Filtration element having a variable density sidewall

Details Filtration element having a variable density sidewall Filtration element having a variable density sidewall

2011-06-07

2011-06-07

Smith, Duane (Department: 1776)

Gas separation

Flexible or collapsible bag type

Seaming, reinforcing or bag structure

C055S382000, C055S486000, C055S524000, C055S527000

Reexamination Certificate

active

07955407

ABSTRACT:
A filter made of specifically arranged filaments. The filter has an upstream side where fluid enters and a downstream side where fluid exits. The filaments are greatest in diameter near the upstream side wherein the filaments continuously and gradually decrease in thickness toward the downstream side. The pores or spaces between the filaments are largest near the upstream side and decrease gradually toward the downstream side. This allows various size particles to become entrained in the filter in an evenly distributed manner.

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