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Method of forming metallic coatings on polymeric substrates and of forming graded polymeric coatings or films
The invention described herein relates to methods of forming graded polymeric coatings or films on a desired substrate and of forming metallic coatings on polymeric or other nonmetallic substrates. In particular, it relates to methods of forming such coatings or films by sorption and/or diffusion of metals into coatings or films of polymeric material deposited by conventional techniques on a desired substrate.
Date:
March 11, 1981
Creator:
Liepins, R.
System:
The UNT Digital Library
Steering system for a train of rail-less vehicles
A steering system for use with a multiple vehicle train is disclosed which permits tracking without rails of one vehicle after another. This system is particularly useful for moving conveyor systems into and out of curved paths of room and pillar underground mine installations. The steering system features an elongated steering bar pivotally connected to each of adjacent vehicles at end portions of the bar permitting angular orientation of each vehicle in respect to the steering bar and other vehicles. Each end portion of the steering bar is linked to the near pair of vehicle wheels through wheel yoke pivot arms about king pin type pivots. Movement of the steering bar about its pivotal connection provides proportional turning of the wheels to effect steering and tracking of one vehicle following another in both forward and reverse directions.
Date:
March 13, 1981
Creator:
Voight, Edward Theodore
System:
The UNT Digital Library
Hydrodesulfurization and hydrodenitrogenation catalysts obtained from coal mineral matter. [Patent application]
A hydrotreating catalyst is prepared from coal mineral matter obtained by low temperature ashing coals of relatively low bassanite content by the steps of: (a) depositing on the low temperature ash 0.25 to 3 grams of an iron or nickel salt in water per gram of ash and drying a resulting slurry; (b) crushing and sizing a resulting solid; and (c) heating the thus-sized solid powder in hydrogen.
Date:
March 26, 1981
Creator:
Hwai-der Liu, K. & Hamrin, C.E. Jr.
System:
The UNT Digital Library
Moment-free toroidal magnet background of the invention
A toroidal magnet is described for confining a high magnetic field for use in fusion reactor research and nuclear particle detection. The magnet includes a series of conductor elements arranged about and fixed at its small major radius portion to the outer surface of a central cylindrical support each conductor element having a geometry such as to maintain the conductor elements in pure tension when a high current flows therein, and a support assembly which redistributes all or part of the tension which would otherwise arise in the small major radius portion of each coil element to the large major radius portion thereof.
Date:
March 2, 1981
Creator:
unknown
System:
The UNT Digital Library
Continuous chain bit with downhole cycling capability
A continuous chain bit for hard rock drilling is disclosed which is capable of downhole cycling. A drill head assembly moves axially relative to a support body while the chain on the head assembly is held in position so that the bodily movement of the chain cycles the chain to present new composite links for drilling. A pair of spring fingers on opposite sides of the chain hold the chain against movement. The chain is held in tension by a spring-biased tensioning bar. A head at the working end of the chain supports the working links. The chain is centered by a reversing pawl and piston actuated by the pressure of the drilling mud. Detent pins lock the head assembly with respect to the support body and are also operated by the drilling mud pressure. A restricted nozzle with a divergent outlet sprays drilling mud into the cavity to remove debris. Indication of the centered position of the chain is provided by noting a low pressure reading indicating proper alignment of drilling mud slots on the links with the corresponding feed branches.
Date:
March 17, 1981
Creator:
Ritter, D. F.; St. Clair, J. A. & Togami, H. K.
System:
The UNT Digital Library
Receiver for solar-energy collector having improved aperture aspect
A secondary concentrator for use in receiver systems for linear focusing primary concentrators is provided with reflector wings at each end. The wings increase the capture of light rays reflected from areas adjacent the rim of a primary concentrator, increasing the apparent aperture size of the receiver as viewed from the rim of the primary concentrator. The length, tilt, and curvature of the wing reflectors can be adjusted to provide a receiver having a desired aperture aspect.
Date:
March 13, 1981
Creator:
McIntire, W.R.
System:
The UNT Digital Library
Minimally refined biomass fuel. [carbohydrate-water-alcohol mixture]
A minimally refined fluid composition, suitable as a fuel mixture and derived from biomass material, is comprised of one or more water-soluble carbohydrates such as sucrose, one or more alcohols having less than four carbons, and water. The carbohydrate provides the fuel source; water-solubilizes the carbohydrate; and the alcohol aids in the combustion of the carbohydrate and reduces the viscosity of the carbohydrate/water solution. Because less energy is required to obtain the carbohydrate from the raw biomass than alcohol, an overall energy savings is realized compared to fuels employing alcohol as the primary fuel.
