Charles David Satarino, James T Dumas, Johanne Wilson, Michael Cermak, Roger Khami, Neville Jimmy Bugli: Air filter assembly for automotive fuel vapor recovery system. Ford Motor Company, Jerome R Drouillard, June 15, 1999: US05912368 (49 worldwide citation)

In a vehicle with an internal combustion engine and a fuel vapor recovery system including a carbon canister connected to the fuel tank for collecting fuel vapors from the fuel tank as the tank is being refilled, an air filtering apparatus is provided to supply a flow of clean and dry purge air to t ...

Domnick Keith Raphael: Fluid filter with color indicator. Domnick Hunter, Steinberg & Blake, October 15, 1974: US3841484 (42 worldwide citation)

A fluid filter for indicating by color the presence of an excessive amount of a given substance. A housing is formed at opposed end regions with a fluid inlet and a fluid outlet, and this housing has in its interior a micro-fibre cylinder which is hollow and which is spaced from the side wall of the ...

Polak Zednek: Gas filtration system employing a filtration screen of particulate solids. Nicoll Jr Frank S, Polak Zednek, Sughrue Rothwell Mion Zinn & Macpeak, November 4, 1975: US3917458 (38 worldwide citation)

One or more fluidized filtration screens are created by sets of closely spaced, oppositely inclined louvers supporting particulate filter matter therebetween. Baffle members control the flow of gas across and through the fluidized filtration screen. The outlet louver angle is closely controlled to i ...

Charles Clifton Roberts: Colorimetric vinyl chloride indicator. Catalyst Research Corporation, Reed Smith Shaw & McClay, June 29, 1976: US03966440 (31 worldwide citation)

A colorimetric indicator for use in indicating the impending exhaustion of a vinyl organo filtering device. The colorimetric indicator material consists of activated alumina impregnated with between 0.5 to 5.0% by weight potassium permanganate and is positioned immediately behind a window in a canis ...

Neumann Gerhard Max: Plate-shaped disposable active charcoal filter. Delbag Luftfilter Gesellschaft mit beschrankter Haftung, December 28, 1971: US3630007 (31 worldwide citation)

A disposable active charcoal filter has a frame open at both sides and subdivided into a plurality of compartments by intersecting partitions. The two open sides are covered by gas-permeable sheets and the space between the sheets is filled with active carbon.

Mu Seon Woo, Byoung Phil Lee, Hyung Gon Kim: System and method for determining air purifier filter change time using measurement of motor speed. Woongjin Coway, McDermott Will & Emery, May 22, 2012: US08182579 (26 worldwide citation)

A system and a method are disclosed for changing a filter provided in an air purifier at an optimum time by measuring the rotational speed of a motor that operates the filter. The system for determining an air purifier filter change time includes: a motor speed measurement unit; a time counting unit ...

Barnebey Herbert L: Modular fluid filter construction. Barnebey Cheney Co, Venable Wm Henry, March 25, 1975: US3873287 (24 worldwide citation)

This disclosure pertains to the construction of assemblies of granular material filled adsorbers or filters for fluids using modular components readily standardized to facilitate assembly of a variety of filter unit sizes and in diverse patterns from stock manufactured parts. The adsorber or filter ...

Shigeru Kurahashi: Air filter apparatus. Stewart and Kolasch, July 13, 1976: US03969095 (23 worldwide citation)

An air filter apparatus comprising an inner sleeve having a number of small apertures, an externally tapered outer sleeve having a number of small apertures, said inner sleeve being inserted in said outer sleeve and fixed in position to form a double-wall cylinder, a funnel-shaped suction port dispo ...

YAGHI OMAR M: Carbon dioxide capture and storage using open frameworks. THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, Baker Joseph R Jr, December 23, 2010: WO/2010/148276 (22 worldwide citation)

Methods and compositions useful for gas storage and separation are provided. More particularly, compositions and methods for CO2 storage and separation are provided comprising an open metal organic framework.

Braun David L, Steffen James E: Corrugated non-woven webs of polymeric microfiber.. Minnesota Mining & Mfg, February 9, 1994: EP0582286-A1 (21 worldwide citation)

A composite structure contains a lofty corrugated nonwoven web of polymeric microfiber that is maintained in a corrugated condition by securing a fabric to the corrugated web at the valleys of the corrugations. The composite structure is made without substantially effecting web loft by (i) introduci ...