A pipe joining material for connecting pipes and fittings and a method of making a pipe joining material are provided. The pipe joining material may include a thermoplastic material such as polyvinyl chloride (PVC) and/or chlorinated polyvinyl chloride (CPVC) and a bonding agent for the thermoplastic material.

A sonotrode includes multiple layers of a material melted to one another to form a structure. The structure provides a base that has an attachment feature that is configured to operatively secure to an ultrasonic converter. The structure includes a shaft that extends from the base to a terminal end that provides a working surface that is configured to selectively engage a workpiece. The structure has at least one shaft that includes a first shaft that extends from the base to a first terminal end that provides a first working surface that is configured to selectively engage a workpiece. The first shaft is integrally formed with the base from the multiple layers to provide an unbroken, monolithic construction.

A moveable seam welding machine, system, and method of use is provided. The seam welding machine includes at least one sensor that generates at least one data point having geolocation coordinates incorporated or integrally formed therewith. The data point typically relates to the integrity or quality of the welded seam created by the machine. The sensor generates data points which may be evaluated in alarm logic for abnormalities or anomalies. The geolocation coordinates inherent or integral to the data point may be plotted or registered overtop satellite imagery. The coordinates of the anomalies or the registered image, or both, can be provided to the workman or operator so he/she may manually inspect the geolocation at where the abnormal or anomaly data point was generated by the sensor to spot check the welded seam by hand.

A moveable seam welding machine, system, and method of use is provided. The seam welding machine includes at least one sensor that generates at least one data point having geolocation coordinates incorporated or integrally formed therewith. The data point typically relates to the integrity or quality of the welded seam created by the machine. The sensor generates data points which may be evaluated in alarm logic for abnormalities or anomalies. The geolocation coordinates inherent or integral to the data point may be plotted or registered overtop satellite imagery. The coordinates of the anomalies or the registered image, or both, can be provided to the workman or operator so he/she may manually inspect the geolocation at where the abnormal or anomaly data point was generated by the sensor to spot check the welded seam by hand.

A machine for converting two different types of webs of inflatable material to two different types of inflated cushioning material includes an inflation arrangement, a sealing arrangement, and a tensioning device. The inflation arrangement is configured to provide air at a lower pressure to a first web of a first type of inflatable material to inflate the first type of inflatable material, and to provide air at a higher pressure to a second type of inflatable material to inflate the second type of inflatable material. The inflation arrangement includes a guide pin configured to the first and second webs and align the first and second webs on the machine. The sealing arrangement is configured to seal the first type of inflatable material and the second type of inflatable material to create the two different types of inflated cushioning material. The tensioning device is configured to provide a lower tensioning force to the first web as the first web moves between the inflation arrangement and the sealing arrangement, and to provide a higher tensioning force to the second web as the second web moves between the inflation arrangement and the sealing arrangement.

A system and method for thermoplastic composite welding comprising a cooling means and a heat source. The cooling means cools a heat-side laminate so as to create a thermal gradient in the heat-side laminate. The heat source heats the heat-side laminate after the cooling step is initiated but before the thermal gradient dissipates so that a first side of the heat-side laminate closer to the heat source does not deform as faying surfaces of the heat-side laminate and another laminate farther away from the heat source are welded together.

A method of induction welding a first thermoplastic composite (TPC) to a second thermoplastic composite (TPC) includes inductively heating a weld interface area between the first TPC and the second TPC, and cooling a surface of the first TPC opposite the weld interface area while inductively heating the weld interface area.

Aspects of the disclosure relate to envelopes for aerial vehicle. The aerial vehicle may include an envelope including a plurality of gores. The aerial vehicle may also include a seal arranged between a pair of the plurality of gores, the seal including six layers of envelope material heat-sealed together.

A heat sink for use in induction welding includes a number of tiles, where the tiles are electrically non-conductive and thermally conductive, a joint flexibly joining the tiles together, and a fluid path formed through the heat sink for communicating a coolant therethrough.

A heat sink for use in induction welding includes a flexible backing and a number of tiles disposed on the flexible backing in a single layer, wherein the tiles are electrically non-conductive and thermally conductive.