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Synthesis of Columnar Hydrogel Colloidal Crystals in Water-organic Solvent Mixture
Patent relating to the synthesis of columnar hydrogel colloidal crystals in a water-organic solvent mixture.
Date:
September 21, 2006
Creator:
Hu, Zhibing; Zhou, Jun; Cai, Tong; Tang, Shijun & Marquez, Manuel
System:
The UNT Digital Library
Automatically processed alpha-track radon monitor
An automatically processed alpha-track radon monitor is provided which includes a housing having an aperture allowing radon entry, and a filter that excludes the entry of radon daughters into the housing. A flexible track registration material is located within the housing that records alpha-particle emissions from the decay of radon and radon daughters inside the housing. The flexible track registration material is capable of being spliced such that the registration material from a plurality of monitors can be spliced into a single strip to facilitate automatic processing of the registration material from the plurality of monitors. A process for the automatic counting of radon registered by a radon monitor is also provided.
Date:
May 2, 1991
Creator:
Langner, G. H. Jr.
System:
The UNT Digital Library
Synthesis of actinide nitrides, phosphides, sulfides and oxides
This invention is comprised of a process of preparing an actinide compound of the formula An{sub x}Z{sub y} wherein An is an actinide metal atom selected from the group consisting of thorium, uranium, plutonium, neptunium, and americium, x is selected from the group consisting of one, two or three, Z is a main group element atom selected from the group consisting of nitrogen, phosphorus, oxygen and sulfur and y is selected from the group consisting of one, two, three or four, by admixing an actinide organometallic precursor wherein said actinide is selected from the group consisting of thorium, uranium, plutonium, neptunium, and americium, a suitable solvent and a protic Lewis base selected from the group consisting of ammonia, phosphine, hydrogen sulfide and water, at temperatures and for time sufficient to form an intermediate actinide complex, heating said intermediate actinide complex at temperatures and for time sufficient to form the actinide compound, and a process of depositing a thin film of such an actinide compound, e.g., uranium mononitride, by subliming an actinide organometallic precursor, e.g., a uranium amide precursor, in the presence of an effective amount of a protic Lewis base, e.g., ammonia, within a reactor at temperatures and for time …
Date:
April 2, 1991
Creator:
Van Der Sluys, W. G.; Burns, C. J. & Smith, D. C.
System:
The UNT Digital Library
Three-Axis Particle Impact Probe
Three-axis particle impact probes detect particle impact vectors along x-, y-, and z-axes by means of a head mounted on the outer end of a shaft that is flexibly mounted in silicone rubber at the top of a housing so as to enable motion imparted to the head upon impact to be transmitted to a grounded electrode secured to the shaft within the housing. Excitable electrodes are mounted in the housing in a fixed position, spaced apart from the ground electrode and forming, with the ground electrode, capacitor pairs. Movement of the ground electrode results in changes in capacitance, and these differences in capacitance are used for measurement or derivation of momentum vectors along each of the three axes. In one embodiment, the ground electrode is mounted at the base of the shaft and is secured to a silicone rubber layer at the top of the housing, providing for cantilevered movement. In another embodiment, the shaft is mounted at its mid point in a flexible bushing so that it undergoes pivotal movement around that point.
Date:
April 2, 1991
Creator:
Fasching, G. E.; Smith, Nelson S., Jr. & Utt, C. E.
System:
The UNT Digital Library
Moment-free toroidal magnet background of the invention
A toroidal magnet is described for confining a high magnetic field for use in fusion reactor research and nuclear particle detection. The magnet includes a series of conductor elements arranged about and fixed at its small major radius portion to the outer surface of a central cylindrical support each conductor element having a geometry such as to maintain the conductor elements in pure tension when a high current flows therein, and a support assembly which redistributes all or part of the tension which would otherwise arise in the small major radius portion of each coil element to the large major radius portion thereof.
Date:
March 2, 1981
Creator:
unknown
System:
The UNT Digital Library
Hoisting Drum
Patent for improvements to hoisting drums for use in drilling oil, gas, and water wells, with the object being "to employ a plurality of hoisting drums upon the same shaft so that the cable may be wound partly on one drum and partly on another" (lines 73-76) such that the danger of cable cutting is decreased and the speed of operation is increased, including illustrations.
Date:
May 2, 1922
Creator:
Suman, John R. & Gamble, Adrian R.
System:
The Portal to Texas History
Power-Transmission Mechanism
Patent for a power transmission with improvements to mechanisms related to frame adjustment, lubrication, motion transmission, and speed gearing, among others.
Date:
May 2, 1922
Creator:
Mays, James L.
System:
The Portal to Texas History
Apparatus for Separating Substances of Different Dielectric Capacities.
Patent for an apparatus for separating substances of different dielectric capacities; the objective of this invention is to provide means for the material to be separated into its component particles for the purpose of producing material of dielectric hysteric impedance and collecting the separated particles according to the difference in time that the particles maintain their polarity due to the impedance generated from them.
