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UNT Libraries Government Documents Department
19,457
UNT College of Arts and Sciences
56
UNT College of Engineering
19
Private Collection of J. K. Johnson
4
Grayson College Foundation
1
Moody Medical Library, UT
1
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1
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1
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1
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1
Collection
Texas Patents
18,569
Office of Scientific & Technical Information Technical Reports
887
UNT Scholarly Works
76
Rescuing Texas History, 2019
5
The Civil War and its Aftermath: Diverse Perspectives
1
Rescuing Texas History, 2017
1
Texas Cultures Online
1
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1
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1
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Cermets and method for making same
The present invention is directed to a method for making a wide variety of general-purpose cermets and for radioactive waste disposal from ceramic powders prepared from urea-dispersed solutions containing various metal values. The powders are formed into a compact and subjected to a rapid temperature increase in a reducing atmosphere. During this reduction, one or more of the more readily reducible oxides in the compact is reduced to a selected substoichiometric state at a temperature below the eutectic phase for that particular oxide or oxides and then raised to a temperature greater than the eutectic temperature to provide a liquid phase in the compact prior to the reduction of the liquid phase forming oxide to solid metal. This liquid phase forms at a temperature below the melting temperature of the metal and bonds together the remaining particulates in the cermet to form a solid polycrystalline cermet.
Date:
April 1, 1981
Creator:
Aaron, W. S.; Kinser, D. L. & Quinby, T. C.
System:
The UNT Digital Library
Silo.
Patent for a reinforced concrete silo, including specifications and illustrations.
Date:
May 29, 1917
Creator:
Abbett, Edgar J.
System:
The Portal to Texas History
Baling-Press.
Patent for "new and useful Improvements in Baling-Presses." (line 6-7) including instructions and illustrations.
Date:
February 20, 1906
Creator:
Abbot, Thomas & Abbot, Harry B.
System:
The Portal to Texas History
Process of and Apparatus for Making Halids
Patent for a new and improved process of and apparatus for making halides which transmit the necessary heat to the reaction mass by preheating the chlorine and not through the wall as in usual types of retorts.
Date:
July 8, 1919
Creator:
Abbott Lyle Stockton
System:
The Portal to Texas History
Plow-Stock.
Patent for a simply, durably, and efficiently constructed plow-stock that "will admit of changes being made in an expeditious and convenient manner to facilitate the grouping of the shares or plows to be carried by the stock" (lines 11-14).
Date:
July 30, 1895
Creator:
Abbott, Joseph W.
System:
The Portal to Texas History
Utilization of Aluminum-Chlorid Residues.
Patent for "new and useful Improvements in the Utilization of Aluminum Chlorid Residues" (lines 6-7) including instructions and illustrations.
Date:
February 24, 1920
Creator:
Abbott, Lyle Stockton
System:
The Portal to Texas History
Rotary Tooth-Brush
Patent for a crank powered rotary toothbrush. Designed with the purpose of easily cleaning teeth with a simple automatic mechanism, with added projection via a shield around the brush for protecting gums and cheeks from being scraped by the brush.
Date:
October 8, 1918
Creator:
Abel, Charles
System:
The Portal to Texas History
Apparatus for Handling Brick.
Patent for an apparatus for handling brick "whereby the number of brick handled by a single hand may be greatly increased" (lines 9-11) including illustrations.
Date:
January 3, 1888
Creator:
Aber, Edgar
System:
The Portal to Texas History
BRICK-KILN.
Patent for brick-kilns to "provide means for burning bricks in a much shorter time and more effectively than is possible with usual constructions, and, further, to protect the kiln-walls against the injurious effects of heat" (lines 9-13).
Date:
October 30, 1900
Creator:
Aber, Edgar
System:
The Portal to Texas History
Veneer Basket.
Patent for stronger, lighter construction of baskets frequently used in shipping fruit, although the improvement "may be used for any and all purposes of which it is capable" (lines 13-15).
Date:
June 3, 1902
Creator:
Aber, Edgar
System:
The Portal to Texas History
Veneer-Bending Machine
Patent for improving veneer bending through a slower process which allows the entirety of the veneer to be heated.
Date:
September 30, 1902
Creator:
Aber, Edgar
System:
The Portal to Texas History
Combination Well-Packer and Setting-Tool.
Patent for a well packer and setting tool for the prevention of intermingling between oil and water in a well when used by itself or with other pipes. The invention allows for the packer to be set using the setting tool which can then be removed once the packer is in place.
Date:
January 6, 1920
Creator:
Abercrombie, Jamie & Dunman, Nesbit M.
System:
The Portal to Texas History
Laser barometer
This paper describes an invention of a pressure measuring instrument which uses laser radiation to sense the pressure in an enclosed environment by means of measuring the change in refractive index of a gas - which is pressure dependent.
Date:
April 1, 1998
Creator:
Abercrombie, K.R.; Shiels, D. & Rash, T.
System:
The UNT Digital Library
Jack
Patent for a new Jack's that can use in motor cars and other vehicles, It is folded into a compact condition, for storage, within the tool chest of the machine, including illustrations.
Date:
January 11, 1916
Creator:
Abernathy, George J.
System:
The Portal to Texas History
Gate Latch
Patent for a gate latch. Illustration included.
Date:
December 29, 1903
Creator:
Abernathy, James Rubin
System:
The Portal to Texas History
Cotton Chopper
Patent for a cotton chopper. Illustration included.
