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Class Information
Number: 29/896.62
Name: Metal working > Method of mechanical manufacture > Multiperforated metal article making > Filter
Description: Process of making a perforated article which will be used to separate particles from material flowing through the article.










Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8672350 Cylindrical filter for gas generator Mar. 18, 2014
8627568 Manufacture of a filter screen Jan. 14, 2014
8590158 Methods of making filter apparatus and fabricating a porous ceramic article Nov. 26, 2013
8585792 Filter for use in a gas generator Nov. 19, 2013
8578608 Manufacturing of sand screens Nov. 12, 2013
8387256 Method for improved scaling of filters Mar. 5, 2013
8302310 Method of making a sand screen on a base pipe Nov. 6, 2012
8261449 Manufacturing method of plugged honeycomb structure Sep. 11, 2012
8226827 Filtration assemblies and methods of installing filtration units in filtration assemblies Jul. 24, 2012
8176634 Method of manufacturing a well screen May. 15, 2012
8146218 Method for making solid edge gutter screen Apr. 3, 2012
8127447 Method for downhole screen manufacturing Mar. 6, 2012
8127448 Method for making drainage element Mar. 6, 2012
8091231 Spinning method of a work piece in a non-circular cylindrical shape and apparatus for the same Jan. 10, 2012
8061020 Apparatus for making drainage element with a periphery of different materials Nov. 22, 2011
8051568 Grate cover apparatus and method Nov. 8, 2011
8051990 Oil canning of mesh screen for filter Nov. 8, 2011
7996993 Temporary vascular filter guide wire Aug. 16, 2011
7976705 Filtration assemblies and methods of installing filtration units in filtration assemblies Jul. 12, 2011
7926414 Material for a manual drip coffee cone Apr. 19, 2011
7913377 Method for producing a ceramic filter element Mar. 29, 2011
7856718 Method of manufacturing a screen cylinder and a screen cylinder Dec. 28, 2010
7806178 Wire wrap screen manufacturing method Oct. 5, 2010
7765698 Method of making electret articles based on zeta potential Aug. 3, 2010
7757401 Method for manufacturing a screen for downhole use Jul. 20, 2010
7716834 Screen manufacturing method and welding apparatus thereof May. 18, 2010
7645313 Wound filter element Jan. 12, 2010
7640663 Filter member producing method Jan. 5, 2010
7559146 Wire mesh filter with improved hoop strength Jul. 14, 2009
7475477 Method for making drainage elements Jan. 13, 2009
7449248 Screen material manufacturing method and applications thereof Nov. 11, 2008
7325308 Processing method utilizing display information for carrying a cell structure with a catalytic component Feb. 5, 2008
RE39940 Screen plates and methods of manufacture Dec. 18, 2007
7287684 Filter cartridge assembly and method of manufacture Oct. 30, 2007
7174634 Method for producing a fluid treatment device having a honeycomb member Feb. 13, 2007
7174636 Method of making an embolic filter Feb. 13, 2007
7143899 Filter element and method for manufacturing the plates thereof Dec. 5, 2006
7069657 Method to reduce the width of a slot in a pipe or tube Jul. 4, 2006
6978900 Braided strainer for a draw line Dec. 27, 2005
6941652 Methods of fabricating a thin-wall expandable well screen assembly Sep. 13, 2005
6922894 Spin-on filter including improved seal arrangement and methods Aug. 2, 2005
6921423 Separator tank assembly and method of manufacture Jul. 26, 2005
6905032 Screens for fibrous paper suspensions and process for making same Jun. 14, 2005
6863706 Module for use as a filter, catalytic converter, or heater, and method for the manufacture thereof Mar. 8, 2005
6857188 Process for producing a particle filter Feb. 22, 2005
6840975 Grease filter Jan. 11, 2005
6840977 Coolant for air-bag gas generator and production method therefor Jan. 11, 2005
6836963 Process for production of conical filter elements Jan. 4, 2005
6789681 Screen for fiber suspensions and method for the manufacture thereof Sep. 14, 2004
6785964 Method for making a mechanical screen cylinder Sep. 7, 2004

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