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Graphene Magnetic Tunnel Junction Spin Filters and Methods of Making (open access)

Graphene Magnetic Tunnel Junction Spin Filters and Methods of Making

Patent relating to methods of forming a few molecule thick graphene layer on a ferromagnetic layer, at temperatures and conditions consistent with integration with silicon-based complementary metal oxide semiconductors (Si CMOS).
Date: May 25, 2012
Creator: Kelber, Jeffry A. & Zhou, Mi
System: The UNT Digital Library
Hydride compositions (open access)

Hydride compositions

Disclosed are a composition for use in storing hydrogen and a method for making the composition. The composition comprises a mixture of two or more hydrides, each hydride having a different series of hydrogen sorption isotherms that contribute to the overall isotherms of the mixture. The hydrides are chosen so that the isotherms of the mixture have regions wherein the H equilibrium pressure increases with increasing hydrogen, preferably linearly. The isotherms of the mixture can be adjusted by selecting hydrides with different isotherms and by varying the amounts of the individual hydrides, or both. Preferably, the mixture is made up of hydrides that have isotherms with substantially flat plateaus and in nearly equimolar amounts. The composition is activated by degassing, exposing to H, and then heating below the softening temperature of any of the constituents. When the composition is used to store hydrogen, its hydrogen content can be found simply by measuring P{sub H}{sub 2} and determining H/M from the isothermic function of the composition.
Date: February 7, 1994
Creator: Lee, Myung W.
System: The UNT Digital Library
Actinide halide complexes (open access)

Actinide halide complexes

A compound of the formula MX{sub n}L{sub m} wherein M = Th, Pu, Np,or Am thorium, X = a halide atom, n = 3 or 4, L is a coordinating ligand selected from the group consisting of aprotic Lewis bases having an oxygen-, nitrogen-, sulfur-, or phosphorus-donor, and m is 3 or 4 for monodentate ligands or is 2 for bidentate ligands, where n + m = 7 or 8 for monodentate ligands or 5 or 6 for bidentate ligands, a compound of the formula MX{sub n} wherein M, X, and n are as previously defined, and a process of preparing such actinide metal compounds including admixing the actinide metal in an aprotic Lewis base as a coordinating solvent in the presence of a halogen-containing oxidant, are provided.
Date: February 7, 1991
Creator: Avens, Larry R.; Zwick, Bill D.; Sattelberger, Alfred P.; Clark, David L. & Watkin, J. G.
System: The UNT Digital Library
Counterbalancing and Adjustable Sash for Windows. (open access)

Counterbalancing and Adjustable Sash for Windows.

Patent for window sashes made of two separate sections, one for the upper portion and the other for the lower portion of a window. Each sash section can be operated independently from the other by mechanisms on the right and left side of the window.
Date: February 7, 1922
Creator: Peaden, William H.
System: The Portal to Texas History
Direction Signal for Automobiles. (open access)

Direction Signal for Automobiles.

Patent for lit directional signal for automobiles that indicates driver's intention to stop or to turn left or right, including illustrations.
Date: February 7, 1922
Creator: Womack, Foster B.
System: The Portal to Texas History
Electric Water Heater (open access)

Electric Water Heater

Patent for improvements to electric water heaters adapted for heating small bodies of water. The interior walls of the cylinders in the heating unit are perforated so that water can freely circulate through and between them.
Date: February 7, 1922
Creator: Stephens, Richard M.
System: The Portal to Texas History
Fish-Catching Device (open access)

Fish-Catching Device

Patent for an improvement in fish-catching devices which provides a bait-holding device in a horizontal position and the ability to completely conceal the fish-catching device within the bait, including illustrations.
Date: February 7, 1922
Creator: Riza, George P.
System: The Portal to Texas History
Fuel Vaporizer for Carburetors. (open access)

Fuel Vaporizer for Carburetors.

