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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
Intense transient magnetic-field generation by laser plasma
In a laser system, the return current of a laser generated plasma is conducted near a target to subject that target to the magnetic field thereof. In alternate embodiments the target may be either a small non-fusion object for testing under the magnetic field or a laser-fusion pellet. In the laser-fusion embodiment, the laser-fusion pellet is irradiated during the return current flow and the intense transient magnetic field is used to control the hot electrons thereof to hinder them from striking and heating the core of the irradiated laser-fusion pellet.
Date:
August 18, 1981
Creator:
Benjamin, R.F.
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
Microscope and method of use
A method and apparatus for electronically focusing and electronically scanning microscopic specimens are given. In the invention, visual images of even moving, living, opaque specimens can be acoustically obtained and viewed with virtually no time needed for processing (i.e., real time processing is used). And planar samples are not required. The specimens (if planar) need not be moved during scanning, although it will be desirable and possible to move or rotate nonplanar specimens (e.g., laser fusion targets) against the lens of the apparatus. No coupling fluid is needed, so specimens need not be wetted. A phase acoustic microscope is also made from the basic microscope components together with electronic mixers.
Date:
August 18, 1981
Creator:
Bongianni, W.L.
System:
The UNT Digital Library
Method of boronizing transition-metal surfaces
A method is presented for preparing a boride layer on a transition metal substrate for use in corrosive environments or as a harden surface in machine applications. This method is particularly useful in treating current collectors for use within a high temperature and corrosive electrochemical cell environment. A melt of a alkali metal boride tetrafluoride salt including such as KF to lower its melting point is prepared including a dissolved boron containing material, for instance NiB, MnB/sub 2/, or CrB/sub 2/. A transition metal to be coated is immersed in the melt at a temperature of no more than 700/sup 0/C and a surface boride layer of that transition metal is formed within a period of about 24 hours on the substrate surface.
Date:
August 28, 1981
Creator:
Koyama, K. & Shimotake, H.
System:
The UNT Digital Library
Improved photoelectrodialytic cell
A multicompartment photoelectrodialytic demineralization cell is provided with a buffer compartment interposed between the product compartment and a compartment containing an electrolyte solution. Semipermeable membranes separate the buffer compartment from the product and electrolyte compartments. The buffer compartment is flushed to prevent leakage of the electrolyte compartment from entering the product compartment.
Date:
August 14, 1981
Creator:
Murphy, G.W.
System:
The UNT Digital Library
Apparatus and method for pyrolyzing biomass material
A technique for pyrolyzing biomass materials is disclosed wherein a hot surface is provided having a predetermined temperature which is sufficient to pyrolyze only the surface strata of the biomass material without substantially heating the interior of the biomass material thereby providing a large temperature gradient from the surface strata inwardly of the relatively cool biomass materials. Relative motion and physical contact is produced between the surface strata and the hot surface for a sufficient period of time for ablative pyrolyzation by heat conduction to occur with minimum generation of char.
Date:
August 21, 1981
Creator:
Diebold, J. P. & Reed, T. B.
System:
The UNT Digital Library
Nitrogen fixation method and apparatus. [DOE patent application]
A method and apparatus for achieving nitrogen fixation includes a volumetric electric discharge chamber. The volumetric discharge chamber provides an even distribution of an electron beam, and enables the chamber to be maintained at a controlled energy to pressure (E/p) ratio. An E/p ratio of from 5 to 15 kV/atm of O/sub 2//cm promotes the formation of vibrationally excited N/sub 2/. Atomic oxygen interacts with vibrationally excited N/sub 2/ at a much quicker rate than unexcited N/sub 2/, greatly improving the rate at which NO is formed.
Date:
August 11, 1981
Creator:
Chen, H. L.
System:
The UNT Digital Library
Acoustical heat-pumping engine
The disclosure is directed to an acoustical heat pumping engine without moving seals. A tubular housing holds a compressible fluid capable of supporting an acoustical standing wave. An acoustical driver is disposed at one end of the housing and the other end is capped. A second thermodynamic medium is disposed in the housing near to but spaced from the capped end. Heat is pumped along the second thermodynamic medium toward the capped end as a consequence both of the pressure oscillation due to the driver and imperfect thermal contact between the fluid and the second thermodynamic medium.
Date:
August 14, 1981
Creator:
Wheatley, John C.; Swift, Gregory W. & Migliori, Albert
System:
The UNT Digital Library
Oil-shale-retorting and combustion system. [DOE patent application]
The present invention is directed to the extraction of energy values from oil shale containing considerable concentrations of calcium carbonate in an efficient manner. The volatiles are separated from the oil shale in a retorting zone of a fluidized bed where the temperature and the concentration of oxygen are maintained at sufficiently low levels so that the volatiles are extracted from the oil shale with minimal combustion of the volatiles and with minimal calcination of the calcium carbonate. These gaseous volatiles and the calcium carbonate flow from the retorting zone into a freeboard combustion zone where the volatiles are burned in the presence of excess air. In this zone the calcination of the calcium carbonate occurs but at the expense of less Btu's than would be required by the calcination reaction in the event both the retorting and combustion steps took place simultaneously. The heat values in the products of combustion are satisfactorily recovered in a suitable heat exchange system.
