The present invention discloses a method of producing at least a pair of interlocking adjacent layers of a paper packaging product, the pair of interlocking adjacent layers being formed of a sheet of slit paper having a slit pattern, the slit pattern upon expansion, forming cells that include land regions that are inclined with respect to a plane of an unexpanded sheet. The method comprises slitting the sheet of slit paper with beveled blades that have a first wedge angle on one side of the blades and a second wedge angle on the other side of the blades, wherein the first wedge angle is wider than the second wedge angle to produce slits that upon expansion, produce the lands regions that have angles of inclination in a range for 50 to 85 degrees.

A hygienic tissue paper includes first slits that are disposed in a longitudinal direction at predetermined intervals, the first slits extending in a width direction intersecting the longitudinal direction, wherein the first slits each include perforations, and wherein a cut length of each of the perforations increases from at least one end in the width direction toward a central portion in the width direction.

A hygienic tissue paper includes first slits that are disposed in a longitudinal direction at predetermined intervals, the first slits extending in a width direction intersecting the longitudinal direction, wherein the first slits each include perforations, and wherein a cut length of each of the perforations increases from at least one end in the width direction toward a central portion in the width direction.

A sewing accessory, namely, a button anchor and attachment system, with a button head and an anchor part. The anchor part includes two prongs that are attached to each other and the button head at the back face of the button head. The button anchor is attached to a garment by using a button anchor hole-puncher tool to punch a hole through the garment, inserting the anchor part of the button anchor in a closed position through the hole, and then bending the two prongs of the anchor part apart into an open position. The button anchor hole-puncher tool has a small blade on the front end and a handle on the back end.

A method of fabricating an acoustic device includes forming a plurality of holes in a panel, disposing the panel in a support frame, and heating the panel to a temperature such that the panel sags while disposed in the support frame and each hole of the plurality of holes is modified.

A device for forming an opening in a nipple of a baby bottle has a housing having a platform formed on a top surface thereof. a cutting unit is positioned on the platform. The cutting unit moves in an up and down manner forming the opening in the nipple. A holding device on the platform has a base and a cutout formed in a top surface of the base holding the nipple there within. The cutout is formed to hold the nipple so that an area of the nipple where the opening is formed is positioned in a bottom area of the cutout. A slot is formed in a bottom section of the cutout and extending through the base, the slot allowing the cutting unit to penetrate through the nipple and into the slot. The cutting unit contacts and stretches an interior wall of the nipple where the opening is to be formed reducing disfiguration where the opening is formed. When the cutting unit is withdrawn once the interior wall has been penetrated therethrough, the interior wall of the nipple where the opening is formed returning to an initial non-stretched state.

A device for forming an opening in a nipple of a baby bottle has a housing having a platform formed on a top surface thereof. a cutting unit is positioned on the platform. The cutting unit moves in an up and down manner forming the opening in the nipple. A holding device on the platform has a base and a cutout formed in a top surface of the base holding the nipple there within. The cutout is formed to hold the nipple so that an area of the nipple where the opening is formed is positioned in a bottom area of the cutout. A slot is formed in a bottom section of the cutout and extending through the base, the slot allowing the cutting unit to penetrate through the nipple and into the slot. The cutting unit contacts and stretches an interior wall of the nipple where the opening is to be formed reducing disfiguration where the opening is formed. When the cutting unit is withdrawn once the interior wall has been penetrated therethrough, the interior wall of the nipple where the opening is formed returning to an initial non-stretched state.

A method of making a barbed microcatheter having fluid egress openings includes obtaining a barbed microcatheter blank having a hollow tube with a proximal end, a distal end, and an elongated lumen that extends between the proximal and distal ends of the hollow tube, and first and second flattened regions that extend along opposite sides of the hollow tube. The method includes removing material from the first and second flattened regions of the barbed microcatheter blank to form barbs projecting outwardly from the opposite sides of the hollow tube, and using cutting elements for forming fluid egress openings in a wall of the hollow tube that are in fluid communication with the elongated lumen of the hollow tube. The method includes forming a tissue anchor that is connected with the proximal end of the hollow tube, and securing a surgical needle with the distal end of the hollow tube.

An inflatable web is disclosed. The web includes a first film and second film ply sealed together via a plurality of generally transverse seals. The transverse seals define first and second inflatable chambers. The inflatable chambers are inflatable with, and contain, a fluid. The web defines a separation region extending at least partially between the first and second inflatable chambers in a substantially transverse direction across the web and configured to facilitate separation of the first and second inflatable chambers. The separation region includes a tear initiation feature that facilitates tearing of the web to separate the first and second inflatable chambers. The separation region includes a tear propagation line at least partially longitudinally offset from the tear initiation feature, and close enough to the tear initiation feature that force imparted to the web via the tear initiation feature will tear of the web through the tear propagation line.

An inflatable web is disclosed. The web includes a first film and second film ply sealed together via a plurality of generally transverse seals. The transverse seals define first and second inflatable chambers. The inflatable chambers are inflatable with, and contain, a fluid. The web defines a separation region extending at least partially between the first and second inflatable chambers in a substantially transverse direction across the web and configured to facilitate separation of the first and second inflatable chambers. The separation region includes a tear initiation feature that facilitates tearing of the web to separate the first and second inflatable chambers. The separation region includes a tear propagation line at least partially longitudinally offset from the tear initiation feature, and close enough to the tear initiation feature that force imparted to the web via the tear initiation feature will tear of the web through the tear propagation line.