Guala Dispensing S.P.A.

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.

A trigger head for a dispensing device for a liquid product that is usable an “upright” configuration and an “upside down” configuration has an attachment having an attachment suction chamber, a multifunction chamber and an auxiliary passage. The trigger head has multifunction valves operating in the multifunction chamber, which, in the “upright” configuration, close a communication between the multifunction chamber and a bottle compartment of a bottle of the dispensing device and, in the “upside down” configuration, close a communication between a multifunction passage of the multifunction chamber and a venting conduit of the trigger head.

A main valve body of a trigger dispensing head is made in one piece and has a substantially flat body base, an annular inner body wall, a shutter, an annular dispensing lip, a dispensing passage, and an outer body wall for protecting the annular dispensing lip.

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.

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.

A trigger dispensing head for a dispensing device has a frame, a cylinder wall that delimits a cylinder chamber, a sleeve inserted into the cylinder chamber, a dispensing duct, a suction duct and valves for adjusting a flow of a product to be dispensed. The valves have a valve element having a support wall made of an elastically deformable material that is engaged between the sleeve and the cylinder wall to form a seal against leakage of the product.

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.

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.

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.

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.