Patent · US Active

Spiral wound element and seal assembly

US8778182B2 · kind B2 · utility

9Cited by

34References

4Claims

0Family size

Assignee

DOW GLOBAL TECHNOLOGIES LLC · US

Inventors

Jon E. Johnson · Plymouth, US
Matthew D. Mittag · Midland, US

Key dates

Filing date	Jul 28, 2011
Grant date	Jul 15, 2014
Priority date	—
Expiry date	Mar 10, 2033

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC02F2201/004
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A spiral wound element and a seal assembly comprising: a ring-shaped seal disposed about a portion of an outer periphery of the element, a secondary pathway and a valve that selectively permits fluid flow through the secondary pathway.

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