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:
May. 19, 2026
Filed:
Apr. 24, 2021
Silgan Dispensing Systems Corporation, Richmond, VA (US);
Eelco H. Deman, Waalwijk, NL;
Stefan Koster, Rottterdam, NL;
Silgan Dispensing Systems Corporation, Richmond, VA (US);
Abstract
A dispensing pump () includes a polymer compression spring (), base vents () and a flow baffle (). The dispensing pump includes a pump base (), and a dispensing head () having a piston stem (). The polymer compression spring assembly includes a slotted tubular spring element () and first and second loading cones received at opposing ends of the slotted tubular spring element. The venting ports allow air to escape when capping the container after filling and the flow baffle reduces or prevents the product from being pulled into the pump accumulator before residual air (headspace) has been evacuated from the container during the initial priming strokes.