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Method for fabricating a seal between a ceramic and a metal alloy
A method of fabricating a seal between a ceramic and an alloy comprising the steps of prefiring the alloy in an atmosphere with a very low partial pressure of oxygen, firing the assembled alloy and ceramic in air, and gradually cooling the fired assembly to avoid the formation of thermal stress in the ceramic. The method forms a bond between the alloy and the ceramic capable of withstanding the environment of a pressurized water reactor and suitable for use in an electrical conductivity sensitive liquid level transducer.
Date:
July 24, 1981
Creator:
Kelsey, P.V. Jr. & Siegel, W.T.
System:
The UNT Digital Library
Neutron-detection apparatus
An atomic fission counting apparatus used for neutron detection is provided with spirally curved electrode plates uniformly spaced apart in a circular array and coated with fissile material.
Date:
April 24, 1981
Creator:
Kopp, M.K. & Valentine, K.H.
System:
The UNT Digital Library
Method for producing nuclear fuel
Nuclear fuel is made by contacting an aqueous solution containing an actinide salt with an aqueous solution containing ammonium hydroxide, ammonium oxalate, or oxalic acid in an amount that will react with a fraction of the actinide salt to form a precipitate consisting of the hydroxide or oxalate of the actinide. A slurry consisting of the precipitate and solution containing the unreacted actinide salt is formed into drops which are gelled, calcined, and pressed to form pellets.
Date:
April 24, 1981
Creator:
Haas, P.A.
System:
The UNT Digital Library
Separator assembly for use in spent-nuclear-fuel shipping cask. [Patent application]
A separator assembly for use in a spent-nuclear-fuel shipping cask has a honeycomb-type wall structure defining parallel cavities for holding nuclear fuel assemblies. Tubes formed of an effective neutron-absorbing material are embedded in the wall structure around each of the cavities and provide neutron flux traps when filled with water.
Date:
April 24, 1981
Creator:
Bucholz, J.A.
System:
The UNT Digital Library
Power recovery system for coal-liquefaction process. [Patent application]
Method and apparatus for minimizing energy required to inject reactant such as coal-oil slurry into a reaction vessel, using high pressure effluent from the latter to displace the reactant from a containment vessel into the reaction vessel with assistance of low pressure pump. Effluent is degassed in the containment vessel, and a heel of the degassed effluent is maintained between incoming effluent and reactant in the containment vessel.
Date:
April 24, 1981
Creator:
Horton, J. R.
System:
The UNT Digital Library
Coal gasification apparatus. [Patent application]
Coal hydrogenation vessel has hydrogen heating passages extending vertically through its wall and opening into its interior.
Date:
April 24, 1981
Creator:
Nagy, C.K.
System:
The UNT Digital Library
Transistorized power switch and base drive circuit therefore
A high power switching circuit is disclosed which utilizes a four-terminal Darlington transistor block to improve switching speed, particularly in rapid turn-off. Two independent reverse drive currents are utilized during turn-off in order to expel the minority carriers of the Darlington pair at their own charge sweep-out rate. The reverse drive current may be provided by a current transformer, the secondary of which is tapped to the base terminal of the power stage of the Darlington block. In one application, the switching circuit is used in each power switching element in a chopper-inverter drive of an electric vehicle propulsion system.
Date:
March 24, 1981
Creator:
Lee, F.C. & Carter, R.A.
System:
The UNT Digital Library
Improved method of preparing composite superconducting wire
An improved method of preparing composite multifilament superconducting wire of Nb/sub 3/Sn in a copper matrix which eliminates the necessity of coating the drawn wire with tin is described. A generalized cylindrical billet of an alloy of copper containing at least 15 weight percent niobium, present in the copper as discrete, randomly distributed and oriented dendritic-shaped particles, is provided with at least one longitudinal opening which is filled with tin to form a composite drawing rod. The drawing rod is then drawn to form a ductile composite multifilament wire containing a filament of tin. The ductile wire containing the tin can then be wound into magnet coils or other devices before heating to diffuse the tin through the wire to react with the niobium forming Nb/sub 3/Sn. Also described is an improved method for making large billets of the copper-niobium alloy by consumable-arc casting.
