Filter structure for removing contaminants from stream of fluid

摘要

Various methods and apparatus are disclosed that relate to one or more aspects of a filter structure that may remove contaminants from a stream of fluid. In various aspects the filter structure includes a front portion having a first orientation and a rear portion having a second orientation unique from the first orientation.

主权项

1. A filter structure for removing contaminants from a stream of fluid, comprising:
a generally rectangular front filter portion and a generally trapezoidal rear filter portion; said front filter portion including front frame structure supporting a first front filter and a second front filter in substantially parallel spaced relation to one another; said front frame structure, said first front filter, and said second front filter substantially surrounding a front clean air passageway; said rear filter portion including rear frame structure supporting a first rear filter and a second rear filter in substantially divergent spaced relation with one another; a less spaced end of said first rear filter and said second rear filter being proximal said front filter portion and a more spaced end of said first rear filter and said second rear filter being distal said front filter portion; said rear frame structure, said first rear filter, and said second rear filter substantially surrounding a rear clean air passageway; wherein said rear clean air passageway is in communication with said front clean air passageway and in communication with a filter structure outlet between said first rear filter and said second rear filter proximal said more spaced end of said first rear filter and said second rear filter.