US 12,240,683 B2
Dispenser for pasty products with suction valve
Riccardo Alluigi, Alessandria (IT)
Assigned to Guala Dispensing S.P.A., Alessandria (IT)
Appl. No. 18/042,924
Filed by GUALA DISPENSING S.P.A., Alessandria (IT)
PCT Filed Oct. 27, 2021, PCT No. PCT/IB2021/059910
§ 371(c)(1), (2) Date Feb. 24, 2023,
PCT Pub. No. WO2022/090947, PCT Pub. Date May 5, 2022.
Claims priority of application No. 102020000025594 (IT), filed on Oct. 28, 2020.
Prior Publication US 2023/0365319 A1, Nov. 16, 2023
Int. Cl. B65D 83/00 (2006.01); B05B 11/02 (2023.01); B05B 11/10 (2023.01)
CPC B65D 83/0033 (2013.01) [B05B 11/028 (2023.01); B05B 11/103 (2023.01); B05B 11/1053 (2023.01)] 14 Claims
OG exemplary drawing
 
1. A manually operable head assembly for a dispenser for a pasty product, comprising:
a head made in a single piece of a plastic material, configured to be applied to a container tube of the dispenser, the head being provided with a dispensing tube comprising an opening for dispensing the pasty product and an initial section;
a pump, consisting of an internally hollow casing made in a single piece of a plastic material, comprising a pump neck slidingly inserted on the initial section of the dispensing tube, a dome-shaped cap joined to the pump neck, which is elastically deformable, and an annular connection portion joined to the dome-shaped cap; and
an actuator made in a single piece of a plastic material, movably supported by the head and configured to be manually operated to at least partially deform the pump and obtain dispensing of the pasty product;
wherein the pump further comprises a plurality of flexible flaps circumferentially spaced, internally protruding from the dome-shaped cap or from the annular connection portion, wherein each flexible flap of the plurality of flexible flaps is adapted to close a respective window of a plurality of windows of the container tube independently of the other flexible flaps for forming a lower or suction valve.