NESTABLE FRAMED PLEATED AIR FILTER AND METHOD OF MAKING

摘要

A nestable framed pleated air filter, including a non-self-supporting, compressible, pleated air filter media with a plurality of oppositely-facing pleats and with a plurality of upstream pleat tips and downstream pleat tips and downstream pleat valleys, the pleated air filter media further including a plurality of bridging filaments that are bonded to at least some of the upstream pleat tips. The filter includes a frame with sidewalls that are angled so that the framed pleated air filter is nestable.

主权项

1. A nestable framed pleated air filter, comprising:
a non-self-supporting, compressible, pleated air filter media with an upstream face and a downstream face and a generally rectangular perimeter with four major edges,
wherein the non-self-supporting, compressible, pleated air filter media comprises a plurality of oppositely-facing pleats with a pleat direction and with a plurality of upstream pleat tips and upstream pleat valleys and downstream pleat tips and downstream pleat valleys, the media further comprising a plurality of bridging filaments that are in discontinuous contact with the upstream face of the media and that are bonded to at least some of the upstream pleat tips; and, a frame comprising four major frame portions, with each major frame portion being mounted on one of the four major edges of the media,
wherein each major frame portion comprises a sidewall angle of from about 100 degrees to about 160 degrees and wherein the framed pleated air filter is nestable.