Date:
August 2, 1921
Creator:
Sutton, Henry M.
System:
The Portal to Texas History
Attachment for T-Stands
Patent for improvement of T stands, which includes a vertical rod that makes attachment and removal easier.
Date:
August 2, 1921
Creator:
Adamson, John Selden
System:
The Portal to Texas History
Boll-Weevil Catcher
Patent for a Boll-Weevil Catcher. This inventions allows for an attachment to cultivators to catch weevils existing on growing cotton plants. The weevils are extracted, captured in a pan, and can be disposed of. This is an important tool that catches and destroys insects without damaging the plants.
Date:
August 2, 1921
Creator:
Hitt, Reed R.
System:
The Portal to Texas History
Brick-Kiln Construction
Patent for Brick Kiln Construction. The particular innovation enables bricks and tiles to be manufactured, burned, and dried in one building. This helps in saving fuel, using the fuel economically, and reducing the time needed for the burning of bricks.
Date:
August 2, 1921
Creator:
Pokorny, James T.
System:
The Portal to Texas History
Culinary Utensil
Patent for a culinary utensil designed as a unique fork which can retrieve articles from a boiling pot without having to expose the hands to the steam.
Date:
August 2, 1921
Creator:
Brown, Elmer D.
System:
The Portal to Texas History
Door Attachment.
Patent for a weather strip attachment for doors which would automatically extend from the bottom of the door to the floor when the door is in the closed position and retract to the bottom edge of the door when the door is opened.
Date:
August 2, 1921
Creator:
Swenson, Frank O.
System:
The Portal to Texas History
High-Pressure Suction Fan and Blower.
Patent for "a fan which will operate in a continuous and highly efficient manner and increase the air pressure with a reduced power of operation" and "may be used either in conjunction with a cotton gin...or it may be used for any other purpose where suction or blast fans are used" (lines 31-33, 10-15). It includes an illustration.
Date:
August 2, 1921
Creator:
Blackmon, Enoch J.
System:
The Portal to Texas History
Plaiting Device.
Patent for an improved plaiting device that simplifies the steaming and pressing of dress goods.
Date:
August 2, 1921
Creator:
Knaur, Laura L.
System:
The Portal to Texas History
Rotary Fountain-Brush
Patent for a Rotary Fountain-Brush. The innovation of this item is that the water or cleaning agent fed into the brush causes it to rotate, using the medium of a water wheel or rotary.
Date:
August 2, 1921
Creator:
Hargis, Lawrence H.
System:
The Portal to Texas History
Street-Directory.
Patent for business guide and street directory to help identify locations of business houses, streets, and street numbers more quickly and effectively.
Date:
August 2, 1921
Creator:
Marshall, F.N.
System:
The Portal to Texas History
Tool-Joint
Patent for tool joints to be used in detachable connection between lengths of pipe. Specifically used with drill pipe for drilling deep wells for oil, gas, or water.
Date:
August 2, 1921
Creator:
Thomas, Avery H.
System:
The Portal to Texas History
Wrench
Patent for wrenches that provides a means for engaging faces of the jaws to be renewed or changed. This improvement also allows for secure placement without loss of motion.
Date:
August 2, 1921
Creator:
Belcher, Mark
System:
The Portal to Texas History
Animal-Trap.
Patent for an animal trap that allows an animal, most suitably animals of the rodent species, to enter a rectangular box from any of its four sides through a gate formed of downwardly inclined wires pivoted above each of said openings inside of the box. When an animal enters the trap, they are unable to leave because of the downwardly bent ends of transverse bars secured to the said inclined wires.
Date:
November 2, 1920
Creator:
Smith, James W.
System:
The Portal to Texas History
Broom.
Patent for a broom which allows the user to easily replace the broom straw or fiber with new straw or fiber when it is worn out. The intention is to decrease the cost of brooms while still producing "a strong and relatively durable broom structure" (lines 18-19).
Date:
November 2, 1920
Creator:
Taylor, James T.
System:
The Portal to Texas History
Filter
Patent for a filter for purifying gasoline or other oil used in cleaning establishments.
Date:
November 2, 1920
Creator:
Daniel, William A.
System:
The Portal to Texas History
Ground-Mulshing and Insect-Displacing Drag.
Patent for a device to mulch the ground and kill insects, especially for cotton plants. The device is meant to drag behind a cultivator.
Date:
November 2, 1920
Creator:
Rosenberg, Oliver H.
System:
The Portal to Texas History
Hame-Fastener.
Patent for a new and useful improvement to an invention known as the hame fastener. Its purpose is to adjust and make a tight or loose connection between the hame and a desired object.
Date:
November 2, 1920
Creator:
Arnold, Thomas J.
System:
The Portal to Texas History