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US 3,944,403 AGranted
Adsorptive devices
AssigneeSiebe Gorman & Company Limited
InventorsKeith Simpson, Frederick Arthur Pomroy Maggs
Life of this patent
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Abstract
An adsorptive device having at least one composite adsorptive element through which gas can pass comprising a bed of granular adsorptive carbon and a bed of fibrous adsorptive carbon.
Claims8
An adsorptive device comprising:
- a. a housing having a gas inlet and a gas outlet;
- and
- b. at least one composite adsorptive element, said element being supported in said housing in the gas path through said housing from said inlet to said outlet, said element comprising a bed of adsorptive carbon in granular form, said granular carbon bed having a depth of at least 4 centimeters, and a bed of adsorptive carbon in fibrous form comprising at least three layers of charcoal cloth, said fibrous carbon bed being situated downstream of said granular carbon bed.
Dependencies are inferred from the claim text.