Filter frame

Details Filter frame Filter frame

B - Operations, Transporting

01

D

B01D 46/30 (2006.01) B01D 46/16 (2006.01) F24F 3/16 (2006.01) F24F 13/28 (2006.01)

Patent

CA 2053144

ABSTRACT A filter frame formed from a stock channel member having a generally U-shaped cross-sectional configura- tion. The channel member may be provided in stock lengths which may be cut on-site to the desired size to form each side of a filter frame when assembled togeth- er. The cut lengths of the channel members may be assembled together in the appropriate configuration to match the filter being replaced, and a mass of filter medium cut to a corresponding configuration and placed within the cavity formed by the u-shaped cross-section of the channel members to form the air filter. The channel members are also provided with a plurality of U-shaped grooves in the upstanding legs of the channel members which form tabs. The tabs may be advantageous- ly employed with a length of elongated material to form a protective screen. Specifically, a length of elon- gated material, such as string, may be wound about the tabs and across the length of the air filter to be wound through separate tabs. Repeating this process forms a substantially taught web of the elongated material which functions as a protective screen to maintain the filter medium in position.

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