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| Number | Title | Issue Date |
| 7419526 | Conformal filter cartridges and methods Conformal filter cartridges, filtering apparatus using the conformal filter cartridges, and methods of manufacturing the conformal filter cartridges are disclosed. The conformal filter cartridges may include a bed of filter material between a pair of support plates,... | 09/02/2008 |
| 7393386 | Exhaust aftertreatment filter with residual stress control An exhaust aftertreatment filter has a pre-stressed layer bonded to the filter body at the outer periphery and compressively axially pre-stressed in an opposite axial direction to separational axial tensile stress to counteract the latter during regenerative heating... | 07/01/2008 |
| 7361214 | Disposable cartridge for air/gas dryer A disposable dryer cartridge for an air/gas dryer apparatus for installation in an air/gas line delivering compressed air or gas to an air/gas-driven tool. The cartridge includes a flexible elongated casing having a drying composition therein. The casing has an air/... | 04/22/2008 |
| 7332013 | Compressed air/gas-driven tool with integrated dryness indicator An air/gas-driven tool with an integrated air/gas dryness indicator. The tool includes a housing that defines a cavity. An air/gas dryness detector is disposed in the cavity. An air/gas flow passage is situated to provide a stream of compressed air/gas to the drynes... | 02/19/2008 |
| 7326266 | Coalescing type filter apparatus and method A coalescing type gas filter includes a filtering element enclosed in an inner chamber which is housed in an outer chamber and a drain device to simultaneously drain accumulated liquid in both the inner chamber and the outer chamber. The drain device contains a pres... | 02/05/2008 |
| 7320725 | Disposable cartridge air/gas dryer A disposable cartridge air/gas dryer apparatus for installation in an air/gas line delivering compressed air or gas to an air/gas-driven tool. The dryer includes a pressure vessel having first and second ends, an inlet port, and an outlet port. A disposable dryer ca... | 01/22/2008 |
| 6797028 | “Push-on” self attach adaptive filter There is provided in a standard ceiling system, having suspension rails or elements a movable air delivery diffuser resting on the suspension elements and a filter panel inserted into and retained between the suspension elements and the air delivery diffuser. The fi... | 09/28/2004 |
| 6783566 | Combination filter/cartridge assembly A filter cartridge assembly including a replendam that combines a particulate filter with an irregular shaped gas sorbent bed. Best operational practice requires that the air passing through the filter be distributed uniformly over the sorbent bed. The repledam dire... | 08/31/2004 |
| 6663685 | Filter assembly A filter assembly for collecting material that is entrained in a gas stream includes a housing for a filter element. The housing has first and second ends with an inlet and an outlet at the first end for the gas that is to be filtered, and a support surfa... | 12/16/2003 |
| 6605135 | Granular bed restraint system System for restraining the upward motion of granular material in a vessel containing a bed of the granular material through which a fluid flows in an upward direction. The system comprises flexible porous basket within the vessel in contact with the top o... | 08/12/2003 |
| 6416563 | Filter assembly A filter assembly for collecting material that is entrained in a gas stream includes a housing for a tubular filter element. The housing has first and second ends with an inlet and an outlet at the first end for the gas that is to be filtered, and a suppo... | 07/09/2002 |
| 6409786 | Filter assembly A filter assembly for collecting material that is entrained in a gas stream includes a housing having inlet and outlet ports for the gas that is to be filtered. The housing includes an end cap in which at least one of the ports is provided, and a body sec... | 06/25/2002 |
| 6309450 | Flow-through adsorbent unit assembly for receiver dryer An adsorbent unit assembly including a holder, an elongated member on the holder, an enlarged portion at the end of the elongated member, a cylindrical adsorbent unit having an opening therein for receiving the elongated member, and a grid mounted on the ... | 10/30/2001 |
| 6228152 | Filtering device for equipping a ventilation and/or heating and/or air conditioning unit, more particularly for a motor vehicle A filter device has a frame, a grid, a filter medium and, if desired, a gas adsorption medium. The frame is flexible so as to be temporarily deformable and is made of polypropylene, as is the grid. The filter medium is a mat of non-woven material and the ... | 05/08/2001 |
| 6113674 | Adsorption apparatus and methods An adsorption bed arrangement includes a plurality of adsorption elements, a housing, and a gasket member. Each of the adsorption elements has adsorption media contained within a respective element. Each of the adsorption elements are selectively openable... | 09/05/2000 |
| 6039780 | Filter arrangement A filter arrangement with a cellular structure in which a plurality of filter chambers extend in the direction of the medium to be filtered. There is a filter cloth or fabric attached to each of the two sides of a cell frame which closes the filter chambe... | 03/21/2000 |
| 5674303 | Filter assembly A filter assembly is provided which includes a casing having an inner surface defining a fluid passage, a fluid inlet and a fluid outlet; a filter pack disposed in the fluid passage for filtering a fluid passed therethrough; and a flexible seal positioned... | 10/07/1997 |
| 5340546 | Gas filter A gas filter comprising a tube open at one end for insertion of the element and a threadedly connectectable end cap for closing the housing are disclosed. Attached to the end cap and also to the opposite end of the housing are receptacles for receiving th... | 08/23/1994 |
