Timothy W Becker

US Patent:

20120097675, Apr 26, 2012

Filed:

Oct 20, 2011

Appl. No.:

13/277738

Inventors:

Aleko D. Sotiriades - Cedarburg WI, US
Timothy Fredrick Becker - Manitowoc WI, US

International Classification:

B65D 51/16

US Classification:

220202

Abstract:

A closure device, such as a fuel cap, for controlling evaporative emissions from a fuel tank. In one aspect, the invention comprises: a housing defining an internal chamber containing a hydrocarbon adsorbing media; a fuel vapor diffuser extending from a floor of the internal chamber and into the internal chamber, the fuel vapor diffuser comprising: (1) an inlet passageway extending from a fuel vapor inlet port to a plenum in a top portion of the fuel vapor diffuser; and (2) a downcomer passageway extending from the plenum to at least one aperture located at a bottom portion of the fuel vapor diffuser, the at least one aperture forming a passageway between the downcomer passageway and the internal chamber; and at least one outlet passageway extending from the internal chamber to an atmospheric air outlet port.