초록 ▼

A filter element comprises a substrate constructed from at least two different materials. A first one of the materials has a first temperature at which the first material activates. A second one of the materials is at least a partially crystalline structure and has a second temperature which is lowe

A filter element comprises a substrate constructed from at least two different materials. A first one of the materials has a first temperature at which the first material activates. A second one of the materials is at least a partially crystalline structure and has a second temperature which is lower than the first temperature at which the second material activates. A porous membrane is supported by the substrate. An attachment is between the substrate and the membrane. The attachment results from the second material of the substrate activated at a temperature less than the first temperature to engage portions of the membrane at spaced apart locations and fix together the membrane and the substrate upon the second material cooled to a temperature less than the second temperature.

대표청구항 ▼

1. A filter element comprising:a substrate constructed from at least two different materials, a first one of said materials having a first temperature at which said first material activates and a second one of said materials being at least partially crystalline and having a second temperature which

1. A filter element comprising:a substrate constructed from at least two different materials, a first one of said materials having a first temperature at which said first material activates and a second one of said materials being at least partially crystalline and having a second temperature which is lower than the first temperature at which said second material activates; a porous membrane supported by said substrate; and an attachment between said substrate and said membrane, said attachment resulting from said second material of said substrate activated at a temperature less than the first temperature to engage portions of said membrane at spaced apart locations and fix together said membrane and said substrate upon said second material then cooling to a temperature less than the second temperature.