U-SHAPED FLUID TREATING FILTER

• US 3,810,350 A
• Filed: 04/24/1972
• Issued: 05/14/1974
• Est. Priority Date: 04/24/1972
• Status: Expired due to Term

• Current Assignee: American Air Filter Co., Inc. (Daikin Industries Ltd)
• Original Assignee: Howard O. Scholl
• Inventors: Scholl, Howard O.
• Primary Examiner(s): Nozick, Bernard
• Application Number:
  US05/246,780
• Time in Patent Office: 750 Days
• Field of Search: 55/486,487,490,493,500,508,513,514,527,528 40/125F 160/229
• US Class Current: 55/487
• CPC Class Codes: B01D 46/10 Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces

Abstract

An improved air filter of U-shaped configuration including a wire frame of generally U-shaped configuration and a mat of flexible filter material substantially coextensive with the wire frame, the wire frame including pivot means at the juncture of the sides with the base of the U-shaped frame to allow collapsing of the filter to a flat package, the filter including hook means for removably mounting of the filter in an air processing unit.

Claims

1. A generally U-shaped filter assembly adapted to be removably mounted in an air processing unit having receiving means for a generally U-shaped configuration including a base portion of substantially rectangular configuration formed of wires inCluding side and end wires and two side wire portions of substantially Ushaped configuration said base portion and said side portions being of a size sufficient to support filter media in an operating position, said side portions including means pivotally attaching opposed wires of said base portion to said side wire portions to define said U-shaped wire frame;

a mat of flexible filter material substantially coextensive with and attached to said wire frame; and

, mounting means attached to said side wire portions of said wire frame along sides of said side portions opposite said pivotally attachment with said base portion, said mounting means being for engageable mounting with support means in an air processing unit.

2. The generally U-shaped filter assembly of claim 1 wherein said mat of flexible filter material is of unitary construction having at least two portions of different concentrations of filaments.

3. The generally U-shaped filter assembly of claim 1 wherein said mounting means are generally U-shaped hooks pivotally attached to said side portions, said hooks being adaptable for engagement with an upwardly open support channel member, said channel member being attached to a wall in an air processing unit.

4. The generally U-shaped filter assembly of claim 3 wherein said mat of flexible filter material extends outwardly past said hooks whereby upon engagement of said hooks with said channel member, the outwardly extended portion of said filter material is pressed against said channel member providing a gas flow-through seal.

5. The generally U-shaped filter assembly of claim 1 wherein said wire frame includes a base portion of at least a pair of generally parallel longitudinally extending base wires, and two side portions, each side portion having a generally U-shaped wire, each of said U-shaped wires being pivotably attached to each of said parallel longitudinally extending base wires.

6. The generally U-shaped filter assembly of claim 5 wherein said base portion includes at least a pair of generally parallel transversely extending base wires disposed between and engaging with said longitudinally extending base wires, said transversely extending wires forming edges of said base portion.

7. The generally U-shaped filter assembly of claim 6 wherein said transversely extending base wires and said longitudinally extending base wires are in engagement at their extremities with extremities of said U-shaped side wires.

8. The generally U-shaped filter assembly of claim 7 including a plurality of generally T-shaped pivots with indentations in each end of said pivot for receiving extremities of said wires, each T-shaped pivot being in friction tight communication with one end of a transversely extending base wire, one end of a longitudinally extending base wire, and one extremity of a U-shaped side wire.