The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 07, 2002
Filed:
Jun. 02, 2000
Robert John Phillips, Honiton, GB;
Normalair-Garrett (Holdings) Limited, Yeovil, GB;
Abstract
A molecular sieve type gas separation apparatus ( ) for separating product gas from a gas supply ( ) includes at least one sieve bed ( ) which during an adsorption charge phase of a cycle, adsorbs non product gas in the gas supply ( ), and in a desorption regeneration phase of the cycle desorbs the previously adsorbed non product gas. The apparatus further includes an outlet ( ) to which product gas is delivered during the adsorption charge phase, and an outlet ( ) for non product gas during the desorption regeneration phase. A sensor ( ) responsive to the concentration of a constituent in the product gas, and a control ( ) to switch the apparatus ( ) between the adsorption charge and desorption regeneration phases are further provided. The control ( ) is adapted to adjust the duration of adsorption charge phase relative to the duration of the desorption regeneration phase in each cycle.