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:
Jun. 30, 1981
Filed:
Jun. 19, 1979
Jacob Shorr, Lexington, MA (US);
Systems Engineering & Manufacturing Corp., Stoughton, MA (US);
Abstract
A low pressure, high flux water purification system. In a continuous loop recirculation system metal hydroxides are employed to bind impurities in wastewater into particles of a size greater than ten angstroms which are then separated from the water by means of an ultrafiltration membrane. A large metal hydroxide/impurity ratio is maintained thereby permitting a purified water flux of over 30 gfd using filter tubes of diameter greater than 100 mils and length greater than 6 inches under a wastewater pressure as low as 9 psig. The filter tubes are grouped in bundles, each bundle within its own water collecting box, so that system down time is minimized and purification standards may be maintained in the event of a partial failure of the system.