A child resistant zipper closure for a plastic bag includes a double slider, including a first slider and second slider. The first and second sliders are oriented on the zipper closure such that when at least one of the first slider and second slider is moving in a direction toward the other of the first slider and second slider, the zipper is interlocking; and when at least one of the first slider and second slider is moving in a direction away from the other of the first slider and second slider, the zipper is unlocking. The first and second sliders can be releasably connected together.

A double open end zipper for both end positioning-based luggage includes first and second housing members respectively equipped with an N-shaped plastic strip at the rim thereof, and a double open end zipper including first and second zipper tapes respectively stitched to the N-shaped plastic strips at the first and second housing members in reversed directions with the box and pin of the first zipper tape respectively disposed adjacent to the pin and box of the second zipper tape subject to the guidance of a mark line at each N-shaped plastic strip, a seam allowance constraint block located at an outer rear side of the box of each of the first and second zipper tapes, two zipper sliders respectively coupled to first and second zipper tapes, allowing adjustment of the combined storage capacity defined in between the first and second housing members.

A slide fastener including two stringers and a pair of sliders mounted to one of the stringers. When first separated from each other, the first and second stringers can be secured to each other using the sliders starting at either end thereof. Also, a garment extender including the slide fastener.

A slide fastener includes first and second stringers, an intermediate body, a first slider, and a second slider. The first and second stringers are separated by a first lateral distance in a first longitudinal portion, the first and second stringers are separated by a second lateral distance in a second longitudinal portion. A transition portion extending along at least a portion of a longitudinal extent of the intermediate body interposes the first and second longitudinal portions, and the second lateral distance is greater than the first lateral distance.

A dock slider includes a guide column. An upper wing plate and a lower wing plate are connected by the guide column. The guide column is provided on the front end side of the slider. The space formed between the upper wing plate and the lower wing plate forms a sliding groove. An upper guide plate is downwardly and vertically provided from the left edge and the right edge of the upper wing plate, respectively. The upper guide plate is configured to limit the sliding direction of the slider. A lower guide plate is upwardly and vertically provided from the left edge and the right edge of the lower wing plate, respectively. The lower guide plate is configured to limit the sliding direction of the slider and arranged corresponding to the upper guide plate.

A slide fastener including two stringers and a pair of sliders mounted to one of the stringers. When first separated from each other, the first and second stringers can be secured to each other using the sliders starting at either end thereof. Also, a garment extender including the slide fastener.

A slide fastener having multiple slider tracks and multiple slider bodies that converge at a central hub.

A pair of specialty pants for immobile patients includes at least two open-ended zippers configured in series on each pant leg. This configuration of zipper assemblies affords access to the full length of the patient's leg and makes it much easier to put on or take off the specialty pants for a patient with mobility issues such as a wheelchair bound patient.

A dock slider includes a guide column. An upper wing plate and a lower wing plate are connected by the guide column. The guide column is provided on the front end side of the slider. The space formed between the upper wing plate and the lower wing plate forms a sliding groove. An upper guide plate is downwardly and vertically provided from the left edge and the right edge of the upper wing plate, respectively. The upper guide plate is configured to limit the sliding direction of the slider. A lower guide plate is upwardly and vertically provided from the left edge and the right edge of the lower wing plate, respectively. The lower guide plate is configured to limit the sliding direction of the slider and arranged corresponding to the upper guide plate.

A coupling structure of retractable handle-equipped luggage includes a luggage housing comprising an upper housing member and a lower housing member equipped with a retractable handle, a double open end zipper including a second zipper tape stitched to the rim of the upper housing member, a first zipper tape stitched to the rim of the lower housing member, a box affixed to each of two opposite ends of the first zipper tape, a pin affixed to each of two opposite end of the second zipper tape and two zipper sliders mounted to the first zipper tape and respectively provided with a pull tap that is fastenable to a customs lock at the lower housing member, two detachable flexible buckles stitched to the upper and lower housing members, and a detachable hinge mounted to the upper housing member and the lower housing member between the two detachable flexible buckles.