Filter cartridges and methods and components for making them

Details Filter cartridges and methods and components for making them Filter cartridges and methods and components for making them

B - Operations, Transporting

01

D

182/15

B01D 29/41 (2006.01) B01D 63/08 (2006.01) B01D 65/00 (2006.01)

Patent

CA 1148094

ABSTRACT OF THE DISCLOSURE Novel membrane filter units are disclosed which are adapted for stacking and bonding into integral, disposable cartridges, optionally including an integral disposable housing. The units comprise a thin plastic support having flat membranes permanently bonded to their upper and lower surfaces. The support has a central opening, a sealing rim, and on each surface, inner and outer circumferential lands and intervening ribs or similar projections, the membranes being bonded and sealed to the lands and ribs. Each support surface adjacent the central opening has circumferential coupling and spacing means for bonding stacked units together in spaced relation. A novel method for bonding a membrane to a support is also disclosed. -1-

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