Patent · US Active

Variable flow screen nozzle

US8876017B2 · kind B2 · utility

2Cited by

14References

25Claims

0Family size

Assignee

Bilfinger Water Technologies, Inc. · DE

Inventors

Michael Ekholm · Minneapolis, US
Richard C. Maxson · Maple Grove, US

Key dates

Filing date	Jul 13, 2011
Grant date	Nov 4, 2014
Priority date	—
Expiry date	Jul 2, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/7866
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A variable flow control nozzle has a head, a tube, and a valve. The head disposes adjacent an opening and has a screen for passage of fluid flow into and out of the head's interior. The tube extends from the head through the opening and secures the head thereto. A tube passage communicates the interior of the head with the other side of the opening. The valve disposed in the passage has a first condition permitting first fluid flow from the passage to the interior of the head and has a second condition permitting second fluid flow from the interior to the passage. The second fluid flow may be greater than the first fluid flow. The tube can have first and second tube members with different internal diameters, and the valve can use a ball movable between positions in the tube members.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.