Cylindrical filter screen with tensioning mechanism
AssigneeDow Global Technologies LLC
InventorsAbhishek Shrivastava, George D. Caffell, Thomas W. Stroud, David A. Voth, Tanya K. Krueger, Scott T. Burr, Gerald Drouin Corcoran, John H. Mallard, Michael J. Vosberg
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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).
Claims6
A filter assembly comprising a filter screen (27) comprising a band (27′) of porous material extending between two axially aligned opposing ends (38, 38′) which overlap each other from 10 to 100 mm and define a cylindrical periphery (29),
- wherein end (38) includes a radially inner surface (39) and end (38′) has a radially outer surface (39′) and wherein at least one of the inner surface (39) or outer surface (39′) includes a low friction coating or covering having a coefficient of friction less than 0.3 as measured by ASTM G115-10 (2013),
- wherein the assembly is characterized by the ends (38, 38′) being 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).
Dependencies are inferred from the claim text.