| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 210486000 | Spaced wall type, e.g., hollow leaf | 19 |
| 20090084726 | MULTI-FUNCTIONAL DUAL FILTERING KETTLE - A multi-functional dual filtering kettle comprises a kettle body; a filter received in the kettle body; a cover covering upon an upper opening of the kettle body; an inner side of the filter having a ceramic filter unit and a compound filter unit being installed below the filter. The ceramic filter unit has the function of emitting far field infrared rays; and the compound filter unit filter has the function of removing the impurities, microorganisms, odor, and organic compounds in water. The ceramic filter unit has a plurality of biochemical ceramic balls which has the function of emitting far field infrared rays. A hollow space of the compound filter unit is filled with a filter layer, an active carbon layer, and a ceramic layer. | 04-02-2009 |
| 20100193427 | FILTRATION ELEMENT HAVING A VARIABLE DENSITY SIDEWALL - A filter made of specifically arranged filaments. The filter has an upstream side where fluid enters and a downstream side where fluid exits. The filaments are greatest in diameter near the upstream side wherein the filaments continuously and gradually decrease in thickness toward the downstream side. The pores or spaces between the filaments are largest near the upstream side and decrease gradually toward the downstream side. This allows various size particles to become entrained in the filter in an evenly distributed manner. | 08-05-2010 |
| 20100243555 | MEMBRANE ELEMENT IN IMMERSION TYPE MEMBRANE SEPARATION APPARATUS - [Problem] To present a membrane element in an immersion type membrane separation apparatus capable of filtering efficiently by holding a uniform filtering capacity on the whole of the membrane surface if clogging occurs in a part of the membrane surface. | 09-30-2010 |
| 20130126417 | Filter Element with Percussion Band - A filter element has a reinforcement band or ring along at least a portion of the perimeter thereof and performing a support function thereat preventing or minimizing damage upon attempted percussive cleaning of the filter element by service personnel striking the perimeter against an impact surface. Alternatively, a failure band or ring is provided along at least a portion of the perimeter and performs a designated failure function to a failure condition thereat upon attempted percussive cleaning, with the failure condition providing at least one of: a) an indication to service personnel that the filter element has been damaged and should not be re-installed; and b) a deformed condition preventing re-installation. | 05-23-2013 |
| 20130193063 | NONWOVEN FABRIC, METHOD FOR PRODUCING THE SAME, AND FILTER FORMED WITH THE SAME - The present invention provides a novel nonwoven felt fabric, which is made of at least one low-melting-point short fiber and at least one high-melting-point short fiber of same type or different types, wherein the fabric is stiff enough to be self-sustaining and have the ability of shape maintenance. The felt fabric exhibits excellent pleatability, moldability and compressive strength. The invention also provides a method for producing the felt fabric, and a filter comprising the felt fabric used as the material of a filter medium of the filter, wherein the filter medium requires no support structure to stand alone and persistently retains its shape. | 08-01-2013 |
| 20140042079 | FUEL FILTRATION DEVICES - A fuel filtration device may include a filter element and a space-keeping member. The filter element may have a plurality of fusion-bonded portions and have a space defined therein. The space-keeping member may have crosspieces defining openings therebetween and may face a surface of the filter element in a facing direction. The fusion-bonded portions may include those that do not overlap with the crosspieces of the space-keeping member in the facing direction. | 02-13-2014 |
| 20160009008 | Systems for and Methods of Manufacturing Micro-Structures | 01-14-2016 |
| 210487000 | Concentric, convolute or pleated | 12 |
| 20080245726 | Closed-Loop-Bonded Filter Media and Liner Pleat Block and Method - A filter media and liner pleat block and method involves melting the filter media at mating pleats to form a closed-loop-bonded filter media and liner pleat block. | 10-09-2008 |
| 20080251444 | SEPARATION DEVICES AND PROCESSES - A separation device comprises a cylindrical separation pack including a spirally wound porous medium, a feed channel including a shear region, a plurality of permeate passages extending along the permeate side of the porous medium opposite the shear region and perpendicular to the feed channel, a feed inlet, a retentate outlet, and a plurality of permeate outlets. | 10-16-2008 |
