Adsorptive process for selective separation of gases
Patent 3977845 Issued on August 31, 1976. Estimated Expiration Date: 
August 31, 1993. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
August 31, 1993. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3142547 3405507 3712027 3738087 3788036 3797201 3893827 InventorApplicationNo. 05/588707 filed on 06/20/1975US Classes:95/100, Stepped pressure reduction95/130Nitrogen sorbedExaminersPrimary: Wyse, Thomas G.Assistant: Spitzer, Robert International ClassB01D 53/047 (20060101)AbstractGas mixtures are separated in selective adsorbent beds to produce a product stream of gas in a process utilizing a segregated storage tank containing selective adsorbent material to depressurize and repressurize the selective adsorbent beds as required. This process conserves valuable product gases ordinarily diverted to a waste stream and permits continuous, uninterrupted delivery of product. | |
