A process of constructing an air tight and water tight seam, comprising cutting a sheet of selected material into two or more panels, sealing the panels at respective selected edges using an ultrasonic machine to form a seam, overlaying the seam with a tape made of the same selected material, and sealing the tape and seam using a radio frequency (RF) welding machine.

A pocketed spring assembly comprises a plurality of parallel strings of individually pocketed springs. Each string is joined to at least one adjacent string. Each string has first and second opposed plies of fabric and a plurality of pockets formed along a length of the string by transverse segmented seams joining the plies. Gaps between the segments of the seams allow air to pass into and out of the pockets despite the fabric being impermeable to airflow through the fabric. The fabric has at least four layers. The size of the gaps determines the firmness or feel of the pocketed spring assembly or portion thereof.

A pocketed spring assembly comprises a plurality of parallel strings of individually pocketed springs. Each string is joined to at least one adjacent string. Each string has first and second opposed plies of fabric and a plurality of pockets formed along a length of the string by transverse segmented seams joining the plies. Gaps between the segments of the seams allow air to pass into and out of the pockets despite the fabric being impermeable to airflow through the fabric. The fabric has at least four layers. The size of the gaps determines the firmness or feel of the pocketed spring assembly or portion thereof.

A bleach compatible mattress cover made of a non-woven polyolefin material and defining an interior cavity. The interior cavity configured to receive a mattress structure which may include a first and second support structure disposed in the interior cavity. In certain embodiments, the mattress cover has a Moisture Vapor Transfer Rate of greater than or equal 400 to less than 10,000, 7500 or more particularly less than 5000 grams per square meter per day and a hydrostatic head of 100 cm or greater and passes ASTM 1670 and

A pocketed spring assembly comprises a plurality of parallel strings of individually pocketed springs. Each string is joined to at least one adjacent string. Each string has first and second opposed plies of fabric and a plurality of pockets formed along a length of the string by transverse segmented seams joining the plies. Gaps between the segments of the seams allow air to pass into and out of the pockets despite the fabric being impermeable to airflow through the fabric. The size of the gaps determines the firmness or feel of the pocketed spring assembly or portion thereof.

A reclosable pouch that includes a receptacle having a storage chamber and a mouth in communication with the storage chamber, a hermetically sealable closure attached to the mouth, the closure including a first zipper strip and a second zipper strip, the first and second zipper strips being fused together in first and second zones situated at respective ends of the closure, a slider mounted to the closure, and a respective pair of round projections arranged back to back on first and second walls of the receptacle. The round projections are separate and distinct from each other and from zipper terminations of the first and second zippers, and the respective pair of round projections prevents further travel of the slider at opposing ends of the closure upon contact with sidewalls of the slider.

A sheet bonding device includes a pressurization mold which is constituted of an upper mold and a lower mold and performs sealing through heating by sandwiching a sealing target portion of a bag main body and a sealing target portion of a gas barrier function sheet with pressurization surfaces; a plurality of support pins which are provided in the lower mold so as to be retractable and position the gas barrier function sheet with respect to one surface of the bag main body by penetrating the sealing target portions of the bag main body and the gas barrier function sheet; and gas spray means for making the gas barrier function sheet float by spraying inert gas to an area-enlarged portion, which does not overlap the bag main body, of the gas barrier function sheet supported by the support pins.

A pocketed spring assembly comprises a plurality of parallel strings of individually pocketed springs. Each string is joined to at least one adjacent string. Each string has first and second opposed plies of fabric and a plurality of pockets formed along a length of the string by transverse segmented seams joining the plies. Gaps between the segments of the seams allow air to pass into and out of the pockets despite the fabric being impermeable to airflow through the fabric. The size of the gaps determines the firmness or feel of the pocketed spring assembly or portion thereof.

A dual edge binder machine and operating method. The dual edge binder machine includes a heat device configured to deliver heat adjacent to an interface between an upper roller and a lower roller. The dual edge binder machine further includes at least one motor rotationally coupled to the upper roller and the lower roller, respectively.