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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.:

US 11028954 B1

PDFFull Text
Date of Patent:
Jun. 08, 2021

Filed:

Jun. 20, 2019

Accumulator having a diaphragm or bladder with a metallized barrier film

Applicant:

Freudenberg-nok General Partnership, Plymouth, MI (US);

Inventors:

Joe Walker, Tecumseh, MI (US);

Paul J. Hochgesang, Ann Arbor, MI (US);

Nate Tuckerman, Plymouth, MI (US);

Assignee:

Freudenberg-NOK General Partnership, Plymouth, MI (US);

Attorneys:

Daniel J. Sepanik, Esq.

Harness, Dickey & Pierce, P.L.C.

Primary Examiner:

Patrick F Brinson

Int. Cl.
CPC ...
F16L 55/053 (2006.01); B32B 7/12 (2006.01); B32B 25/08 (2006.01); C23C 14/20 (2006.01);
U.S. Cl.
CPC ...
F16L 55/053 (2013.01); B32B 7/12 (2013.01); B32B 25/08 (2013.01); C23C 14/20 (2013.01); B32B 2255/10 (2013.01); B32B 2255/205 (2013.01); B32B 2307/7242 (2013.01); B32B 2307/732 (2013.01);
Abstract

A diaphragm and a bladder for an accumulator each include a thermoplastic film formed in a dome or bulbous shape. A metallic vapor deposition layer is disposed on at least one side of the thermoplastic. Inner and outer rubber layers are adhered on opposite sides of the metallic coated film so that the metallized thermoplastic film provides a barrier film to effectively slow the permeation of a gas such as nitrogen through the diaphragm or bladder.

Find Patent Forward Citations

Walker, Joe. (2021). Accumulator having a diaphragm or bladder with a metallized barrier film (U.S. Patent No. 11028954). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11028954

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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