Patent for "an improvement in fuel heaters or vaporizers for use with carburetors for hydrocarbon fuel engines" (lines 9-12). The device "can therefore utilize those hydrocarbons of specific gravity much higher than gasoline, as fuel for internal combustion engines, with safety and with more economy than has heretofore been deemed possible." (lines 106-111).
Date: February 7, 1922
Creator: Smith, Maurice O.
System: The Portal to Texas History
Manufacture of Aluminum Chloride. (open access)

Manufacture of Aluminum Chloride.

Patent for improvements of manufacture of aluminum chloride, comprising "a method of utilizing certain oily residues which are the result of treatment of oils with aluminum chloride or with substances capable of forming aluminum chloride" (lines 11-14), including illustrations.
Date: February 7, 1922
Creator: McAfee, Almer M.
System: The Portal to Texas History
Monolithic Wall. (open access)

Monolithic Wall.

Patent for concrete wall construction which is light in weight and inexpensive to fabricate. Frames may be previously constructed in a manner to allow for windows and other common wall features.
Date: February 7, 1922
Creator: Graham, Malcolm J
System: The Portal to Texas History
Stalk-Cutter Attachment. (open access)

Stalk-Cutter Attachment.

Patent for a planter attachment. It allows quick attachment of a stalk cutter that would let a planter serve two purposes.
Date: February 7, 1922
Creator: Haynes, Jack M.
System: The Portal to Texas History
Surface-Treating Machine (open access)

Surface-Treating Machine

Patent for useful improvements to surface-treating machines with a "rapidly moving surface treating member," (lines 12-13) including illustrations.
Date: February 7, 1920
Creator: Clarke, Alex A.
System: The Portal to Texas History
Cultivator. (open access)

Cultivator.

Patent for a cultivator that has an improved method of attaching a harrow to the cultivator.
Date: February 7, 1911
Creator: Kelly, Robert Marvin
System: The Portal to Texas History
Curtain-Pole (open access)

Curtain-Pole

Patent for a curtain pole. Illustrations included.
Date: February 7, 1911
Creator: Doyle, Edward S.
System: The Portal to Texas History
Fire-Extinguishing System. (open access)

Fire-Extinguishing System.

Patent for a fire extinguishing system with improved hydrant connections and sprinkler systems in buildings.
Date: February 7, 1911
Creator: Corneliussen, Ivar
System: The Portal to Texas History
Insect-Trap. (open access)

Insect-Trap.

Patent for an insect trap that attracts insects with a light.
Date: February 7, 1911
Creator: Wood, Robert N.
System: The Portal to Texas History
Oxygen-Generator (open access)

Oxygen-Generator

Patent for an oxygen generator that refills as it is emptied.
Date: February 7, 1911
Creator: Bradley, Richard Clinton
System: The Portal to Texas History
Post-Hole Auger. (open access)

Post-Hole Auger.

Patent for a post hole auger that is easy to operate.
Date: February 7, 1911
Creator: Mahon, John G. & Olschner, Clarence E.
System: The Portal to Texas History
Railway-Switch. (open access)

Railway-Switch.

Patent for a railway switch that is triggered by a shoe on a train car.
Date: February 7, 1911
Creator: Rousseau, Lawrence C.
System: The Portal to Texas History
Rotary Engine (open access)

Rotary Engine

Patent for a rotary engine with a better flow of fluid to the casing.
Date: February 7, 1911
Creator: Nichols, Franklin Priestley
System: The Portal to Texas History
Safety-Clamp. (open access)

Safety-Clamp.

Patent for a safety clamp that secures wagon seats in place.
Date: February 7, 1911
Creator: Gammon, William Willey
System: The Portal to Texas History
Sleeping-Car (open access)

Sleeping-Car

Patent for a railroad sleeping car with an improved mechanism for folding the seats into beds.
Date: February 7, 1911
Creator: Anson, Warren J.
System: The Portal to Texas History
Storage-Tank (open access)

Storage-Tank

Patent for a food storage tank with ventilation. Illustrations included.
Date: February 7, 1911
Creator: Harry, Owen K.
System: The Portal to Texas History
Sweep Attachment. (open access)

Sweep Attachment.

Patent for a sweep attachment that connects to a cultivator for plowing cotton.
Date: February 7, 1911
Creator: Lundell, John C.
System: The Portal to Texas History