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Class 95/284 - And reduction of pressure


Subclass of Class 95 - Gas separation: processes
Definition: Process in which the pressure acting in the process is decreased.
No. of patents: 40
Last issue date: 11/22/2011


NumberTitleIssue Date
8062409Cleaning device and method for cleaning a workpiece
In order to produce a cleaning device for cleaning a workpiece including a suction apparatus for sucking out impurities from an interior of the work piece wherein the suction apparatus has a particularly large suction effect, it is proposed that the suction apparatu...
11/22/2011
7329306Process for safe membrane operation
A process is disclosed for shut-down of a membrane separation zone comprising a non-permeate side and a permeate side and processing a feed stream comprising a non-permeable component, a less-readily permeable, condensable component, and a readily permeable componen...
02/12/2008
7291196Filamentary pad for improved mist elimination and mass transfer
An apparatus and method of making a filamentary pad for improved mist elimination and mass transfer comprising a plurality of layers of mesh, each layer of mesh having a plurality of mesh openings defined therein. A plurality of preferential gas flow openings, each ...
11/06/2007
7111494Methods and systems for characterizing a sorbent tube
Disclosed are systems and methods that include providing a vessel having an adsorbent disposed therein, the vessel having an inlet and an outlet for communicating a carrier gas through the vessel; determining a differential pressure between the inlet and the outlet ...
09/26/2006
7073442Apparatus, systems and methods for use in three-dimensional printing
Apparatus, systems and methods for use in three-dimensional printing are shown and described. Various embodiments of the invention allow for more precise and controlled delivery of heat to achieve interlayer drying; isolation of the working region from the outside f...
07/11/2006
6997974High strength and ultra-efficient oil coalescer
A coalescing assembly for coalescing entrained oil from a high temperature, high velocity gas stream comprises a coalescing element of compacted high temperature polyamide fibers, such as those available under the trademark Nomex®, rigidly held by concentric cylind...
02/14/2006
6960054Car dumper dust collection method and apparatus
A method and apparatus for controlling dust generated by the rotary dumping or rail cars may include one or more flexible baffles are provided to the back-side of a rotary dump frame to seal a portion of the material receiving pit during a portion of the rotary moti...
11/01/2005
6936108Heat treatment device
A film-forming unit of the invention includes: a processing furnace, gas-supplying means that supplies a process gas into the processing furnace, heating means that heats an inside of the processing furnace to a predetermined process-temperature, and a normal-pressu...
08/30/2005
6913637Air purifier
An air purifier includes a main body defining an air passage therein to allow sucked air to pass therethrough prior to being discharged, and a first filter installed in the main body to be switched between a closed state and an open state. The first filter removes c...
07/05/2005
6592543Fluid flow regulator for a smoke evacuation system and method of using same
A fluid flow regulator of a smoke evacuation system for use with laparoscopic and endoscopic surgery is disclosed. The fluid flow regulator is comprised of a flow regulating means and a conduit connecting means. The flow regulating means in one embodiment...
07/15/2003
6387158Method of removing moisture in gas supply system
A method of removing moisture efficiently in the gas supply system by evacuation at normal temperature without using the baking method. The method involves flowing a gas to remove moisture in the gas supply system with the flow pressure of the gas to remo...
05/14/2002
6251169Method for vacuum/reduced-pressure refining and facility for vacuum/reduced-pressure refining
A vacuum/reduced pressure refining vessel (1) is connected, by an upstream duct (5) to a dry dust collector (3) that uses a filter (2). The dry dust collector (3) is connected to a reduced pressure evacuating apparatus (4) by a downstream duct (6), and a ...
06/26/2001
6217637Multiple stage high efficiency rotary filter system
An apparatus and method for filtration of particulate matter in fluid streams. A unique high efficiency, two element filter embodying an enclosure containing a tandem rotary disk and drum filter mounted on a common shaft is described. A method of operatio...
04/17/2001
5681372Oil reservoir vent system with oil separator and method thereof
A device and method for separating oil from the vent of an oil reservoir, such as a sump of an oil-free compressor, includes a suction pump for drawing in air from the oil reservoir through a first venting line and delivering the air through a second vent...
10/28/1997
5649997Air vacuum apparatus
Apparatus for use with a gaming table or other surfaces for removing and filtering indoor airborne fumes and particles at their point of origin. A laminar exhaust air flow is created across the table surface. The laminar exhaust is drawn by vacuum through...
07/22/1997
5647893Method for filtering lubricant from a lubricant/compressed gas mixture flowed through a pressure relief valve in a compressor
A pressure relief valve for both reducing pressure in a vessel when the pressure of a mixed media combination made up of a mixture of gaseous and nongaseous components and contained in the vessel is at a relief valve actuating pressure, and for filtering ...
07/15/1997
5647880Pressure relief valve with filter
A pressure relief valve for both reducing pressure in a vessel when the pressure of a mixed media combination made up of a mixture of gaseous and nongaseous components and contained in the vessel is at a relief valve actuating pressure, and for filtering ...
07/15/1997
5536286Vacuum valve filtering system
A vacuum valve filter system has a plurality of diverting elements sandwiching a plurality of filter elements for filtering fluid passing from a cavity of a vacuum die. The diverter elements establish a serpentine fluid flow through the filter systems. Al...
07/16/1996
5334239Passive gas separator and accumulator device
A separation device employing a gas separation filter and swirler vanes for separating gas from a gasliquid mixture is provided. The cylindrical filter utilizes the principle that surface tension in the pores of the filter prevents gas bubbles from passin...
08/02/1994
5279629Air handling apparatus and method for textile machines
An air handling and filtering system is provided for with conventional textile machines. The apparatus includes a common vacuum system for drawing first and second independent airstreams through the textile machines. A filtering system operates with the v...
