Automated production of canisters

Details Automated production of canisters Automated production of canisters

B - Operations, Transporting

01

D

183/37

B01D 50/00 (2006.01) A62B 23/02 (2006.01) B01D 46/52 (2006.01)

Patent

CA 1264681

ABSTRACT A filter canister for use with gas masks, and a method for fabricating the canister is disclosed. The canister has telescoping top and bottom parts that are, in the assembled canister, sealed together. A filter for particulate material is molded in situ in the top part, while a separate adsorbent material cartridge is fitted into the bottom part, In manufacturing the canister, the cartridge is manufactured separately, apart from the remainder of the canister so that it can be kept in a controlled environment so as to avoid possible contaminating due to a humid atmosphere. The molding of the filter for particulate materials,normally a pleated paper filter, in situ and away from the cartridge avoids the requirement for a long adhesive drying time during which the adsorbent material in the cartridge is exposed to humidity. The new canister also exhibits greater strength than the known canisters.

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