William C Peebles

US Patent:

45212341, Jun 4, 1985

Filed:

Jul 19, 1983

Appl. No.:

6/515370

Inventors:

William C. Peebles - Washington NC
Cecil W. Bowers - Washington NC

Assignee:

Flanders Filters,Inc. - Washington NC

International Classification:

B01D 4600

US Classification:

55481

Abstract:

A housing for HEPA filters is disclosed, which includes a side access opening for receiving one or more filters, and a filter clamping assembly for seating and unseating each of the filters against its seal. The clamping assembly comprises a pair of filter clamping mechanisms extending transversely across the interior of the housing and along the top and bottom side walls, respectively. Also, a handle is pivotally mounted between the two clamping mechanisms adjacent the opening, and the handle is connected to each clamping mechanism such that rotation of the handle serves to actuate the mechanisms. In one embodiment, the handle is releasably connected to the two mechanisms, and the mechanisms are releasably mounted to the top and bottom side walls, whereby the entire assembly may be disassembled and removed from the housing through the side access opening to permit the repair or replacement of a defective component. In another embodiment, the entire clamping assembly comprises an interconnected unit, which is releasably mounted in the housing. The invention finds particular utility in the case of housings used for the cleaning of exhaust airstreams containing potentially dangerous substances, and wherein the components of the clamping assembly may be removed and replaced through the side access opening in the housing by the bag-in, bag-out procedure.

US Patent:

45358117, Aug 20, 1985

Filed:

Jan 20, 1984

Appl. No.:

6/572696

Inventors:

Joseph A. Wood - Greenville NC
William C. Peebles - Washington NC

Assignee:

Flanders Filters, Inc. - Washington NC

International Classification:

F16K 120
F24F 1310

US Classification:

137601

Abstract:

An air flow control apparatus is disclosed which is characterized by essentially zero leakage in its closed position, and by minimal air resistance in its open position. The apparatus includes a housing having an interior framework which defines a plurality of troughs of V-shaped cross section, and with each side of each trough including an opening. A closure is associated with each trough, which includes a pair of pivotally mounted plates which are movable between a spread apart position covering and closing the openings in the trough, and a collapsed position wherein the plates are substantially aligned with each other and spaced from the associated openings to permit free air flow therethrough. A continuous upstanding peripheral flange surrounds each opening, and a resilient pad is mounted on each plate of each closure so that the resilient pad mates with the outer edge of the flange when the closure is moved to the spread apart position, and so that the outer edge presses into the resilient pad to effect an air tight seal. The axis of the pivotal plates is adjustable to permit the pressure between the plates and outer edge of the flanges to be uniform about the periphery of each opening.