Abstract: Heat exchanger comprising at least a first plate (11) and at least a second plate (12) overlapping and reciprocally joined to each other in correspondence with respective coupling surfaces (13). Between the coupling surfaces (13), at least one passage channel (14) for a heat-carrying fluid is made, by deforming at least one of the two plates (11, 12).

Abstract: Apparatus for manufacturing pillows, comprising: at least one first bobbin of a first fabric and a second bobbin of a second fabric, means adapted to place the first fabric on the second fabric along their advancement path, means configured to drag the fabrics, a pair of side welding devices for welding the side edges of first and second fabrics, a transverse welding device adapted to weld the fabrics found in a tubular envelope transversally to the advancement path for forming a pillowcase, a press for pressing the first fabric onto the second fabric when the length of the pillow reaches the desired length, means adapted to insert material inside the pillowcase, means for cutting the fabrics welded by the transverse welding device to separate the pillow from the successive pillow.

Abstract: Apparatus for manufacturing pillows, comprising: at least one first bobbin of a first fabric and a second bobbin of a second fabric, means adapted to place the first fabric on the second fabric along their advancement path, means configured to drag the fabrics, a pair of side welding devices for welding the side edges of first and second fabrics, a transverse welding device adapted to weld the fabrics found in a tubular envelope transversally to the advancement path for forming a pillowcase, a press for pressing the first fabric onto the second fabric when the length of the pillow reaches the desired length, means adapted to insert material inside the pillowcase, means for cutting the fabrics welded by the transverse welding device to separate the pillow from the successive pillow.