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US 12,337,338 B2Granted
Dispensers for pasty products with delivery valve
AssigneeGuala Dispensing S.P.A.
InventorRiccardo Alluigi
Life of this patent
Estimating the term…
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.
Claims14
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 having an opening for dispensing the pasty product, and an initial section;
- a pump, consisting of an internally hollow shell 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 connected to the pump neck, which is elastically deformable, and an annular connection portion connected 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 comprises a flexible annular lip, protruding externally to the pump and inserted into the initial section and configured to sealingly come into contact with an initial surface of the initial section to form an upper or delivery valve, wherein the flexible annular lip comprises a sealing portion configured to be elastically deformable radially toward inside the initial section and separate from the initial surface,
- wherein the pump further comprises a bottom supported by the pump neck, provided with a plurality of bottom openings, and the initial section of the dispensing tube is engageable with the bottom openings to form an intermediate or shutter valve, and
- wherein the upper or delivery valve and the intermediate or shutter valve are separated axially along the initial section, thereby delimiting an annular passageway chamber therebetween.
4 more elements
A dispenser for a pasty product, comprising:
- a container tube made in a single piece of a plastic material, having a tube compartment for containing the pasty product;
- a manually-operable head assembly comprising:
- a head made in a single piece of a plastic material, configured to be applied to the container tube of the dispenser, the head being provided with a dispensing tube having an opening for dispensing the pasty product, and an initial section;
- a pump, consisting of an internally hollow shell 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 connected to the pump neck, which is elastically deformable, and an annular connection portion connected 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 comprises a flexible annular lip protruding externally to the pump and inserted into the initial section and configured to sealingly come into contact with an initial surface of the initial section to form an upper or delivery valve, wherein the flexible annular lip comprises a sealing portion configured to be elastically deformable radially toward inside the initial section and separate from the initial surface, applied to the container tube;
- and
- a separating wall placed between the tube compartment and the pump, provided with windows,
- wherein the pump further comprises a bottom supported by the pump neck, provided with a plurality of bottom openings, and the initial section of the dispensing tube is engageable with the bottom openings to form an intermediate or shutter valve, and
- wherein the upper or delivery valve and the intermediate or shutter valve are separated axially along the initial section, thereby delimiting an annular passageway chamber therebetween.
8 more elements
Dependencies are inferred from the claim text.