Vapor storage canister with foam screen retainer

Details Vapor storage canister with foam screen retainer Vapor storage canister with foam screen retainer

1997-03-14

1998-07-07

Smith, Duane S.

Gas separation: apparatus

Solid sorbent apparatus

Plural diverse separating means

96139, 96141, 96144, 96152, 123519, B01D 5304

Patent

active

057762287

ABSTRACT:
A fuel vapor storage canister having a screen module between carbon granules in the canister and a purge port of the canister. The screen module includes a module body defining a plenum, a flat plastic foam screen seated on an uninterrupted edge of a raised boss on the module body around the plenum, and a retainer clamped to the module body over the flat foam screen. A tubular stem on the module body plugs into a socket in the storage canister. An interference fit between the tubular stem and the socket prevents migration of carbon granules between the socket and the tubular stem. The foam screen is exposed to the carbon bed chamber through a window in a planar side of the retainer which planar side, in a seated position of the retainer on the module body, cooperates with the uninterrupted edge of the raised boss in compressing a segment of the foam screen to define a seal around the window. Hooks on the module body cooperate with resilient loops on the retainer in maintaining the integrity of the seal around the foam screen by preventing release of the retainer from its seated position on the module body.

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