01/18/1994
5129922Method and apparatus for removing contaminated air from an enclosed dirty air space
Contaminated air is drawn from a relatively enclosed dirty air space and filtered to remove both contaminants and other particulate materials. A main mechanical filter is positioned between the dirty air space and a surrounding environment which is to be ...
07/14/1992
5080697Draw-down cyclonic vacuum cleaner
A vacuum cleaning apparatus is provided having a canister, a motor mounted to the exterior of the canister, a cyclonic cone centrally disposed within said canister, an inlet port in the canister wall opposing the cyclonic cone, an outlet port above the cy...
01/14/1992
5080701Portable decontamination unit for spot abatement of asbestos or similar contaminants
A self-contained, portable spot abatement unit (10) facilitates the spot removal or abatement of asbestos material, or other material containing particulate contaminants. The unit includes a portable work chamber (12) having vacuum (VP1, VP2) and filtrati...
01/14/1992
5039316Glove bag adaptor control
An adaptor for controlling, in a fail safe manner, creation of a negative pressure in glove bags and similar types of collapsible protective environmental enclosures, has a make up air chamber having a flow control valve on the input side and a vacuum sou...
08/13/1991
5034031Method for vacuum cleaner with uninterrupted and undiminished performance
A vacuum cleaner assembly including a multiplicity of vacuum cleaner canister units each of which has a filter for receiving dirty fluid sucked into the canister unit and is configured such that two suction forces operate on each canister unit, with one s...
07/23/1991
5027642Method of detecting and or removing trace amounts of condensible vapors from compressed gas
A method to detect, measure or remove trace amounts of condensible vapors in compressed gases. The concentration of droplets detected, measured or removed may be as low as part per trillion. The compressed gas comprising a carrier gas and condensible vapo...
07/02/1991
5015274High efficiency industrial vacuum cleaner and filter element
A vacuum cleaner uses a special self-cleaning filter arrangement including an initial fabric filter having a relatively large mesh size with a broad open mesh ratio of 5 to 11 flat filter threads 0.025 to 0.045 inches in width defining oblong filter openi...
05/14/1991
4988372Method and device for filtering contaminated gases laden with liquid vesicles
In the method disclosed for filtering a contaminated gas laden with liquid vesicles (or aerosols) through a filter medium arranged around a center hollow through which the aerosol enters, the filter medium is heated to a temperature above the aerosol's de...
01/29/1991
4946478Particulate collection and dewatering means for airborne particulate matter
An apparatus and process for the collection of airborne particulate matter in combination with a fluid, the airborne particulate matter and fluid being collected in a collection chamber under negative pressure, the collection chamber having a disposal bag...
08/07/1990
4765352Portable isolation enclosure for use in cleaning contaminated environments
A sealed portable isolation enclosure for use in removing asbestos material from ceiling or other elevated asbestos-containing structures including a booth and an adjustable ceiling-contacting plenum for accommodating ceiling of various heights. Disposed ...
08/23/1988
4734110Method and apparatus for removing solids from pressurized process system
A method and apparatus for removing solid material from a process system pressurized by a process gas, especially process gases having a high content of solid material. The method operates cyclically. In a first cycle, the solid material is separated, via...
03/29/1988
4723969Vacuum loader and process for removing asbestos and other hazardous material
A specially arranged, five stage, four compartment, vacuum loader is provided to collect, remove, and dispose asbestos and other hazardous material in an efficient, effective, and safe manner without exposing surrounding personnel to the collected asbesto...
02/09/1988
4647295Worktop air cleaner
Apparatus and method for removing obnoxious fumes and particulate laden air from a work area above a table or desk for the treatment of human nails. The removed air is filtered in a unit removed from the table or desk to remove particulate 3 microns and l...
03/03/1987
4604111Particulate contamination control method and filtration device
A negative pressure method and apparatus for protection from airborne asbestos and other particulate contamination is disclosed, including an enclosure with doorways and decontamination chambers with an air intake through the decontamination chambers with...
08/05/1986
4541846Method of recovering environment-detrimental material
In a method of in situ recovering and rendering harmless material detrimental to environment, for example asbestos and the like, the material is transported together with ambient air by means of vacuum from the place in situ to a space, in which the mater...
09/17/1985
4521226Method of automatically controlling a dust-collecting plant
For a dust-collecting plant, in which a plurality of gas streams are sucked from spaced apart dust sources and are delivered in a manifold to a dust-collecting unit and the gas is delivered by a controllable exhaust fan to an exhaust gas chimney, a method...
06/04/1985
4435194Circuit for ventilating and filtering the medium contained in a confinement enclosure
The invention relates to a circuit for ventilating and filtering the medium contained in a confinement enclosure (10) and also a method for sterilizing such an enclosure and its supply and discharge filters. An emergency or standby circuit is associated with t...
03/06/1984
4326852Method for increasing the bulk weight of silicon dioxide
A method for increasing the bulk weight of silicon dioxide with a surface of at least 50m2 /g by means of sub-atmospheric pressure applied at a filter face, wherein the silicon dioxide is moved by means of a conveyor screw, whose longitudinal a...
04/27/1982
4073631Stationary drum filtration device and method
A filtration device and method for removing particulate matter entrained in a gas stream including a filter media with a first prescribed surface area on one side thereof; a perforated support for positioning the filter media so that one side thereof is i...
02/14/1978
3997303Liquid-gas phase separator having a perforated plate and mist eliminator pad
This invention relates to a tubular phase separator for removing entrained liquid from a gas stream having a feed inlet, a gas outlet spaced apart from the feed inlet, a liquid outlet spaced apart and below the feed inlet and gas outlet, and a mist elimin...
12/14/1976
 
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