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:
Dec. 27, 2022
Filed:
May. 24, 2021
Rieke Packaging Systems Limited, Leicester, GB;
Simon Christopher Knight, Bridgend Mid Glamorgan, GB;
Abstract
A dispenser pump is constituted by a closure body (), a diaphragm body () which forms a pump chamber with the closure body and optionally a top actuator () for pressing the diaphragm body (). The diaphragm body has a deformable wall () formed integrally in the same polymer as its annular mounting portion (). An inlet valve () through the floor () of the closure body has a flap () which is formed and hinged integrally with that floor (). An outlet valve may also be formed in the same polymer, either integrally with the diaphragm body or as a separate component. The deformable wall of the diaphragm body is shaped to generate a restoring force itself without a separate spring, so that the entire pump may be made from the same polymer e.g. polypropylene and without metal components.