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:
Jul. 11, 2017
Filed:
Dec. 20, 2011
James N. Marshall, Elm Creek, NE (US);
Timothy L. Krull, Kearney, NE (US);
James N. Marshall, Elm Creek, NE (US);
Timothy L. Krull, Kearney, NE (US);
Baldwin Filters, Inc., Kearney, NE (US);
Abstract
A filter apparatus and filter element therefore are provided. The filter apparatus includes a filter head including an inlet port, a main flow outlet port and a drain flow outlet port. The filter element includes a ring of filter media defining an internal cavity. The filter element defines a main flow passage and a drain flow passage through the internal cavity. Each flow passage has an inlet on a clean side of the filter media directly fluidly communicating with the internal cavity. The main flow passage is fluidly coupled to the main flow outlet port. The drain flow passage (or air bleed passage) is fluidly coupled to the drain flow outlet port and includes (i) a restrictionsized large enough to allow air flow and small enough to prevent substantial liquid flow and (ii) a check valvelimiting flow to a single direction. The filter media separates the inlet port from the main flow and drain flow outlet ports.