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Class 202/267.1 - Materials of construction


Subclass of Class 202 - Distillation: apparatus
Definition: Subject matter claiming the materials of which the structures
No. of patents: 159
Last issue date: 11/15/2011


1        
NumberTitleIssue Date
8057642Method of corrosion prevention
This invention relates to a process for reducing the corrosion rate of iron-containing vessels within an ethylene glycol distillation system. The inventive process includes the addition of an additive component of sodium nitrite and sodium hypophosphite into such ir...
11/15/2011
7431805Method and apparatus for simultaneous heat and mass transfer utilizing a carrier-gas at various absolute pressures
A method, system, and apparatuses for simultaneous heat and mass transfer utilizing a carrier-gas at various absolute pressures are described. A method may include: thermally coupling at least two continuous contacting apparatuses together; varying the pressure betw...
10/07/2008
7416643Solar water desalination/purification device
A solar water desalination and purification device includes an outer liquid-tight containment and an inner liquid-tight containment disposed within the outer containment. The outer containment collects liquid that forms from condensing water vapor that evaporates wi...
08/26/2008
7264695Systems and methods for solar distillation
The present invention is directed to a solar powered distillation system and method. The solar powered still may have an impermeable nonporous membrane that may be extruded, molded, vacuum formed or sprayed-on. The membrane may be installed in a lightweight basin as...
09/04/2007
7258767Solar dew tube
The invention pertains to a device for the condensation of water from an aqueous liquid by using a temperature gradient, which device includes: (a) a vapor chamber that can be brought in contact with a condensation compartment wher...
08/21/2007
7241365Material for a facility for the production of anhydrous formic acid
The invention relates to an apparatus and a process for the preparation of anhydrous or substantially anhydrous formic acid. This apparatus is constructed partly or entirely of substantially zirconium-free materials. The extractant employed is a liquid of the genera...
07/10/2007
7153395Systems and methods for solar distillation
The present invention is directed to an improved solar powered distillation system and method. The solar powered still may have a membrane that is extruded, molded, or sprayed-on. The membrane may be installed in a lightweight basin as a liner resulting in improved ...
12/26/2006
7108769Solar distillation loop
A solar distillation loop apparatus includes a first pipe section disposed on a ground surface, the first pipe section including a substantially straight portion and elevated portions on each end of the substantially straight portion, an impure water inflow coupling...
09/19/2006
7081185Purification apparatus provided with low heat conductive member
The object of this invention to provide an improved arrangement that enables to prevent adhesion of polymer on or around the inner wall of a purification apparatus directly equipped on the outer wall thereof with an attachment such as a support by suppressing local ...
07/25/2006
6966973Apparatus and process for producing (meth)acrylic acid
The present invention provides an apparatus for producing (meth)acrylic acid and a process for producing (meth)acrylic acid with this apparatus wherein the apparatus enables the production of (meth)acrylic acid stably for a long period of time by effectively inhibit...
11/22/2005
6958111Dividing wall column
In a dividing wall column comprising as segments a) an upper column region (6), b) an inflow section (7), c) an offtake section (8) and d) a lower column regio...
10/25/2005
6916406Coke oven door
A coke oven door comprises a generally rectangular outer frame, a generally rectangular inner frame positioned within the outer frame and a seal operably mounted to the inner frame and adapted for effecting sealing against a jamb of a coke oven. The outer frame is a...
07/12/2005
6911119Simple portable mini distillation apparatus for the production of essential oils and hydrosols
This invention relates to a simple, convenient, portable mini-distillation apparatus for the production of essential oils and hydrosols, said apparatus is useful to distill essential oils and hydrosols such as rose water, ajowain water from fresh and dried plant mat...
06/28/2005
6887344Compact wastewater cleaning apparatus
A compact, self-contained apparatus for treating wastewater containing as impurities and pollutants various non-volatile (at water boiling points) fluids such as greases, oils and soaps, a vessel for collecting the wastewater, a heating chamber including electric he...
05/03/2005
6884324Column for concentrating phthalic anhydride
To improve the columns used so far for producing phthalic anhydride, and to make them less expensive and easier to install, it is proposed that in the column for concentrating phthalic anhydride two distillation stages are arranged, wherein the removal of the low-bo...
04/26/2005
6797122Coke oven and method of operating the same
A coke oven and a method of operating the same, capable not only of achieving a uniform combustion temperature heightwise within a combustion chamber when a rich gas or a lean gas is burnt, but also of reducing NOx content in the waste gas, while eliminat...
09/28/2004
6797124Solar distillation unit
A solar distilling apparatus employs anthracite coal as a heat-absorbing medium. Greenhouse roof elements rest over a gutter that is isolated from the water-holding container to prevent deposit formation and algae growth from reaching the gutter. Bacterial growth is...
09/28/2004
6797123Device at distillers adapted to distill solvents for recovery of pure solvent from impure solvent
The present invention relates to a device for a distiller adapted to distil solvents for recovery of pure solvent from impure solvent, the solvent (2) being used for washing away residues of paint from spray guns. The distiller (1) includes an outer co...
09/28/2004
6793770Evaporator
The invention concerns an evaporator, especially for the sugar industry, with at least two heat exchangers, into the top of which the medium to be concentrated is loaded and which are heated with steam with different compositions and/or different pressures in a cros...
