The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 24, 2024
Filed:
May. 11, 2020
Aptar France Sas, Le Neubourg, FR;
Ludovic Petit, Vitot, FR;
APTAR FRANCE SAS, Le Neubourg, FR;
Abstract
A pump having a piston () sliding in a body () having a chamber () between an inlet valve () and an outlet valve (), an outlet valve element sliding during actuation in the chamber (), and a passage () wherein, at end of actuation, the outlet valve element () cooperates in a non-sealing manner with the passage to open the outlet valve. The inlet valve has an inlet valve element () that slides after closure in a sleeve () with reduced diameter and a spring () bearing on the inlet valve element and on a bottom of the sleeve. The spring () returns the piston into its rest position. The sleeve () has an inner diameter of less than 4.2 mm. The spring () has a force of at least 20 N, so that the pump delivers the fluid product at a pressure (P) of at least 15 bars.