Date:
August 28, 1981
Creator:
Pitrolo, Augustine A.; Mei, Joseph S. & Shang, Jerry Y.
System:
The UNT Digital Library
Nuclear reactor control apparatus
Nuclear reactor core safety rod release apparatus comprises a control rod having a detent notch in the form of an annular peripheral recess at its upper end, a control rod support tube for raising and lowering the control rod under normal conditions, latches pivotally mounted on the control support tube with free ends thereof normally disposed in the recess in the control rod, and cam means for pivoting the latches out of the recess in the control rod when a scram condition occurs. One embodiment of the invention comprises an additonal magnetically-operated latch for releasing the control rod under two different conditions, one involving seismic shock.
Date:
August 28, 1981
Creator:
Sridhar, B.N.
System:
The UNT Digital Library
Radioactive-materials shipping-cask anticontamination enclosure
An anticontamination device for use in storing shipping casks for radioactive materials comprises (1) a seal plate assembly; (2) a double-layer plastic bag; and (3) a water management system or means for water management.
Date:
August 18, 1981
Creator:
Belmonte, M.S.; Davis, J.H. & Williams, D.A.
System:
The UNT Digital Library
Method and apparatus for producing cryogenic targets
An improved method and apparatus are given for producing cryogenic inertially driven fusion targets in the fast isothermal freezing (FIF) method. Improved coupling efficiency and greater availability of volume near the target for diagnostic purposes and for fusion driver beam propagation result. Other embodiments include a new electrical switch and a new explosive detonator, all embodiments making use of a purposeful heating by means of optical fibers.
Date:
August 28, 1981
Creator:
Murphy, James T. & Miller, John R.
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
Improved Process and Apparatus for Energy Storage and Release
Patent relating to an improved process and apparatus for energy storage and release.
Date:
May 14, 2004
Creator:
Imholt, Timothy; Allara, David L., 1937-; Gnade, Bruce & Roberts, James A.
System:
The UNT Digital Library
Method of making multilayered titanium ceramic composites
A method making a titanium ceramic composite involves forming a hot pressed powder body having a microstructure comprising at least one titanium metal or alloy layer and at least one ceramic particulate reinforced titanium metal or alloy layer and hot forging the hot pressed body follwed by hot rolling to substantially reduce a thickness dimension and substantially increase a lateral dimension thereof to form a composite plate or sheet that retains in the microstructure at least one titanium based layer and at least one ceramic reinforced titanium based layer in the thickness direction of the composite plate or sheet.
Date:
August 25, 1998
Creator:
Fisher, George T., II; Hansen; Jeffrey, S.; Oden; Laurance, L.; Turner et al.
System:
The UNT Digital Library
Saw-Filing Machine
Patent for a Saw-Filing Machine. "This invention relates to saw-filing machines; and the object of the invention is to provide a simple and effective device of this character which is adapted to sharpen with accuracy and rapidity the teeth of different kinds of saws." (lines 8-13) including illustrations.
Date:
August 25, 1903
Creator:
Smith, John D.
System:
The Portal to Texas History
Can-Opener
Patent for a new and improved can opener. This design "consists of can-opener comprising a blade or cutter vertically adjustable to allow it to be forced into a can-head to be cut" (lines 34-36).
Date:
August 9, 1898
Creator:
Connett, Matthew F.
System:
The Portal to Texas History
Bed-Slat Fastener.
Patent for a new and useful bed slat fastener, including instructions and illustrations.
Date:
August 16, 1898
Creator:
Sonntag, Edwin C.
System:
The Portal to Texas History
Attachment for Cultivator-Beams
Patent for an attachment for cultivator beams designed to help adjust cultivators while in usage. Illustrations included.
Date:
August 27, 1907
Creator:
Barham, William H.
System:
The Portal to Texas History
Cord-Tying Device.
Patent for certain new and useful improvements in cord tying devices, including instructions and illustrations.
Date:
August 1, 1899
Creator:
Postley, Charles A.
System:
The Portal to Texas History
Acetylene-Gas Generator.
Patent for certain new and useful improvements in acetylene gas machines, including instructions and illustrations.
Date:
August 1, 1899
Creator:
Henderson, Thomas & Stapp, William A.
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
Baling-Press
Patent for improvements in the specifics of the design and construction of a baling press.
Date:
August 20, 1901
Creator:
Chapman, Robert E.
System:
The Portal to Texas History