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:
Jun. 02, 2026
Filed:
Oct. 10, 2019
Schroeder Industries, Llc, Leetsdale, PA (US);
Scott F. Surdick, Dormont, PA (US);
Christopher B. Bortnik, Warrendale, PA (US);
Michael Limbacher, Pittsburgh, PA (US);
SCHROEDER INDUSTRIES, LLC, Leetsdale, PA (US);
Abstract
A filter assembly with an authenticating filter element coupling, formed of the combination of a keyed bushing and locking guide, and replaceable drop-in twist locking filter element therefor. The keyed bushing is coupled a housing of the filter assembly and provides an authenticating mechanism for a replaceable filter element suited for the specific housing wherein the keyed bushing forms ½ of the authenticating coupling for the filter assembly. The locking guide is coupled to an endcap of a filter element and has a sleeve with slots in an end thereof that match keys of the associated keyed bushing on a filter housing. The locking guide forms ½ of the authenticating coupling for the filter assembly.