| 5183488 | Multi-stage filter frame assembly A multi-stage filter assembly having a number of filter media layers, at least one of which is removably mounted to a filter frame, utilizes a retaining clip to hold the filter media in place. The retaining clip is in the form of an elongated strip that e... | 02/02/1993 |
| 5151253 | Catalytic converter having a monolith mounting of which is comprised of partially dehydrated vermiculite flakes A monolith can be mounted in a catalytic converter by a material containing intumescent vermiculite flakes that have a uniform content of chemically bound water from about 1.0 to 3.2% by weight and a uniform bulk density from about 0.2 to 0.9 g/cm3. | 09/29/1992 |
| 5148613 | Closet drier A closet drier including a container having an upper portion and a lower portion divided by a normally stretched elastic diaphragm having perforations therein and retaining deliquescent material in the upper portion of the container, a membrane at the top... | 09/22/1992 |
| 4999038 | Filter unit The present invention relates to a filter unit having a sheet of filtering material mounted on a first frame and a second frame received within and below the first frame. The second frame is configured such that the filtering material is tightly held betw... | 03/12/1991 |
| 4997465 | Anti-fluidization system for molecular sieve beds A valve assembly (B) cycles compressed gas from a compressor (A) to a pair of molecular sieve beds (C) to perform a pressure swing adsorption gas separation cycle. Each bed includes a peripheral outer wall (20) and has a tubular member (30) extending down... | 03/05/1991 |
| 4925468 | Filter device provided in an air conditioning device A filter device having a plurality of filter elements and at least one flexible joint connecting the filter elements to each other. The filter elements are made of a substantially inflexible material and have connecting surfaces in parallel with a directi... | 05/15/1990 |
| 4874405 | Coupling fluid separation membrane elements An improved method is disclosed for coupling membrane elements of a fluid separation module in series. The improvement comprises providing flexible coupling members having two open ends and a passage between said ends; and securing the first end of a coup... | 10/17/1989 |
| 4867770 | Filter cartridge A filter cartridge incorporates a layer of granular material (4d) for adsorbing gases and/or vapors retained in position by porous retaining elements (4e, 4f, 4g). The cartridge includes a housing (2) and a closure element (3) for closing the housing. The... | 09/19/1989 |
| 4818497 | Device for purification of exhaust gases An exhaust gas purifier of the type wherein a catalytic body is elastically supported within a metal casing. This is achieved by at least partly filling a space between the catalytic body and the metal casing with a dampening member comprising one or more... | 04/04/1989 |
| 4749392 | Dehumidifying material A moisture absorbent is sealed between an elastic material and a moisture-permeable film to thereby provide a dehumidifying material having an elastic layer or bed therein. The dehumidifying material may be used in the fields of packing articles such as p... | 06/07/1988 |
| 4740221 | Air filter apparatus with modularized self-cleaning filter system Disclosed is an air filter apparatus having a separator chamber formed by a housing in which a barrier type filter element is mounted to an annular backflushing air reservoir or manifold having a bore therethrough on a unitary support member which may be ... | 04/26/1988 |
| 4416674 | Filter for treating a particle-carrying gaseous stream Filter for treating a gas such as the exhaust gas stream from a diesel engine, which exhaust gas often conveys carbon particles into the atmosphere. The treating filter comprises a casing holding a plurality of serially arranged filter beds. The latter ar... | 11/22/1983 |
| 4367148 | Method of and apparatus for separating liquid from solids entrained therein The invention relates to a method of and apparatus for separating liquid from solids entrained therein, which solids, preferably paint particles emanating from a paint spray booth are capable of floating on the liquid. The liquid and solids are entrained ... | 01/04/1983 |
| 4311492 | Vacuum tube filter cover A soft, flexible cover which is adapted to be attached over the open top of a container has a transparent section for viewing the contents of a container with which the cover is used, a filter section for removing entrained matter from air entering the co... | 01/19/1982 |
| 4290785 | Dust collector and method of operation An upwash, upflow or downflow, graded sand bed dust collector has a reusable imperforate or slightly porous diaphragm on the top of the graded filter media and an inlet for pressurized gas above the diaphragm for inflating the diaphragm against the media ... | 09/22/1981 |
| 4197098 | Filter bypass measurement section A damping tube-shaped bypass measurement section with protective maintenance features and continuous flow velocity scanning on absorptive filtration units in the nuclear engineering field is disclosed. The bypass measurement section comprises a tube-shape... | 04/08/1980 |
| 3996317 | Gas-liquid scrubber with resilient flexible grids An improved gas-liquid scrubber utilizing resilient and flexible perforated transverse grid members has the ability to flex and fracture off any excessive solids buildup that may occur in certain scrubbing operations. For example, high tensile strength, t... | 12/07/1976 |
| 3942964 | Clean room perforated floor panel A perforated floor panel for use in the construction of a floor for a "clean room" having a return air system, and the like, which provides a controlled constant balanced pressure drop across the floor and a roughing filtration of air passing through it, ... | 03/09/1976 |
