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Patent No. 5719655

System for magnetically attaching templeless eyewear to a person

A system of eyewear that eliminates the need for hinges on the frames of the eyewear.

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Class 502/424 - Zinc containing


Subclass of Class 502 - Catalyst, solid sorbent, or support therefor: product or process of making
Definition: Subject matter in which the inorganic component includes
No. of patents: 37
Last issue date: 04/22/2008


NumberTitleIssue Date
7360967Solubilization and disposal of radioactive scale and sludge
A process to transform solid, low-level, radioactive waste produced from oil and gas production into a form that may be safely disposed of, such as by re-injection into geologic formations in the Earth. ...
04/22/2008
7303683Microorganism-removing filter medium having high isoelectric material and low melt index binder
A filter medium capable of removing microorganisms from a fluid such as water. The filter medium includes particles of activated carbon, particles of a substantially insoluble inorganic material having an isoelectric point greater than the fluid being filtered. A lo...
12/04/2007
7220704Desulfurization and novel compositions for same
A composition comprising a promoter and a metal oxide selected from the group consisting of a gallium oxide, an indium oxide, and combinations of any two or more thereof, wherein at least a portion of the promoter is present as a reduced valence promoter and methods...
05/22/2007
7160366Filter element
An improved filter element which can be used in gas masks is formed of short lengths of porous monolithic carbon formed by partially curing a phenolic resin to a solid, comminuting the partially cured resin, extruding the comminuted resin, sintering the extruded res...
01/09/2007
6589904Activated carbon and method for producing it
The present invention provides an activated carbon produced by a process, which includes: activating a carbonaceous material, to obtain an activated carbonaceous material; and contacting the activated carbonaceous material with an acid. Another embodiment of t...
07/08/2003
6479429Particulate compositions
A process to produce a sorbent composition is provided. This process comprises: (a) contacting a zinc component, an alumina component, and a dispersant component, to form a mixture; and then (b) spray drying said mixture to form particles; and then (c) co...
11/12/2002
6471886Absorption media for irreversibly gettering thionyl chloride
Thionyl chloride is a hazardous and reactive chemical used as the liquid cathode in commercial primary batteries. Contrary to previous thinking, ASZM-TEDA.RTM. carbon (Calgon Corporation) reversibly absorbs thionyl chloride. Thus, several candidate materi...
10/29/2002
6248691Method of making mesoporous carbon
Mesoporous carbon and method of making involves forming a mixture of a high carbon-yielding carbon precursor that when carbonized yields greater than about 40% carbon on a cured basis, and an additive that can be catalyst metal and/or low carbon-yielding ...
06/19/2001
6225256Activated carbon feedstock
An activated carbon and method of producing and using same. Pecan hulls are fractured to produce a particle size of less than a predetermined size (e.g., 75 microns), chemically activated in an acid solution, carbonized, and washed....
05/01/2001
6060424High energy density carbons for use in double layer energy storage devices
The present invention relates to carbon and methods for preparing same. In particular, this invention relates to the preparation of novel carbons derived from lignocellulosic materials (particularly wood-based lignocellulosic materials) which are useful f...
05/09/2000
6043183High power density carbons for use in double layer energy storage devices
The present invention relates to carbon and methods for preparing same. In particular, this invention relates to the preparation of novel carbons derived from lignocellulosic materials (particularly wood-based lignocellulosic materials) which are useful f...
03/28/2000
6030922Synthesizing carbon from sludge
The synthesis of carbon, particularly in an activated form, from sludge materials such as composed of biosolids and the like is described wherein the treated material is subjected to processing including chemical activation, light and humidity treatment, ...
02/29/2000
5990041Mesoporous activated carbon filaments
This invention relates to a mesoporous carbon material in the form of filaments having a high surface area. A process is also provided to produce mesoporous carbon material of high surface area. The process comprises drying a carbon material, surface oxid...
11/23/1999
5710091Sorbent compositions
A process to produce a sorbent composition is provided. This process comprises: (a) contacting a zinc component, an alumina component, and a dispersant component, to form a mixture; and then (b) spray drying said mixture to form particles; and then (c) co...
01/20/1998
5614459Process for making activated charcoal
An improved process is provided for the preparation of activated carbon, which comprises swelling a carbonaceous material in a polar organic solvent containing an activating agent, removing the solvent, carbonizing the material, and removing the activatin...
03/25/1997
5538932Preparation of high activity, high density activated carbon with activatable binder
An improved method of manufacturing hard activated carbon pellets is disclosed in which a lignocellulose material is chemically activated to form a char and heated to a temperature above about 360° C. which char is ground and then agglomerated in a pin m...
07/23/1996
5324703Method of preparation of gasoline vapor adsorptive activated carbon
A method of manufacturing hard pelleted activated carbon is disclosed in which pellets are first formed by agglomeration in a pin mixer followed by pelleting the plasticized acid char (without the use of additional binders), and then activating the carbon...
06/28/1994
5304527Preparation for high activity, high density carbon
Lignocellulosic carbonaceous material is activated to produce a high activity, high density gas-phase activated carbon under conditions which effectively alter the particle pore volume size distribution to optimize the carbon's mesoporosity. A novel proce...
