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Patent AT-E401136-T1: [Translated] SIMPLIFIED AIRLESS DISPENSER PUMP FOR LIQUID PRODUCTS

Published by National Center for Biotechnology Information (NCBI) | U.S. Department of Health & Human Services | Metadata Last Checked: September 07, 2025 | Last Modified: 2025-09-06
An airless dispensing pump for liquid products including a push button with a spray nozzle which communicates with a network of channels that is provided locally on the wall of an internal truncated-cone-shaped bore, and a housing. An upper part of the housing includes a dosing cell having an elastically-deformable wall, which is equipped with an intake valve and topped with a rigid collar for fixing same inside the bore of the aforementioned button. Moreover, the outer periphery of the collar has an inclined face which defines a swirl chamber opposite the above-mentioned network, while the inner periphery thereof is quipped with a passage to the chamber.

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