Patent ID: 6033453
Filing Date: 2000-03-07
Classification: B01D,Y10S

Abstract:
A support rack for loading and unloading with replaceable, pleated-media filter cores that have fold lines extending in a transverse direction and which stretch-out/collapse in a longitudinal direction, the loaded support rack allowing installation in a filter station of air-handling equipment, the support rack comprising:a frame comprising spaced longitudinal members extending between spaced transverse members;ventilated support means carried by the frame for providing support, in instances when a pressure differential exists across the frame, to the filter core on a low pressure side;the transverse members including retaining means for releasably retaining the proximate transverse edges or edge-margins of the loaded filter core; and,at least one longitudinal member including a flap pivotally attached thereto by means of a piano hinge arrangement, the flap extending longitudinally substantially completely between the spaced transverse members and being pivotal between closed and open positions for allowing retention and unobstructed removal in the closed and open positions, respectively, of the proximate longitudinal margin of the loaded filter core, for protecting, when closed, the proximate longitudinal margins of the pleats of the pleated-media of the filter core from damage during sliding installation of the support rack in slideways for said support rack in the filter station of the air-handling equipment, and, when open, for allowing convenient unloading and replacement of the filter core;wherein said flap while closed further provides a bearing surface for sliding contact with the slideways of the filter station during sliding installation; and whereby said flap obviates the need for a lock for the closed position because while in the slideways, said slideways oppose the flap's movement out of the closed position.