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:
Jan. 20, 1976
Filed:
Mar. 18, 1974
George E Wilson, Carmichael, CA (US);
Other;
Abstract
Flocculation is carried out by mixing a coagulant, such as alum, with the fluid to be treated, such as water, and introducing the resultant mixture into the upstream end of a conductor. In a preferred form, the conductor comprises a series of discrete pipe sections, each downstream section having a progressively larger diameter and length with diverging transition members connecting adjacent sections. The sizes of the sections and the transition members are carefully predetermined, as is the radius of curvature of the coil, in the event the pipe is wound, so as to afford a velocity gradient and flow condition throughout the length of the pipe yielding optimum results. Modified forms of continuous decayed velocity gradient systems are also disclosed. One form uses a coiled pipe wherein the pipe diameter is constant and the coil radius of curvature progressively increases. Another form utilizes staged compartments, each upstream compartment feeding each adjacent downstream compartment across progressively decreasing differential heads.