FILTREX HOLDINGS PTE LTD.
|FILTREX HOLDINGS PTE LTD. Patent applications|
|Patent application number||Title||Published|
|20110089103||VENTED FILTER CARTRIDGE FOR WATER TREATMENT DEVICE - A filter cartridge has a shell defining an upper portion with an upper interior volume and a lower portion with a lower interior volume. The cartridge is for use in gravity-fed water treatment systems have an upper untreated supply and a lower filtered container. A hydrophilic porous particulate carbon powder block filter in a polymeric binder is disposed in the cartridge. The filter has a central opening and is open on both ends. The top end of the block is fitted with an air vent tube. The lower end of the block is fitted into a rubber gasket to direct water flow into the lower container. As water flow through the filter cartridge, air is vented through the block filter central opening and out through the vent tube.||04-21-2011|
|20090274893||METHOD FOR MANUFACTURING CARBON BLOCKS - A method for continuous extrusion of activated carbon tubular shapes used in a water filtration device and process for making same. A mixture of primarily activated carbon and polymeric binder is gravity fed into an extruder barrel through a slide to facilitate uniform feed. The binder is surface charged by a plasma process to attach to the carbon with a weak force. The barrel is heated by induction heating to provide high and constant heat source. A desired porosity in the carbon profile is achieved by varying the mesh size of the carbon and binder along with changing the pitch in the screw.||11-05-2009|
|20080302476||METHOD TO BOND PLASTIC END CAPS TO POROUS FILTRATION BODIES - A bonding method for a filtration unit for bonding a polymeric end cap to a porous filter element body includes providing a polymeric end cap of a filtration unit, providing a porous filter element body and positioning a hot melt adhesive element and a metal element between the porous filter element body and the end cap. A pressure is applied between the porous filter element body and the end cap and an electromagnetic field is induced at the metal element. The hot melt adhesive is melted and flows between the end cap and the porous filter element body and a bond is formed between the porous filter element body and the end cap.||12-11-2008|
Patent applications by FILTREX HOLDINGS PTE LTD.