04/19/1994
5276000Preparation for high activity, high density carbon
Lignocellulosic carbonaceous material is activated to produce a high activity, high density gas-phase activated carbon under conditions which effectively alter the particle pore volume size distribution to optimize the carbon's mesoporosity. An improved p...
01/04/1994
5271917Activation of carbon fiber surfaces by means of catalytic oxidation
Carbon fibers having substantially increased active surface area and total surface area are used to enhance carbon fiber bonding to matrix materials in carbon fiber products. The enhanced active surface area and total surface area are produced by carbon r...
12/21/1993
5250491Preparation of high activity, high density activated carbon
Lignocellulosic carbonaceous material is activated to produce a high activity, high density gas-phase activated carbon under conditions which effectively alter the particle pore volume size distribution to optimize the carbon's mesoporosity. An agglomerat...
10/05/1993
5212144Process for making chemically activated carbon
An improved apparatus and method for the manufacture of activated carbon wherein a carbonaceous raw material impregnated with a chemical activating agent is treated by controlling the rate of heat transfer to the particles via indirect heating of the acti...
05/18/1993
5206207Preparation for high activity high density carbon
Carbonaceous material is activated to produce a high activity, high density gas-phase activated carbon under conditions which effectively alter the particle pore size distribution to optimize the carbon's mesoporosity. The carbon is particularly suited fo...
04/27/1993
5204310High activity, high density activated carbon
Lignocellulosic carbonaceous material is activated to produce a high activity, high density gas-phase activated carbon under conditions which effectively alter the particle pore size distribution to optimize the carbon's mesoporosity. Alternative processe...
04/20/1993
5166123Carbonaceous adsorbent for removal of pyrogen from water
A carbonaceous adsorbent to be used for the removal of a pyrogen dissolved in water is disclosed. The adsorbent is obtained by carbonizing porous beads of a cross-linked polymer. This adsorbent is favorably used for the removal of endotoxin in the product...
11/24/1992
5162286Method of producing granular activated carbon
There is described a method of producing activated carbon using the phosphoric acid activation process. The starting material employed is a young carbonaceous vegetable product which is comminuted to form particles having a very small particle size. The p...
11/10/1992
5102855Process for producing high surface area activated carbon
Process for producing activated carbon, preferably high surface area activated carbon, from inexpensive cellulosic precursors, such as paper, by pretreating the cellulosic precursor with an activating agent, such as phosphoric acid, followed by carbonizat...
04/07/1992
5039651Chemically activated shaped carbon, process for producing same and use thereof
A chemically activated shaped carbon suitable for adsorbing and desorbing hydrophobic organic compounds and having the specific properties in bulk density, pore volume, bulk density x pore volume, surface area, bulk density x surface area, mean pore size ...
08/13/1991
5021391Carbonaceous adsorbent for removal of pyrogen and method of producing pure water using same
A carbonaceous adsorbent to be used for the removal of a pyrogen dissolved in water is disclosed. The adsorbent is obtained by carbonizing porous beads of a cross-linked polymer. This adsorbent is favorably used for the removal of endotoxin in the product...
06/04/1991
4689316Method of preparing supported catalysts
Metal vapor may be deposited on catalyst supports to produce supported catalysts. This process allows deposition deep in the pores of the catalyst support without the impregnation problems of liquid phase deposition of catalytic material on porous catalys...
08/25/1987
4544650Process for manufacturing hydrophobic adsorbents
A composite mass with a major proportion of inorganic material and a minor proportion of organic material, preferably from industrial waste products, is activated by dehydration of its organic constituents whereupon the mass is subjected to a two-phase py...
10/01/1985
4285831Process for production of activated carbon fibers
A process for producing activated carbon fibers of high adsorption capacity which comprises oxidizing an acrylonitrile based fiber, wherein the acrylonitrile based fiber is a homopolymer of acrylonitrile, a copolymer containing about 60% by weight or more...
08/25/1981
4256607Process for production of activated carbon fibers
A process for producing activated carbon fibers comprising subjecting an acrylonitrile based fiber to oxidation processing in an oxidizing atmosphere at a temperature of about 200° C. to about 300° C. while applying a tension to the fiber until the amou...
03/17/1981
4234326Filter assemblies with layers of activated carbon fibrous cloth
A gas adsorption filter consisting of a gas inlet, a gas outlet and one or more layers of charcoal cloth, the layers of which are arranged to lie substantially parallel to the direction of the gas flow between the gas inlet and the gas outlet....
11/18/1980
4148753Neutralization of phosphoric acid activated carbon
Cellulosic carbon that has been activated by a phosphoric acid process, is acid neutralized by contacting the carbon with an aqueous suspension of an additive material comprising a metal oxide or hydroxide of aluminum, zinc, or one of the alkaline earth e...
04/10/1979
4034071Immunoassay procedures
The technique of separating a tagged bound material from the same unbound material in immunoassay procedures is improved by utilizing a clathrate sorbent to carry out the separation. A clathrate sorbent, for example, comprises a mixture of hydrate zinc su...
07/05/1977
4024076Process for producing granular sulfurized material, granular carbon or granular activated carbon
A process for producing an infusible and insoluble granular sulfurized material by reacting a petroleum heavy material and sulfur with stirring in the presence of a reaction medium and further in the presence of, if necessary, an infusible and insoluble s...
05/17/1977
 
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