Date:
April 6, 1909
Creator:
Abrams, Frederic
System:
The Portal to Texas History
Seal-Padlock
Patent for a seal padlock, designed to "render it absolutely impossible to gain access to the interior of the lock" (lines 12-14). Illustrations included.
Date:
June 11, 1907
Creator:
Abrams, Frederic
System:
The Portal to Texas History
Cultivator Shovel
Patent for a small shovel, with a blade that can be detached for repairs or replacement.
Date:
September 26, 1916
Creator:
Abramson, August
System:
The Portal to Texas History
Instrument, System and Method for Automated Low Cost Atmospheric Measurements
Patent relating to an instrument, system and method for automated low cost atmospheric measurements.
Date:
May 11, 2006
Creator:
Acevedo, Miguel F.; Waller, William T. & Nebgen, Gilbert B.
System:
The UNT Digital Library
Railway-Rail Support and Coupling.
Patent for improved combined railway rail supports and joints that increases the efficiency and utility of such devices. Eliminates the need of employing additional bolts or other fastening means.
Date:
July 29, 1913
Creator:
Acker, Charles C.
System:
The Portal to Texas History
Plutonium recovery from spent reactor fuel by uranium displacement
This report discusses a process for separating uranium values and transuranic values from fission products containing rare earth values when the values which are contained together in a molten chloride salt electrolyte. A molten chloride salt electrolyte with a first ratio of plutonium chloride to uranium chloride is contacted with both a solid cathode and an anode having values of uranium and fission products including plutonium. A voltage is applied across the anode and cathode electrolytically to transfer uranium and plutonium from the anode to the electrolyte while uranium values in the electrolyte electrolytically deposit as uranium metal on the solid cathode in an amount equal to the uranium and plutonium transferred from the anode causing the electrolyte to have a second ratio of plutonium chloride to uranium chloride. Then the solid cathode with the uranium metal deposited thereon is removed and molten cadmium having uranium dissolved therein is brought into contact with the electrolyte resulting in chemical transfer of plutonium values from the electrolyte to the molten cadmium and transfer of uranium values from the molten cadmium to the electrolyte until the first ratio of plutonium chloride to uranium chloride is re-established.
Date:
December 31, 1991
Creator:
Ackerman, J. P.
System:
The UNT Digital Library
Process to remove rare earth from IFR electrolyte
The invention is a process for the removal of rare earths from molten chloride electrolyte salts used in the reprocessing of integrated fast reactor fuel (IFR). The process can be used either continuously during normal operation of the electrorefiner or as a batch process. The process consists of first separating the actinide values from the salt before purification by removal of the rare earths. After replacement of the actinides removed in the first step, the now-purified salt electrolyte has the same uranium and plutonium concentration and ratio as when the salt was removed from the electrorefiner.
Date:
January 1, 1992
Creator:
Ackerman, J. P. & Johnson, T. R.
System:
The UNT Digital Library
Magnesium transport extraction of transuranium elements from LWR fuel
This report discusses a process of separating transuranium actinide values from uranium values present in spent nuclear oxide fuels which contain rare earth and noble metal fission products. The oxide fuel is reduced with Ca metal in the presence of CaCl{sub 2} and a U-Fe alloy containing not less than about 84% by weight uranium at a temperature in the range of from about 800{degrees}C to about 850{degrees}C to produce additional uranium metal which dissolves in the U-Fe alloy raising the uranium concentration and having transuranium actinide metals and rare earth fission product metals and the noble metal fission products dissolved therein. The CaCl{sub 2} having CaO and fission products of alkali metals and the alkali earth metals and iodine dissolved therein is separated and electrolytically treated with a carbon electrode to reduce the CaO to Ca metal while converting the carbon electrode to CO and CO{sub 2}. The Ca metal and CaCl{sub 2} is recycled to reduce additional oxide fuel. The U-Fe alloy having transuranium actinide metals and rare earth fission product metals and the noble metal fission products dissolved therein is contacted with Mg metal which takes up the actinide and rare earth fission product metals. The U-Fe …
Date:
December 31, 1991
Creator:
Ackerman, J. P.; Battles, J. E.; Johnson, T. R.; Miller, W. E. & Pierce, R. D.
System:
The UNT Digital Library
Plutonium recovery from spent reactor fuel by uranium displacement
This report discusses a process for separating uranium values and transuranic values from fission products containing rare earth values when the values which are contained together in a molten chloride salt electrolyte. A molten chloride salt electrolyte with a first ratio of plutonium chloride to uranium chloride is contacted with both a solid cathode and an anode having values of uranium and fission products including plutonium. A voltage is applied across the anode and cathode electrolytically to transfer uranium and plutonium from the anode to the electrolyte while uranium values in the electrolyte electrolytically deposit as uranium metal on the solid cathode in an amount equal to the uranium and plutonium transferred from the anode causing the electrolyte to have a second ratio of plutonium chloride to uranium chloride. Then the solid cathode with the uranium metal deposited thereon is removed and molten cadmium having uranium dissolved therein is brought into contact with the electrolyte resulting in chemical transfer of plutonium values from the electrolyte to the molten cadmium and transfer of uranium values from the molten cadmium to the electrolyte until the first ratio of plutonium chloride to uranium chloride is re-established.
Date:
January 1, 1991
Creator:
Ackerman, J.P.
System:
The UNT Digital Library