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585 Matching Results
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Glass-heat-pipe evacuated-tube solar collector
A glass heat pipe is adapted for use as a solar energy absorber in an evacuated tube solar collector and for transferring the absorbed solar energy to a working fluid medium or heat sink for storage or practical use. A capillary wick is formed of granular glass particles fused together by heat on the inside surface of the heat pipe with a water glass binder solution to enhance capillary drive distribution of the thermal transfer fluid in the heat pipe throughout the entire inside surface of the evaporator portion of the heat pipe. Selective coatings are used on the heat pipe surface to maximize solar absorption and minimize energy radiation, and the glass wick can alternatively be fabricated with granular particles of black glass or obsidian.
Date:
August 6, 1981
Creator:
McConnell, R.D. & VanSant, J.H.
System:
The UNT Digital Library
Dust-Feed Mechanism
The invention is a dust feed device for delivery of a uniform supply of dust for long periods of time to an aerosolizing means for production of a dust suspension. The device utilizes at least two tandem containers having spiral brushes within the containers which transport the dust from a supply to the aerosolizer means.
Date:
April 6, 1981
Creator:
Milliman, Edward M.
System:
The UNT Digital Library
Ductile nickel-silicon alloy
An improvement over prior compositions wherein the ductility of Ni-Si alloys are improved with minor alloying additions of hafnium or zirconium.
Date:
August 6, 1990
Creator:
Oliver, W. C.
System:
The UNT Digital Library
Solar coal-gasification reactor with pyrolysis-gas recycle. [Patent application]
Coal (or other carbonaceous matter, such as biomass) is converted into a product gas that is substantially free from hydrocarbons. The coal is fed into a solar reactor, and solar energy is directed into the reactor onto coal char, creating a gasification front and a pyrolysis front. A gasification zone is produced well above the coal level within the reactor. A pyrolysis zone is produced immediately above the coal level. Steam, injected into the reactor adjacent to the gasification zone, reacts with char to generate product gases. Solar energy supplies the energy for the endothermic steam-char reaction. The hot product gases flow from the gasification zone to the pyrolysis zone to generate hot char. Gases are withdrawn from the pyrolysis zone and reinjected into the region of the reactor adjacent the gasification zone. This eliminates hydrocarbons in the gas by steam reformation on the hot char. The product gas is withdrawn from a region of the reactor between the gasification zone and the pyrolysis zone. The product gas will be free of tar and other hydrocarbons, and thus be suitable for use in many processes.
Date:
April 6, 1981
Creator:
Aiman, W.R. & Gregg, D.W.
System:
The UNT Digital Library
Neutron and gamma radiation shielding material, structure, and process of making structure
The present invention is directed to a novel neutron and gamma radiation shielding material consisting of 95 to 97% by weight SiO/sub 2/ and 5 to 3% by weight sodium silicate. In addition, the method of using this composition to provide a continuous neutron and gamma radiation shielding structure is disclosed.
Date:
July 6, 1981
Creator:
Hondorp, H.L.
System:
The UNT Digital Library
Radioactive hot-cell access-hole decontamination machine
A radioactive hot cell access hole decontamination machine is disclosed. A mobile housing has an opening large enough to encircle the access hole and has a shielding door, with a door opening and closing mechanism, for uncovering and covering the opening. The housing contains a shaft which has an apparatus for rotating the shaft and a device for independently translating the shaft from the housing through the opening and access hole into the hot cell chamber. A properly sized cylindrical pig containing wire brushes and cloth or other disks, with an arrangement for releasably attaching it to the end of the shaft, circumferentially cleans the access hole wall of radioactive contamination and thereafter detaches from the shaft to fall into the hot cell chamber.
Date:
April 6, 1981
Creator:
unknown
System:
The UNT Digital Library
Coolant monitoring apparatus for nuclear reactors. [PWR; BWR]
A system for monitoring coolant conditions within a pressurized vessel is described. A length of tubing extends outward from the vessel from an open end containing a first line restriction at the location to be monitored. The flowing fluid is cooled and condensed before passing through a second line restriction. Measurement of pressure drop at the second line restriction gives an indication of fluid condition at the first line restriction. Multiple lengths of tubing with open ends at incremental elevations can measure coolant level within the vessel.
