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Patent No. 5307162

Cloaking System Using Optoelectronically Controlled Camouflage

A Cloaking System designed to operate in the visible light spectrum, utilizes optoelectronics and/or photonic components to conceal an object within it.

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Class 205/531 - Foraminous or perforated (e.g., mesh, screen, etc.)


Subclass of Class 205 - Electrolysis: processes, compositions used therein, and methods of preparing the compositions
Definition: Subject matter wherein at least one of the electrodes which
No. of patents: 59
Last issue date: 05/28/2002


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NumberTitleIssue Date
6395153Diaphragm cell
The present invention pertains to electrolytic diaphragm cells, particularly for the electrolysis of brine to produce chlorine and caustic. The innovation resides generally in the discovery that electrolytic cell operation can be desirably enhanced by com...
05/28/2002
6203687Method for shutting down an electrolysis cell with a membrane and an oxygen-reducing cathode
The invention relates to a method for shutting down an electrolysis cell with a membrane and an oxygen-reducing cathode, which comprises, after the electrical power and oxygen supplies have been disconnected, in emptying the oxygen compartment and filling...
03/20/2001
5993620Anode for diaphragm electrochemical cell
The invention discloses a novel structure for an expandable anode to be used in diaphragm cells. This new structure comprises a conductor bar in the form of a copper core provided with a titanium layer having a first and a second pair of flexible expander...
11/30/1999
5776328Apparatus and process for electrochemically decomposing salt solutions to form the relevant base and acid
Electrolyzer for the electrolysis of a solution of a salt for the production of a solution containing an acid and a solution of a base, said electrolyzer comprising at least one elementary cell divided into three compartments by two cation-exchange membra...
07/07/1998
5565082Brine electrolysis and electrolytic cell therefor
A method for brine electrolysis using a gas electrode and an electrolytic cell therefor, in which gas electrode 31 permeable to gas and liquid is arranged in cathode chamber 24 in contact with ion-exchange membrane 22. Sodium hydroxide produced on electro...
10/15/1996
4996098Coated cation exchange fabric and process
A coated cation exchanged fabric having as its base a fluorinated cation exchange resin, oriented at least 1x, in alkali metal salt form and as its coating an unoriented or oriented melt-fabricable precursor of the same salt-form fluorinated cation exchan...
02/26/1991
4981563Electrolysis cell and method of producing chlorine
A membrane electrolysis cell, particularly suited for producing chlorine, caustic soda and hydrogen by the electrolysis of brine, has its cathode formed by a static bed of a packing material capable of withstanding the cathodic conditions confined between...
01/01/1991
4919791Controlled operation of high current density oxygen consuming cathode cells to prevent hydrogen formation
A process for the electrolysis of an alkali metal halide brine is operated in an electrolytic cell having an anode compartment containing at least one anode, a cathode compartment containing at least one cathode, and a cation exchange membrane separating ...
04/24/1990
4790915Process for the electrolysis of alkali metal chloride solutions
A process is described for electrolyzing aqueous alkali metal chloride solutions in a membrane cell which contains an anode chamber with the anode and a cathode chamber with the cathode, the two chambers being separated from one another by a cation exchan...
12/13/1988
4789443Novel electrolysis cell
An electrolysis cell comprising a housing containing a plurality of alternating anode units and cathode units and an ion permeable membrane sheet disposed therebetween and having in direct contact with the opposite sides of the membrane sheet a porous ano...
12/06/1988
4744879Oxygen-cathode for use in electrolysis of alkali chloride and process for preparing the same
Disclosed herein are an oxygen-cathode for use in electrolysis or an alkali chloride, comprising a current collector made of a compact carbonaceous material, electrode substrate(s) made of a porous carbonaceous material and the catalyst carried on the ele...
05/17/1988
4744873Multiple compartment electrolytic cell
The invention is an electrode/gas chamber combination comprising: a gas-permeable, vertically disposed electrode having oppositely disposed first and second vertical surfaces; a gas supply chamber in fluid and electrical contact with the electrode at a plurali...
05/17/1988
4687558High current density cell
