Cylindrical filter screen with tensioning mechanism

US10207205B2 · kind B2 · utility

Assignee

• DOW GLOBAL TECHNOLOGIES LLC · US

Inventors

• Abhishek Shrivastava · Edina, US
• George D. Caffell · Moss Beach, US
• Thomas W. Stroud · Newark, US
• David A. Voth · San Jose, US
• Tanya K. Krueger · San Jose, US
• Scott T. Burr · Midland, US
• Gerald Drouin Corcoran · Santa Clara, US
• John H. Mallard · Saratoga, US
• Michael J. Vosberg · Redwood City, US

Key dates

• Filing date: Nov 24, 2015
• Grant date: Feb 19, 2019
• Expiry date: Feb 5, 2036

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B04C2009/004
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A filter assembly including a filter screen (27) comprising a band (27′) of porous material extending between two axially aligned opposing ends (38, 38′) and defining a cylindrical periphery (29), wherein the ends (38, 38′) are each secured to a dynamic tensioning mechanism (46) that permits the ends (38, 38′) to move bi-directionally relative to one another about the periphery (29) of the filter screen (27).