Abstract: A canister includes a case having a body, a fluid channel in the body having an adsorbent containing adsorption chamber, a cover plate closing an opening in the body, a push plate between the cover plate and the adsorbent, a biasing member between the push plate and the cover plate, and a filter. The case includes a filter supporting portion facing an outer peripheral edge of the filter that includes fused portions and non-fused portions to which the outer peripheral edge of the filter is fusion-bonded and not fusion-bonded, respectively. The fused portions and non-fused portions are arranged in an alternating manner about the filter supporting portion. The filter includes first portions and second portions pressed against the fused portions and non-fused portions, respectively, by the biasing member via the adsorbent. The first portions and the second portions are alternately arranged about the filter supporting portion.

Abstract: A canister includes a case having a fluid channel formed therein. In addition, the canister includes an adsorption chamber disposed in the fluid channel and containing an adsorbent. Further, the canister includes a filter disposed within the adsorption chamber and extending across an end portion of the adsorption chamber. The case may include a filter supporting portion facing the outer peripheral edge of the filter. The filter supporting portion may include fused portions to which the peripheral edge of the filter may be fusion-bonded and may also include non-fused portions to which the peripheral edge of the filter may not be fusion-bonded. The fused portions and the non-fused portions both may be disposed in an alternating manner in a lengthwise direction of the filter supporting portion about the filter supporting portion.