Patent ID: 11890560
Assignee: ENTEGRIS, INC.
Field: Chemical engineering (Chemistry)
Classification: CPC B  H | IPC B  H

Claim 0:
1. An electrostatic mitigation filter comprising:
a filter element,
a filter housing made of a first polymeric material,
first and second endcaps mounted to opposite ends of the filter housing and made of a second polymeric material different from the first polymeric material of the filter housing, each of the one or more endcaps is a conductive endcap comprising one or more connector fittings to connect each endcap to a tubing segment of a fluid circuit to provide a fluid passageway from a first tubing segment through one endcap and housing to another endcap and a second tubing segment,
an electrically conductive polymer sleeve that comprises electrically conductive fluoropolymers selected from the group consisting of perfluoroalkoxy alkane polymer (PFA), ethylene and tetrafluoroethylene polymer (ETFE), ethylene, tetrafluoroethylene and hexafluoropropylene polymer (EFEP), fluorinated ethylene propylene polymer (FEP), polychlorotrifluoroethylene (PCTFE), and mixtures thereof, and
one or more electrically conductive polymer tie bands comprising electrically conductive polyolefins, wherein the one or more electrically conductive polymer tie bands are connected electrically and conductively with the electrically conductive polymer sleeve to ground, wherein the filter element is within an interior of the filter housing, and the electrically conductive polymer sleeve extends over an exterior surface of the filter housing from the first end cap to the second end cap and provides an electrically conductive connection with the one or more electrically conductive polymer tie bands.