| 20100000936 | HOLLOW-FIBER MEMBRANE AND HOLLOW-FIBER MEMBRANE MODULE HAVING THE SAME INCLUDED THEREIN - The present invention provides hollow fiber membranes and a hollow fiber membrane module having the same included therein, which even when highly filled, can reduce the size of the module and simultaneously maintain a crimped state enabling a good flow of a dialysate or buffer in the module by an easy process, characterized in that the hollow fiber membrane is provided with a crimp having a wavelength of 15 to 25 mm and a crimp angle determined by the wavelength and an amplitude of 0.09 to 0.32. | 01-07-2010 |
| 20100108598 | Filter with Variable Pleat Depth - A filter is provided by pleated filter media having a plurality of pleats defined by wall segments extending axially along an axial direction along an axis and extending transversely along a transverse direction between first and second sets of pleat tips at first and second sets of axially extending bend lines. The pleated filter media spans laterally along a lateral span along a lateral direction, with the wall segments being spaced from each other by lateral gaps. The pleats have a pleat depth along the transverse direction along the wall segments between the first and second sets of pleat tips. The pleat depth varies as the pleated filter media spans laterally along the lateral direction. | 05-06-2010 |
| 20100140161 | MEMBRANE LEAF PACKET WITH REINFORCED FOLD - The present invention is directed toward membrane leaf packets, spiral wound modules and methods for making and using the same. The subject leaf packet comprises a membrane sheet folded upon itself and reinforced with sealant and tape along at least a portion of the fold on the back side of the membrane sheet. | 06-10-2010 |
| 20100294712 | MULTI-STAGE FILTER CARTRIDGE WITH POLYURETHANE ENDCAPS - A filter cartridge is described that is designed to accommodate for example dual stage filtration. The filter cartridge has an endplate structure formed of a heat cured material, such as polyurethane, where at least one of the top end and the bottom end of the outer filter and the inner filter are embedded within the heat cured material. The heat cured material can provide an endplate structure that is convenient for manufacture and that has one or more sealing surfaces to seal with a housing that the filter cartridge is assembled with. For example, the heat cured material of the endplate can seal non-filtered fluid from filtered fluid that has passed through each of the filtration stages available in the cartridge. | 11-25-2010 |
| 20110089104 | REPLACEABLE FUEL FILTER ELEMENT AND FUEL FILTER ASSEMBLY - One embodiment is a unique replaceable filter element. Further embodiments, forms, objects, features, advantages, aspects, and benefits shall become apparent from the following description and drawings. | 04-21-2011 |
| 20110168621 | TWO STAGE FUEL WATER SEPARATOR AND PARTICULATE FILTER - A water separator and particulate filter with a first or outer stage configured to coalesce water from fluid such as fuel, and a second or inner stage configured to separate coalesced water from the fluid and also remove fine solid contaminants from the fluid. The coalescing stage includes a pleated cylinder of polymeric media. The pleated cylinder has pleat valleys and downstream pleat tips, and release sites defined at the downstream pleat tips. The separator stage includes a non-pleated cylinder of polymeric media surrounding and in contact with outer pleat tips of a multi-layer pleated cylinder. | 07-14-2011 |
| 20110233133 | Direct Flow Filter Including an Integrated Flexible Seal - A direct flow filter has a first portion and second portion that are flexibly coupled along a joint that comprises a flexible sealing strip. | 09-29-2011 |
| 20130220917 | CERAMIC MADE OF PRECERAMIC PAPER AND/OR CARDBOARD STRUCTURES - A ceramic which can be obtained from a composite of at least two outer pre-ceramic paper and/or cardboard structures ( | 08-29-2013 |
| 20150090657 | DEVICE SUITABLE FOR TREATMENT OF A FLUID AS WELL AS A METHOD AND MACHINE SUITABLE FOR THE MANUFACTURE OF SUCH A DEVICE - A device, which is suitable for the processing of at least one fluid, is provided with at least one elongated foil, which is formed in a number of reciprocating foil layers. Between two opposite layers of foil, a spacer is situated that is permeable at least parallel to the foil layers. The foil layers and interposed spacers extend spirally around a central axis, wherein folding lines between two foil layers extend substantially parallel to the central axis. Each spacer is coupled to at least an end near the central axis with a support extending parallel to the central axis where, of the supports near the central axis, first supports are situated between two foil layers, which foil layers are connected to one another near the central axis, whereas second supports are situated between two successive first supports. | 04-02-2015 |
| 20160199758 | MESH FILTER | 07-14-2016 |
