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:
Nov. 23, 1982
Filed:
Oct. 16, 1981
Stefan Asztalos, Munich, DE;
Linde Aktiengesellschaft, Wiesbaden, DE;
Abstract
An apparatus and process for controlling the opening and closing of valves in lines interconnecting a plurality of adsorbers in a cyclically operating pressure-swing adsorption apparatus includes a common pneumatic signal line associated with all the valves of a single line. An electrical signal supply provides an electronic signal to a current-pressure transducer for converting the electronic signal to a pneumatic signal transmitted through the common pneumatic signal line. Transmission of the pneumatic signal to the valves is controlled by three-way magnetic valves which are operated by a computer which transmits an on-off digital signal to each three-way valve. According to the digital signal transmitted by the computer, each three-way valve will either allow said pneumatic signal to be transmitted to a respective valve associated therewith for causing the valve to open, or prevent the pneumatic signal from affecting the respective valve thus maintaining it closed.