John E Meng

US Patent:

8047228, Nov 1, 2011

Filed:

Feb 23, 2005

Appl. No.:

11/064638

Inventors:

Robert Gail Depierri - Baton Rouge LA, US
Ronald Francis Mire - Port Allen LA, US
John Louis Meng - Baton Rouge LA, US

Assignee:

ExxonMobil Chemical Patents Inc. - Houston TX

International Classification:

B29C 47/68

US Classification:

137547, 137550, 25131516, 422131

Abstract:

This invention relates to a valve assembly comprising (a) a valve body defining a valve chamber, an inlet port and a discharge port, wherein the inlet port and discharge port communicate with the valve chamber; and (b) a valve member in the valve chamber, the valve member comprising a passage having (1) a first opening and (2) a second opening housing a filter having an inlet surface proximate to the inlet port and a discharge surface proximate to the discharge port, wherein the passage communicates with the inlet port and discharge port, and wherein the valve member is moveable to alternately juxtapose the inlet port and either the filter inlet surface or the filter discharge surface. The invention further relates to a particulate material metering and/or feed system comprising the valve assembly.