to the leg portions to protrude inward of the engaging concave portion.