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System for producing a uniform rubble bed for in-situ processes
A method and a cutter are disclosed for producing a large cavity filled with a uniform bed of rubblized oil shale or other material, for in-situ processing. A raise drill head has a hollow body with a generally circular base and sloping upper surface. A hollow shaft extends from the hollow body. Cutter teeth are mounted on the upper surface of the body and relatively small holes are formed in the body between the cutter teeth. Relatively large peripheral flutes around the body allow material to drop below the drill head. A pilot hole is drilled into the oil shale deposit. The pilot hole is reamed into a large diameter hole by means of a large diameter raise drill head or cutter to produce a cavity filled with rubble. A flushing fluid, such as air, is circulated through the pilot hole during the reaming operation to remove fines through the raise drill, thereby removing sufficient material to create sufficient void space, and allowing the larger particles to fill the cavity and provide a uniform bed of rubblized oil shale.
Date:
April 10, 1981
Creator:
Galloway, Terry R.
System:
The UNT Digital Library
Americium purification by a combined anion exchange and bidentate organophosphorus solvent extraction process. [Patent application]
Americium is separated from mixtures containing plutonium, other actinides, and other non-lanthamide impurities, by a combined process of anion exchange resin sorption to remove plutonium, and a bidentate organophosphorus solvent extraction of americium of the anion exchange resin effluent. Dihexyl-N,N-diethylcarbamylmethylenephosphonate is a preferred solvent. The initial mixture may be subjected to a cation exchange operation to remove monovalent impurities. The process is especially effective when aluminum, zinc, lead, and copper are present in significant quantities in the original mixture.
Date:
April 10, 1981
Creator:
Navratil, J.D. & Martella, L.L.
System:
The UNT Digital Library
Thermal Control System and Method for a Passive Solar Storage Wall
A system and method are provided for controlling the storing and release of thermal energy from a thermal storage wall wherein said wall is capable of storing thermal energy from insolation. The system and method includes a device such as a plurality of louvers spaced a predetermined distance from the thermal wall for regulating the release of thermal energy from the thermal wall. This regulating device is made from a material which is substantially transparent to the incoming solar radiation so that when it is in any operative position, the thermal storage wall substantially receives all of the impacting solar radiation. The material in the regulating device is further capable of being substantially opaque to thermal energy so that when the device is substantially closed, thermal release of energy from the storage wall is substantially minimized. An adjustment device is interconnected with the regulating mechanism for selectively opening and closing it in order to regulate the release of thermal energy from the wall.
Date:
July 10, 1981
Creator:
Ortega, Joseph Kenneth Earl
System:
The UNT Digital Library
Method for removal of mercury from various gas streams
The invention provides for a method for removing elemental mercury from a fluid, the method comprising irradiating the mercury with light having a wavelength of approximately 254 nm. The method is implemented in situ at various fuel combustion locations such as power plants and municipal incinerators.
Date:
June 10, 2003
Creator:
Granite, E. J. & Pennline, H. W.
System:
The UNT Digital Library
Antifriction-Bearing.
Patent for certain new and useful improvements in antifriction bearings for " the ends of the hub and means for eluding dust fro the bearings" (line 11 -13).
Date:
May 10, 1898
Creator:
Hobron, Charles B.
System:
The Portal to Texas History
Cotton-Chopper.
Patent for a cotton chopper, which has a rotary blade for cutting cotton and blades which can be raised to different levels for different depths of soil.
Date:
March 10, 1908
Creator:
Williams, John Scott
System:
The Portal to Texas History
Automatic Vehicle - Brake.
Patent for a new and improved automatic vehicle brake.
Date:
May 10, 1898
Creator:
Elliott, Joseph Samuel
System:
The Portal to Texas History
Churn.
Patent for an improvement in churns that prevent splashing and extraneous matter from entering the interior, including illustrations.
Date:
September 10, 1901
Creator:
Mills, John David
System:
The Portal to Texas History
Burner for Crude Oil.
Patent for "a burner for crude oil, and particularly to a construction by means which a direct or indirect draft may be utilized in the burning of the oil." (lines 11-14) and illustrations.
Date:
June 10, 1902
Creator:
Lewis, Thomas E.; Ray, Albert J. & Wesson, Miley B.
System:
The Portal to Texas History
Device for Slitting Sweet Corn.
Patent for a corn slitting device for cutting the corn kernels away from the husks on the cob.
Date:
March 10, 1908
Creator:
Bahn, Gustavus A.
System:
The Portal to Texas History
Bridle-Rod for Railroad Rails
Patent for a system of attaching railroad rails when the rails are first placed. This device is used to keep the rails a precise distance apart before the railroad spikes are placed into the ground holding the rails firmly in place.
Date:
February 10, 1903
Creator:
Johnson, John
System:
The Portal to Texas History
Cover.
Patent for a dust cover for mattresses and pillows, which is smooth when in place and is washable.
Date:
March 10, 1908
Creator:
Forwood, David F.
System:
The Portal to Texas History
Desk
Patent for a desk. Illustrations included.
Date:
March 10, 1908
Creator:
Thompson, Thomas Henry
System:
The Portal to Texas History
Dental Occlusornce
Patent for a dental tool that is used after all of a patients teeth are removed. This devise will restore the patients bite when the jaw is in the closed position.
Date:
June 10, 1901
Creator:
Stocks, Clarence
System:
The Portal to Texas History
Cotton Chopper and Cultivator
Patent for a cotton chopper and cultivator. Illustrations included.
Date:
December 10, 1907
Creator:
Higgs, William A. & Hamilton, Morgan S.
System:
The Portal to Texas History
Buggy Top Support
Patent for a buggy top support. Illustration included.
Date:
January 10, 1905
Creator:
Mason, Everett H.
System:
The Portal to Texas History
Automatic Bench Clamp And Dog.
Patent for a new and useful automatic bench clamp and dog.
Date:
May 10, 1898
Creator:
Rogers, James P.
System:
The Portal to Texas History
Cutter Head and Bit
Patent for a cutter head and bit. This invention are a combination of parts for use in woodworking. Illustration included.
Date:
August 10, 1909
Creator:
Birdwell, Robert P. & Ingram, William D.
System:
The Portal to Texas History
Carbureter
Patent for a manually operated carburetor used on vehicle gas engines. Illustrations included.
Date:
December 10, 1907
Creator:
Stoker, Albert E.
System:
The Portal to Texas History
Crank-Rod Bearing
Patent for a crank rod bearing designed to account for wear damage. Illustrations included.
Date:
December 10, 1912
Creator:
Stauffer, Floyd F.
System:
The Portal to Texas History
Amusement Apparatus
Patent for a fishing game for amusement parks which has a canal of liquid agitated to form a current with pictures of fish in it that when caught get the person fishing different prizes depending on the symbol they have on them.
Date:
August 10, 1909
Creator:
Pressey, Charles A.
System:
The Portal to Texas History
Core Lifter For Diamond Drills
Patent for a core lifter for diamond drills. Illustration included.
Date:
January 10, 1905
Creator:
Dupuis, David & Carpenter, D. A.
System:
The Portal to Texas History
Check Book.
Patent for an improvement to check books and covers.
Date:
April 10, 1900
Creator:
Exline, Marcus P.
System:
The Portal to Texas History
Card-Cutting Attachment for Printing Presses.Speight,
Patent for a device that can be attached to a printing press, for the express purpose of being able to cut multiple copies of cards from a single sheet of card stock with metal dies.
Date:
December 10, 1901
Creator:
Speight, Winchester Franklin,
System:
The Portal to Texas History