An apparatus may comprise: a metal pipe portion extending from a first end to a first transition end and defining a first radially outer surface and a first radially inner surface, the first transition end comprising a first tooth element and a second tooth element disposed circumferentially adjacent to the first tooth element; and a polymeric pipe portion having a second transition end and defining a second radially outer surface and a second radially inner surface, the second transition end having a complimentary shape to the first transition end, the second transition end coupled to the first transition end.

The lid portion has a first body, a first rib protruding from the first surface of the first body and extending along the first surface, and the storage section has a second body, a second rib protruding from the second surface of the second body and extending along the second surface. The first and second ribs have main welded portions welded at intersections crossing each other, and the lid portion and/or the storage portion has main welded portions extending from one of the first and second ribs to the other between the main welded portions adjacent to each other. The lid portion and/or the storage section has an auxiliary rib extending from one of the first and second ribs to the other between the adjacent main welded portions, and the auxiliary rib has a sub-welded portion that is welded to the other at the intersection with the other.

A pair of thermoplastic resin members are placed on an anvil. A pressing force of a tool horn vibrating ultrasonically in a direction not perpendicular to but along upper surfaces of the pair of thermoplastic resin members is applied to the upper surfaces. The application of the pressing force of the tool horn vibrating ultrasonically allows melting of a vicinity of the upper surfaces of the pair of thermoplastic resin members. A welded structure part is formed on an unwelded structure part, thereby welding the pair of thermoplastic resin members as an overlap structure including the welded structure part arranged on the unwelded structure part. The distance and positional relationship between the pair of thermoplastic resin members after the welding are unchanged before and after the welding. The surfaces, placed on the anvil, of the thermoplastic resin members are neither burned nor discolored.

A yarn or thread may include a plurality of substantially aligned filaments, with at least ninety-five percent of a material of the filaments being a thermoplastic polymer material. Various woven textiles and knitted textiles may be formed from the yarn or thread. The woven textiles or knitted textiles may be thermal bonded to other elements to form seams. A strand that is at least partially formed from a thermoplastic polymer material may extend through the seam, and the strand may be thermal bonded at the seam. The woven textiles or knitted textiles may be shaped or molded, incorporated into products, and recycled to form other products.

The present invention relates to an apparatus for producing a gathered material, wherein the material consists of two material web portions and a thread positioned between the material web portions and the two material web portions are connected to one another at two connecting surfaces, wherein the thread is disposed between the two connecting surfaces such that the thread is connected to the material web portions, wherein the apparatus comprises a sonotrode having a first sealing surface and a counter tool having a second sealing surface, wherein the counter tool is cylindrical with a lateral surface and a cylinder axis and the second sealing surface is disposed on the lateral surface, wherein the sonotrode and the counter tool are disposed with respect to one another in a processing position such that the material web portions and the thread can be guided through a gap formed by the first and the second sealing surface in a feed direction tangential to the lateral surface of the counter tool. To overcome or at least mitigate the described drawbacks, it is proposed according to the invention that the sonotrode comprise a groove which is oriented in feed direction and extends over the entire first sealing surface for receiving the thread.

A method of bonding a first web of material to a second web of material to form a composite material is disclosed herein. First, a first web of material and a second web of material moving in a machine direction is provided. The webs of material pass over a first energy application device extending transverse in the cross-machine direction. The first energy application device includes a primary bonding pattern and a secondary bonding pattern. The primary bonding pattern in combination with the secondary bonding pattern extends continuously across the first energy application device in the cross-machine direction. In addition, a second energy application device is provided. The second energy application device is moved in the cross-machine direction, and thereby extending the second energy application device over the first energy application device and operating the first and second energy application devices in combination to bond a composite web.

Process for forming a permanent join between two sections of fibrous material contained in a thermosetting resin matrix, said process comprising overlaying the two sections and subjecting the overlaid sections to ultrasonic welding to form a permanent join between the two sections, wherein there is no significant change in the sub-ambient Tg of the fibrous material contained in the thermosetting resin matrix in the region of the permanent join.

A protective packaging formation device is provided herein. The device includes an inflation assembly having a fluid conduit that directs fluid between overlapping plies of a polymeric web. The device also includes a driving mechanism that drives the film in a downstream direction. The device also includes a sealing mechanism that includes a thin film heater that heats the plies to create a longitudinal seal that seals the plies of film together. The driving mechanism drives the web such that the web slides across the heating assembly in a downstream direction to trap fluid between the plies.

The lid portion has a first body, a first rib protruding from the first surface of the first body and extending along the first surface, and the storage section has a second body, a second rib protruding from the second surface of the second body and extending along the second surface. The first and second ribs have main welded portions welded at intersections crossing each other, and the lid portion and/or the storage portion has main welded portions extending from one of the first and second ribs to the other between the main welded portions adjacent to each other. The lid portion and/or the storage section has an auxiliary rib extending from one of the first and second ribs to the other between the adjacent main welded portions, and the auxiliary rib has a sub-welded portion that is welded to the other at the intersection with the other.

A protrusion on a first member made of synthetic resin wherein a laser beam is applied to a side surface of the protrusion in a state in which a top surface of the protrusion of the first member is abutted against a second member made of synthetic resin, so as to melt at least the entire top surface of the protrusion and melt a portion of the second member in contact with the protrusion by heat of the melted top surface of the protrusion, followed by solidification of the melted portions, whereby the first member and the second member are welded together.