09/21/2004
6767433System and method for solar distillation
The present invention is directed to an improved solar powered distillation system and method. The solar powered still may have a waterproof membrane that is extruded, molded, or sprayed-on. The membrane may be installed in a lightweight basin as a liner resulting i...
07/27/2004
6733635Method of repairing a coke oven buckstay and a moving device for use in such method
A coke oven buckstay moving device and method which can be used to quickly, reliably, and smoothly repair buckstays compared to conventional methods and devices. The coke oven buckstay moving means includes a main car, a subcar, a frame, and securing means. The main...
05/11/2004
6663751Device for evaporation and condensation in confined environment
The device for evaporation and condensation in a closed environment includes an evaporation receptacle, a heating unit for the evaporation receptacle and a condensation receptacle connected in a substantially sealed manner to the evaporation receptacle. T...
12/16/2003
6554967Method of refining dihydroxyaryl compound
A refined dihydroxyaryl compound, for example, catechol, having a high degree of purity and a very low metal content is produced by evaporating a starting dihydroxyaryl compound in a distillation column, condensing the vapor fraction in a condenser connec...
04/29/2003
6440275Solar stills for producing fresh water
A solar still for producing fresh water including a device, adapted to absorb solar radiation and to contain water to be distilled; a condensation surface on which vapor, produced by heating up of water of the device can condense; a fresh water collector ...
08/27/2002
6419796Solvent distillation apparatus
The object of the invention is to provide a solvent distillation apparatus capable of preparing a highly pure anoxic, dehydrated solvent. A distilling flask is connected to a vacuum double-barrel fractionating column by a glass flange. The upper end of th...
07/16/2002
6355144High output solar water distillation system
A high output solar fluid distillation system is described that is practical to manufacture and efficient to operate, and can distill a variety of fluids such as water or ethyl alcohol. The distillation system uses a fluid feed system that collects source...
03/12/2002
6342127Distillation device
A distillation device including an enclosed tube of elliptical or circular cross section and having a top of an inverted shape so that the inverted portion points downward. The upper section of the outer tube should be of a material that permits the heati...
01/29/2002
6235161Inhibition of 141b decomposition
Inhibition of the formation of unsaturated carbon compounds during the heating of 141b involving the addition of various inhibitors such as butylene oxide and/or the use of a vessel made of a nickel alloy....
05/22/2001
6150040Pure steam-related apparatus protected from fouling and method of manufacturing the same
A pure steam-related apparatus, which is one of apparatus in the group of pure steam generators generating pure steam from purified water, pipelines for pure steam and sterilizers using pure steam, is protected from discoloration, so-called "fouling", to ...
11/21/2000
6099693Movable water distiller
A movable water distiller capable of use in conjunction with a water heater includes a frame having a top which supports the water heater. The distiller components are supported on a tray having a guide assembly engaging a track assembly horizontally posi...
08/08/2000
6066232Method and vaporizer for vaporizing oxidation-sensitive compounds
The invention relates to a process for evaporating a liquid containing vaporizable oxidation-sensitive compounds in an evaporator in which the liquid is brought into contact with a heated solid surface for evaporation, by a process in which direct contact...
05/23/2000
6001222Solar heating and evaporation plant
A solar heating and evaporation plant is described which can be used to either produce distilled potable water from salty water or to heat water for industrial or domestic purposes. The plant includes a plurality of substantially equally spaced solar stil...
12/14/1999
5961787Solvent extraction apparatus
A solvent extraction apparatus which includes a heating plate, a vessel for containing a solvent, an extraction thimble to obtain a sample to be extracted from said vessel and a cooler for condensing evaporated solvent vapors. The cooler is connected to t...
10/05/1999
5935389Liquid distributor tray
A liquid distributor tray for a distillation column for distributing a descending liquid phase to be contacted with an ascending vapor phase within the distillation column. A tray is provided for collecting the descending liquid phase and has rows of aper...
08/10/1999
5900124Method and apparatus of concentrating chemicals for semiconductor device manufacturing
A method of concentrating chemicals for semiconductor devices, which includes the steps of heating a sample container by using a high-energy light source, vaporizing the chemicals by injecting a high-temperature gas into the sample container through an in...
05/04/1999
5827403Method of designing and manufacturing a delayed coker drum
A method of manufacturing a delayed coker drum as used in a refining process to receive coke feedstock as a hot liquid and in which the coke feedstock is cooled and quenched to produce solid coke, the hot liquid causing the drum to initially expand circum...
10/27/1998
5804038Reduction of metal stresses in delayed coking drums
The metal stresses in a delayed coke drum are reduced by externally cooling the coke drum near the junction of the drum shell and the supporting skirt thereof during the quench step. This reduces the metal stresses at the area around the welds of the drum...
09/08/1998
5800673Stack type evaporator
A stack type evaporator includes tubular elements 1 each having a plurality of inwardly protruding recessed ribs 7 which extend from an upper header portion 1a of the element to a lower header portion 1b, with the ribs serving as straight drainage canals ...
09/01/1998
5772850Apparatus for vapor compression distillation
A vapor compression distillation process and apparatus is provided wherein the apparatus includes a container having a generally vertical longitudinal center axis and bottom and top end caps, a plurality of generally vertical tubes spacedly disposed withi...
06/30/1998
5772843Evaporator
An evaporator includes a tank covered by a lightweight lid which is easily lifted to avoid high pressure in the event of an explosion. The bottom of the tank includes a flat portion which slopes downwardly toward an outlet in the sidewall of the tank. The...
06/30/1998
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