Date:
August 6, 1981
Creator:
Tokarz, R.D.
System:
The UNT Digital Library
Attachment For Surveying Instruments
Patent for attachment for surveying instruments. Illustrations included.
Date:
September 6, 1904
Creator:
Armstrong, Edward R.
System:
The Portal to Texas History
Coin Operating Vending Machine
Patent for a coin operated vending machine. Illustration included.
Date:
December 6, 1904
Creator:
Davis, Alvah B.
System:
The Portal to Texas History
Bottle
Patent for a bottle. Illustrations included.
Date:
April 6, 1909
Creator:
Sanders, Richard L.
System:
The Portal to Texas History
Coin Controlled Machine
Patent for a coin controlled machine. This invention is designed to accept coins of proper values and operation is dependent on predetermined portion of the im pressed surface of the coin. Illustrations included.
Date:
September 6, 1910
Creator:
Scheble, Eugene S. & Rast, Felix Q.
System:
The Portal to Texas History
Churning Machine
Patent for a churning machine that pumps liquids. It is designed to reduce materials used in this labor. This machine will also improve the quality of the labor and decrease the cost of this labor.
Date:
December 6, 1905
Creator:
Van Dusen, Henry L
System:
The Portal to Texas History
Automatic Cotton Elevator and Distributer.
Patent for certain new and useful improvements in automatic cotton elevators and distributes, including instructions and illustrations.
Date:
August 6, 1898
Creator:
Wheeler, Houston J
System:
The Portal to Texas History
Car-Coupling
Patent for a car coupling that separately joins two train cars together. illustrations included.
Date:
July 6, 1909
Creator:
Dobbs, Charles
System:
The Portal to Texas History
Aeroplane
Patent for an aeroplane which has its equilibrium maintained by the operator through levers that bring the plane up or down.
Date:
December 6, 1910
Creator:
McManus, Augustus F. W.
System:
The Portal to Texas History
Bale-Band Buckle
Patent for a bale band buckle. Illustrations included.
Date:
June 6, 1911
Creator:
Brigance, Alice O.
System:
The Portal to Texas History
Automatic Relief Valve for Pneumatic Seed Cotton Distributers.
Patent for a valve that attaches to a flue upon a pneumatic-seed cotton distributor. Includes illustrations.
Date:
January 6, 1903
Creator:
Wade, George W.
System:
The Portal to Texas History
Combination Plow And Stalk-Chopper.
Patent for certain new and useful improvements in a combination plow and stalk chopper, including instructions and illustrations.
Date:
December 6, 1898
Creator:
Williams, Wood
System:
The Portal to Texas History
Coat Rack
Patent for a coat rack. Illustration included.
Date:
November 6, 1906
Creator:
Gragg, Joe Lee
System:
The Portal to Texas History
Bale-Tie Buckle
Patent for a bale-tie buckle.
Date:
November 6, 1911
Creator:
Armstrong, James E.
System:
The Portal to Texas History
Compound Tool.
Patent for a compound tool that is related to pliers.
Date:
December 6, 1910
Creator:
Modrall, Don A.
System:
The Portal to Texas History
Cotton-Chopper.
Patent for a new and useful improvement in cotton choppers, including instructions and illustrations.
Date:
February 6, 1900
Creator:
Bartels, Henry
System:
The Portal to Texas History
Beverage Cooler And Dispensing Apparatus.
Patent for certain new and useful improvements i beverage coolers and dispensing apparatus, including instructions and illustrations.
Date:
February 6, 1900
Creator:
Sidoti, Antonio
System:
The Portal to Texas History
Car Door
Patent for a car-door. The design is to prevent rattling and reduce wear on rail car doors. Illustration included.
Date:
September 6, 1910
Creator:
Lott, Andrew Gains & Handley, John A., Jr.
System:
The Portal to Texas History