A filter press membrane electrolytic cell having at least one cathode and one anode sandwiched about a permselective ion exchange membrane which employs a cathode having a first layer and a second layer cooperative with the membrane such that the voltage ...
08/18/1987
4666574Ion exchange membrane cell and electrolytic process using thereof
An ion exchange membrane cell comprises an anode, a cathode, an anode compartment and a cathode compartment formed by partitioning by an ion exchange membrane. A gas and liquid permeable porous non-electrode layer is bonded at least one of surface of said...
05/19/1987
4663003Electrolysis cell
An electrolysis cell comprising a housing containing a plurality of alternating anode units and cathod units and an ion permeable membrane sheet disposed therebetween and having in direct contact with the opposite sides of the membrane sheet a porous anod...
05/05/1987
4627897Process for the electrolysis of liquid electrolytes using film flow techniques
This process, in which gas bubbles are formed in the electrolyte, is carried out in electrolytic cells which are non-partitioned or partitioned by at least one separator and in which at least one electrode is perforated. For this purpose, the electrolyte ...
12/09/1986
4588483High current density cell
A filter press membrane electrolytic cell having at least one cathode and one anode sandwiched about a permselective ion exchange membrane which employs a cathode having a first layer and a second layer cooperative with the membrane such that the voltage ...
05/13/1986
4581105Electrochemical cell operating near the critical point of water
The invention is a method for operating an electrochemical cell of the type having an anode and a cathode which are in contact with an aqueous electrolyte in the presence of at least one electroactive species, said method comprising: electrochemically con...
04/08/1986
4578159Electrolysis of alkali metal chloride brine in catholyteless membrane cells employing an oxygen consuming cathode
A process for the electrolysis of an aqueous solution of an alkali metal halide in an electrolytic cell having an anode compartment containing at least one anode, a cathode compartment containing at least one cathode, and a cation exchange membrane separa...
03/25/1986
4574037Vertical type electrolytic cell and electrolytic process using the same
Disclosed is a vertical type electrolytic cell partitioned by an ion exchange membrane into an anode compartment and a cathode compartment, the cathode compartment being divided by a non-perforated cathode plate into a cathode gas generation room and a ca...
03/04/1986
4560452Unitary central cell element for depolarized, filter press electrolysis cells and process using said element
Unitary, cast structural element for filter press depolarized electrolysis cell which incorporates into a single unit the central barrier between the peripheral boundaries for the adjacent anode compartment and adjacent cathode compartment of two electrol...
12/24/1985
4536263Process for generating halogen using novel electrolysis cell
An electrolysis cell comprising a housing containing a plurality of alternating anode units and cathode units and an ion permeable membrane sheet disposed therebetween and having in direct contact with the opposite sides of the membrane sheet a porous ano...
08/20/1985
4488947Process of operation of catholyteless membrane electrolytic cell
An improved process for the electrolysis of an aqueous electrolyte in an electrolytic membrane cell is provided. The membrane cell is comprised of an anode compartment having at least one anode and containing the aqueous electrolyte and a cathode compartm...
12/18/1984
4427523Cathode for electrolysis of alkali metal chloride
A porous cathode for electrolysis of an alkali metal chloride comprises a substrate and a coating comprising, a catalyst, a water repellent material and a pore forming agent. The water repellent material is a combination of a first fluorinated resin havin...
01/24/1984
4417959Electrolytic cell having a composite electrode-membrane structure
A novel electrolytic cell for the electrolysis of aqueous solutions of alkali metal chlorides which comprises a cell housing containing a pair of electrodes of opposite polarity. A hydraulically impermeable ion exchange membrane is positioned between and ...
11/29/1983
4397730Electrolytic cells with alkaline electrolytes containing trifluoromethylane sulfonic acid
An electrolytic system is provided with a gas fed cathode in contact with an electrolyte to which an additive of trifluoromethane sulfonic acid (TFMSA) is added. The system can be employed in fuel cells, industrial electrolytic cells for production of gas...
08/09/1983
4394229Cathode element for solid polymer electrolyte
