Abstract: A dispenser for pasty products which has a head, a pump, an actuator, and a container tube is provided. The pump is provided with a flexible annular lip protruding out of the pump and inserted into an initial section of a dispensing tube of the head, configured to sealingly come into contact with an initial surface of the initial section to form an upper or delivery valve.

Abstract: A trigger dispensing head applicable to a bottle suitable for containing a product to be dispensed is provided. The trigger dispensing head has valve elements having a dome-shaped valve body provided with an elastically deformable membrane. The elastically deformable membrane has an annular sealing ring that forms a head seal of a pre-stressing valve.

Abstract: A dispensing head for a trigger dispenser includes a frame having a functional zone on which a frame port, a suction outlet port and a dispensing inlet port open. A valve device applied to the functional zone includes a suction shutter and a dispensing shutter that implements a precompression of products before dispensing. The valve device cooperates with a reference plane of the frame to form a precompression chamber upstream of the dispensing inlet port.

Abstract: A dispenser for pasty products which has a head, a pump, an actuator, and a container tube is provided. The pump is provided with a plurality of flexible flaps protruding inwardly from a dome-shaped elastically deformable cap of the pump or from a connection portion of the pump to form a lower or suction valve.

Abstract: A trigger dispensing head for a compact dispenser is provided. The trigger dispensing head has a frame, a piston chamber, a piston, a dispensing pipe, a trigger, and a return element having two arms. Each arm of the two arms is arranged in a respective part of a sagittal plane. A lower backing part, supported by the frame, has a main surface. Lower ends of the return element are in contact with the main surface and freely movable thereon.

Abstract: Provided is a trigger dispensing head applicable to a bottle of a trigger dispensing device having a cylinder chamber, a main vent passage, a sleeve, a secondary vent passage, a manually-operable piston, a suction duct, and a dispensing duct. The sleeve is provided with an annular inner sleeve wall delimiting a pressure chamber, and an annular outer sleeve wall externally spaced from the annular inner sleeve wall.

Abstract: A trigger dispensing head for a dispensing device is provided. The trigger dispensing head has a frame, a manually operable trigger, a piston chamber, a piston, a dispensing duct, a suction duct, pre-compression valves, suction valves, a locking member and a nozzle having a gripping wall equipped with an actuation compartment and an interference element. The nozzle is movable between an opening position, in which the locking member is freely movable in the actuation compartment, and a closing position, in which the locking member engages the interference element, preventing an actuation stroke of the manually operable trigger.

Abstract: A manually operable head assembly for a dispenser for pasty products which has a fixed head with a dispensing duct for dispensing a product, a pumping unit with an elastically deformable cap, an actuator, a guarantee tab connected to the fixed head and having a tab body, and at least one bridge connected to the actuator is provided. The at least one bridge is suitable for breaking on a first operation of the actuator. The tab body is configured to remain connected to the fixed head following the first operation of the actuator.

Abstract: A trigger dispensing head applicable to a bottle of a trigger dispensing device is provided. The trigger dispensing head has a cylinder chamber, a main vent passage, a sleeve, a secondary vent passage, a piston, a suction duct, a dispensing duct and a labyrinth seal suitable for placing the main vent passage in fluidic connection with the external environment. The labyrinth seal is formed on either an external surface of the sleeve or an internal surface of the cylinder chamber.

Abstract: A trigger dispensing head applicable to a bottle of a trigger dispensing device is provided. The trigger dispensing head has a cylinder chamber, a main vent passageway, a sleeve, a secondary vent passageway, an axially slidable piston, a suction duct, and a dispensing duct. The sleeve is rotatable by a user between an angular working position in which the main vent passageway is in fluid communication with the secondary vent passageway and an angular rest position, in which the main vent passageway is fluidically separated from the secondary vent passageway.

Abstract: A trigger dispensing head applicable to a bottle of a trigger dispensing device is provided. The trigger dispensing head has a cylinder chamber, a main vent passageway, a sleeve, a secondary vent passageway, an axially slidable piston, a suction duct, and a dispensing duct. The sleeve is rotatable by a user between an angular working position in which the main vent passageway is in fluid communication with the secondary vent passageway and an angular rest position, in which the main vent passageway is fluidically separated from the secondary vent passageway.

Abstract: A trigger dispensing head of a trigger dispensing device is provided. The trigger dispensing head has a cylinder chamber, a piston, a pressure chamber, a sleeve having an end wall, a suction duct terminating in a suction mouth, a dispensing duct, and valve members for regulating flow of a product. The valve members have a valve element made in one piece. The valve element has a tubular portion, a flexible flap, and an annular membrane.

Abstract: A dispenser for pasty products which has a head, a pump, an actuator, and a container tube is provided. The pump is provided with a plurality of flexible flaps protruding inwardly from a dome-shaped elastically deformable cap of the pump or from a connection portion of the pump to form a lower or suction valve.

Abstract: A trigger dispensing head applicable to a bottle suitable for containing a product to be dispensed is provided. The trigger dispensing head has valve elements having a dome-shaped valve body provided with an elastically deformable membrane. The elastically deformable membrane has an annular sealing ring that forms a head seal of a pre-stressing valve.

Abstract: A connection system between a dispensing head and a bottle of a trigger dispensing device includes a skirt having a seat configured as an inlet on an inner surface, and a neck having a rib protruding from an outer surface. In a relative assembled position, the rib is angularly aligned with the seat while, outside of the relative assembled position, the rib constitutes an impediment to axial insertion of the skirt on the neck.

Abstract: A dispenser for pasty products which has a head, a pump, an actuator, and a container tube is provided. The pump is provided with a flexible annular lip protruding out of the pump and inserted into an initial section of a dispensing tube of the head, configured to sealingly come into contact with an initial surface of the initial section to form an upper or delivery valve.

Abstract: A trigger dispensing head for a compact dispenser is provided. The trigger dispensing head has a frame, a piston chamber, a piston, a dispensing pipe, a trigger, and a return element having two arms. Each arm of the two arms is arranged in a respective part of a sagittal plane. A lower backing part, supported by the frame, has a main surface. Lower ends of the return element are in contact with the main surface and freely movable thereon.

Abstract: A dispensing head for a trigger dispenser includes a frame having a functional zone on which a frame port, a suction outlet port and a dispensing inlet port open. A valve device applied to the functional zone includes a suction shutter and a dispensing shutter that implements a precompression of products before dispensing. The valve device cooperates with a reference plane of the frame to form a precompression chamber upstream of the dispensing inlet port.

Abstract: A trigger dispenser device (1) envisages a secondary liquid aspiration duct (50) in communication with the dispenser duct, and a primary liquid aspiration duct (8) in communication with the container, off-axis with each other. Between these, a joining compartment (64) is provided communicating upstream with the primary liquid aspiration duct (8) and communicating downstream with the secondary liquid aspiration duct (50) to form the fluidic connection between them. In particular, the container (C) is of the type with built-in suction pipe.