Date:
April 24, 1981
Creator:
Verhoeven, J. D.; Gibson, E. D.; Finnemore, D. K.; Ostenson, J. E.; Schmidt, F. A. & Owen, C. V.
System:
The UNT Digital Library
Carrier-Frame for Baskets.
Patent for a carrier frame for moving baskets up and down in a store, which does not get tangled with the basket ropes.
Date:
December 24, 1907
Creator:
Cameron. James H.
System:
The Portal to Texas History
Cotton-Chopper.
Patent for a cotton chopper, which cuts the stalks with a sliding cut and has multiple blades that are adjustable.
Date:
March 24, 1908
Creator:
Henry, Reeves
System:
The Portal to Texas History
Clothes-Pin
Patent for a clothes pin. Illustrations included.
Date:
December 24, 1907
Creator:
Cooke, Jasper Newton & Moeller, John Charles
System:
The Portal to Texas History
Nut-Lock.
Patent for new qualities of nut-lock security, efficiency, and convenience, including illustrations.
Date:
April 24, 1906
Creator:
Payne, Lewis.
System:
The Portal to Texas History
Apparatus for Burning Fuel-Oil
Patent for an oil burner for stoves and furnaces. Illustrations included.
Date:
September 24, 1912
Creator:
Kunkel, Albert R.
System:
The Portal to Texas History
Changeable Exhibitor.
Patent for a changeable exhibitor, which has horizontally and vertically moving rollers for displaying items.
Date:
August 24, 1909
Creator:
Williams, Winfield B.
System:
The Portal to Texas History
Combined Compositor's Stick and Type Chase
Patent for combined compositor's stick and type chase. Illustration included.
Date:
November 24, 1903
Creator:
Weeks, Frank W.
System:
The Portal to Texas History
Crude-Oil Burner.
Patent for "a crude-oil burner especially adapted for use in cooking and heating stoves and in fireplaces;" including illustrations.
Date:
June 24, 1902
Creator:
Landis, John A.; Johnston, William A. & Bosley, Lee Wooden
System:
The Portal to Texas History
Cooling Device
Patent for a refrigerator for dairy products. Illustrations included.
Date:
October 24, 1911
Creator:
Burkhalter, Milo W.
System:
The Portal to Texas History
Cotton-Chopper Attachment for Cultivators
Patent for a chopping device that can be attached to an existing cultivator, allowing for the use of the cultivator to become a more versatile farm vehicle.
Date:
December 24, 1901
Creator:
Vickers, John J.
System:
The Portal to Texas History
Cartridge for Guns.
Patent for "a projectile having an elliptical cross-section and slight longitadinal twist for use in guns provided with a corresponding bore." (lines 8-11), including description and illustrations.
Date:
September 24, 1901
Creator:
Cole, William F.
System:
The Portal to Texas History
Combination-Heather.
Patent for combination-heater in which it can be submerged directly in a body of water contained in any open-top vessel, such as a bath-hub, bucket or other receptacle for the purpose of raising the temperature of the water to a desired degree. (Lines 12-16) Illustration is included.
Date:
March 24, 1903
Creator:
Mansfield, Charles Augustus & Hayes, George Daniel
System:
The Portal to Texas History
Convertible Neck Yoke and Swingletree
Patent for a convertible neck yoke and swingletree. Illustration included.
Date:
May 24, 1904
Creator:
Hall, Thomas I.
System:
The Portal to Texas History
Boiler Feeder
Patent for a boiler feeder. This invention is intended to be placed above the boiler and via a regulator supplies water to the boiler.
Date:
November 24, 1903
Creator:
Herrington, William
System:
The Portal to Texas History
Harvester Attachment.
Patent for an attachment that cleans and scrapes the drive wheels of mowing machines and harvesters, to keep them free of accumulated mud and running smoothly.
Date:
December 24, 1901
Creator:
Marshall, John Henry.
System:
The Portal to Texas History
Aerodrome
Patent for an aerodrome which is a heavier than air flying machine powered by motorized propellers
Date:
August 24, 1909
Creator:
Sinclair, William
System:
The Portal to Texas History