Disclosed is a solid polymer electrolyte unit, an electrolytic cell containing the unit, and an electrolytic process utilizing the unit. The solid polymer electrolyte unit has anodic and cathodic means contacting opposite surfaces thereof, and is characte...
07/19/1983
4381979Electrolysis cell and method of generating halogen
Halogen is produced by electrolyzing an aqueous halide in a specially designed cell. The cell comprises an anolyte chamber and a catholyte chamber separated by a permeable membrane or diaphragm, notably an ion exchange (generally cation exchange) polymer....
05/03/1983
4379034Start-up procedure for oxygen electrode
This disclosure is directed to an oxygen (air) cathode start-up procedure capable of reducing operating voltage for such cathode without reducing useful electrode life by subjecting it to less (gauge) pressure than it will encounter during operation in co...
04/05/1983
4377455V-Shaped sandwich-type cell with reticulate electodes
An electrolytic cell for the electrolysis of aqueous solutions to produce gaseous products is comprised of a housing, a separator traversing said housing to form an anode compartment and a cathode compartment, an anode in the anode compartment, a cathode ...
03/22/1983
4366037Method of increasing useful life expectancy of microporous separators
A foraminous protective cathode for diaphragm-type electrolytic cells having a steel cathode and polymeric microporous separator reduces or eliminates separator plugging thereby increasing useful life-expectancy of the separator. The protective cathode po...
12/28/1982
4364805Gas electrode operation
This disclosure is directed to operating gas electrodes, e.g., oxygen (air) cathodes at "blow-through" pressures of oxygen-containing gas, viz., oxygen or air pressures exceeding the pressure(s) at which bubble-through of such gas occurs, which pressures ...
12/21/1982
4354905Method for the electrolysis of an aqueous solution of an alkali metal chloride and an anode therefor
The use of a perforated plate anode in combination with a cation exchange membrane has been found to be extremely effective for rendering the current distribution in the cation exchange membrane uniform in practice of the ion exchange membrane process for...
10/19/1982
4341606Method of operating electrolytic cells having massive dual porosity gas electrodes
A process for operating an electrolytic cell having a relatively-massive dual porosity gas electrode particularly well suited and adapted for utilization as a vertically-disposed oxygen gas-bearing electrochemically reducing cathode in electrolytic cells ...
07/27/1982
4312720Electrolytic cell and process for electrolytic oxidation
An electrolytic cell and a method of operating an electrolytic cell having an electrically conductive, foraminous separator support element which is maintained at a voltage potential sufficient to minimize the occurrence of substantial amounts of anodic r...
01/26/1982
4279709Preparation of porous electrodes
Electrodes with porous coatings are produced using an inorganic compound which is soluble in an aqueous solution, as the pore former in the coating. The inorganic pore former may be removed from the coating while the electrode is being used in an electrol...
07/21/1981
4273630Process for the start-up of membrane cells for the electrolysis of aqueous salt solutions
A process for the start-up of membrane cells for the electrolysis of an aqueous salt solution for cells having an anode compartment containing a plurality of anodes, a cathode compartment containing a plurality of cathodes and an ion exchange membrane sep...
06/16/1981
4268366Method of concentrating alkali hydroxide in three compartment hybrid cells
A flow of an alkali hydroxide solution such as chloralkali cell liquor containing NaOH and NaCl is introduced into the anode compartment of a hybrid cell which also includes a cathode compartment and a central compartment. The anode compartment is defined...
05/19/1981
4265719Electrolysis of aqueous solutions of alkali-metal halides employing a flexible polymeric hydraulically-impermeable membrane disposed against a roughened surface cathode
Cell and process for operating chlor-alkali brine electrolysis cell which contains an anode, a cathode, and a non-rigid permionic membrane. Non-rigid, non-impregnated membrane is disposed against the cathode face by a positive pressure differential mainta...
05/05/1981
4256551Electrolytic process
A process for electrolysing at least a proportion of a liquid comprising an electrolyte which process comprises passing the liquid between electrodes, at least one of which is an anode and at least one of which is a cathode, the liquid being in a state of...
03/17/1981
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