A liquid dispensing device includes a dispensing head, an outlet valve and a nozzle. The dispensing head includes an inlet valve, a piston and a piston chamber, an actuator for controlling the piston, and a buffer or bladder. The outlet valve has a defined minimum opening pressure and is in direct fluid communication with either the buffer or bladder, or both the buffer or bladder and the piston chamber. The nozzle, with a defined throughput, is in fluid communication with the outlet valve. A volume of the piston chamber, a volume of the buffer, a pressure response of the buffer, the throughput of the nozzle, and the minimum opening pressure of the outlet valve are together arranged to restrict the outlet pressures of liquid droplets exiting the nozzle within a defined range of from (P??P) to (P+?P), where P is a nominal pressure and ?P a maximum pressure variation.

To achieve universal welding of thermoplastic workpiece parts with simple equipment, an infrared light transmission welding method is disclosed in which simple polychromatic, incoherent infrared light is generated by a simple infrared light source and is directed through a first workpiece part to a weld point for the purposes of connection to a second workpiece part. In particular, the infrared light is directed through a transparent bracing element.

A device for welding the bottom flange of a stiffener on the side of a skin. The stiffener and the skin are made of a composite comprising a thermoplastic polymer matrix. The device comprises a punch, an anvil and a press to make a clamping between the punch and the anvil. The punch comprises a part forming a pressure table with a cross-section width less than or equal to the width of the stiffener bottom flange and a heating element with width less than the width of the pressure table. The anvil comprises a cooling component and has a cross-section width smaller than the width of the skin. A method for implementing the device.

A device for adhering different kinds of materials is configured to adhere a metal material and a composite material having an adhering hole. The device includes a frame having first and second free ends that face each other. A laser head is provided at the first free end of the frame and irradiates a laser beam to an adhering point of the metal material. An upper tool moves back and forth at the first free end of the frame and presses the metal material. A lower tool is fixed to the second free end of the frame so as to correspond to the upper tool and supports an adhering point of the composite material. An air suction member is connected to the lower tool to suck air between the lower tool and the adhering hole of the composite material.

A device for producing a packaged electrode having an electrode sandwiched between a pair of separators includes: a conveyance unit configured to sequentially overlay the electrode and the pair of separators from a front end side in a conveying direction while conveying the electrode and the pair of separators; a joining unit configured to join lateral edges of the pair of separators together, the lateral edges being positioned in a direction intersecting the conveying direction; and a controller configured to control operations of the conveyance unit and the joining unit. The controller is configured to repeatedly perform joining a plurality of times from the front end side in the conveying direction, each of the joining being performed while moving the joining unit so that a speed of the joining unit relative to a conveyance speed of a workpiece approaches zero.