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.

Date of Patent:
Apr. 21, 2009

Filed:

Sep. 30, 2005
Applicants:

Fred W. Hoffman, Columbia Station, OH (US);

Leonard A. Quinn, Lagrange, OH (US);

Eugene E. Clair, Willoughby Hills, OH (US);

Inventors:

Fred W. Hoffman, Columbia Station, OH (US);

Leonard A. Quinn, Lagrange, OH (US);

Eugene E. Clair, Willoughby Hills, OH (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/26 (2006.01);
U.S. Cl.
CPC ...
Abstract

A cartridge for an air dryer includes a desiccant volume, a desiccant in the desiccant volume for removing at least one of moisture and contaminants from air, a first passage in fluid communication with the desiccant volume and a first air storage volume, a second passage in fluid communication with the desiccant volume and in fluid communication with a second air storage volume, and a valve which, in a first position, restricts the fluid communication between the desiccant volume and the first air storage volume.


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