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:
Nov. 30, 2004
Filed:
May. 24, 2000
Kenneth Pawson, Northampton, GB;
William C. Haberkamp, Cookeville, TN (US);
Fleet Guard, Inc., Nashville, TN (US);
Abstract
An exhaust aftertreatment filter ( ) includes a housing ( ) extending axially along an axis ( ) between distally opposite first and second ends ( and ), a first port ( ) at the first end of the housing, a second port ( ) also at the first end of the housing, one of the first and second ports being an inlet, and the other being an outlet, the housing having an intermediate section ( ) between the distally opposite ends, the intermediate section having a given cross sectional area A along a sectional plane transverse to the axis, a catalytic exhaust filter element ( ) in the intermediate section and entirely filling the cross sectional area A except for a smaller cut-out ( ) in the exhaust filter element of cross sectional area A , the exhaust filter element having a cross sectional area A =A −A , a transfer tube ( ) extending through the cut-out and communicating with the second port. Exhaust flows axially ( ) through the exhaust filter element between first and second distally opposite sides ( and ) of the exhaust filter element, the first side facing the first end of the housing, the second side facing the second end of the housing, exhaust flowing axially through the exhaust filter element in one axial direction ( ) and flowing through the transfer tube and cut-out in the opposite axial direction ( ).