Date:
March 26, 1981
Creator:
Pearson, R. K. & Hirschfeld, T. B.
System:
The UNT Digital Library
Coal gasification vessel. [Patent application]
A vessel system comprises an outer shell of carbon fibers held in a binder, a coolant circulation mechanism and control mechanism and an inner shell comprised of a refractory material and is of light weight and capable of withstanding the extreme temperature and pressure environment of, for example, a coal gasification process. The control mechanism can be computer controlled and can be used to monitor and modulate the coolant which is provided through the circulation mechanism for cooling and protecting the carbon fiber and outer shell. The control mechanism is also used to locate any isolated hot spots which may occur through the local disintegration of the inner refractory shell.
Date:
March 17, 1981
Creator:
Loo, Billy W.
System:
The UNT Digital Library
Electrochemical cell having cyclindircal electrode elements
A secondary, high temperature electrochemical cell especially adapted for lithium alloy negative electrodes, transition metal chalcogenide positive electrodes and alkali metal halide or alkaline earth metal halide electrolyte is disclosed. The cell is held within an elongated cylindrical container in which one of the active materials is filled around the outside surfaces of a pluraity of perforate tubular current collectors along the length of the container. Each of the current collector tubes contain a concentric atubular layer of electrically insulative ceramic as an interelectrode separator. The active material of opposite polarity in elongated pin shape is positioned longitudinally within the separator layer. A second electrically conductive tube with perforate walls can be swagged or otherwise bonded to the outer surface of the pin as a current cllector and the electrically insulative ceramic layer can be coated or otherwise layered onto the outer surface of this second current collector. Alternatively, the central pin electrode can include an axial core as a current collector.
Date:
March 5, 1981
Creator:
Nelson, P.A. & Shimotake, H.
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
Nuclear reactor fuel-assembly duct-tube-to-handling-socket attachment system. [LMFBR]
A reusable system is described for removably attaching the upper end of a nuclear reactor duct tube to the lower end of a nuclear reactor fuel assembly handling socket. A transition ring, fixed to the duct tube's upper end, has an interior-threaded section with a first locking hole segment. An adaptor ring, fixed to the handling socket's lower end has an outside-threaded section with a second locking hole segment. The inside and outside threaded sections match and can be joined so that the first and second locking hole segments can be aligned to form a locking hole. A locking ring, with a locking pin, slides over the adaptor ring so that the locking pin fits in the locking hole. A swage lock or a cantilever finger lock is formed from the locking cup collar to fit in a matching groove in the locking ring to prevent the locking ring's locking pin from backing out of the locking hole.
Date:
March 5, 1981
Creator:
unknown
System:
The UNT Digital Library
System for utilizing shale oil fines. [Patent application]
A system is provided for utilizing fines of carbonaceous materials such as particles or pieces of oil shale of about one-half inch or less diameter which are rejected for use in some conventional or prior surface retorting process, which obtains maximum utilization of the energy content of the fines and which produces a waste which is relatively inert and of a size to facilitate disposal. The system includes a cyclone retort which pyrolyzes the fines in the presence of heated gaseous combustion products, the cyclone retort having a first outlet through which vapors can exit that can be cooled to provide oil, and having a second outlet through which spent shale fines are removed. A burner connected to the spent shale outlet of the cyclone retort, burns the spent shale with air, to provide hot combustion products that are carried back to the cyclone retort to supply gaseous combustion products utilized therein. The burner heats the spent shale to a temperature which forms a molten slag, and the molten slag is removed from the burner into a quencher that suddenly cools the molten slag to form granules that are relatively inert and of a size that is convenient to handle …
Date:
March 13, 1981
Creator:
Harak, A. E.
System:
The UNT Digital Library
Cattle-Yoke.
Patent for a new and useful cattle yoke for preventing them from breaking, tearing down, jumping over, or crawling through the openings in fences (line 6 -8).
Date:
March 22, 1898
Creator:
Kirk, Robert S.
System:
The Portal to Texas History
Clock Attachment.
Patent for certain new and useful improvements in clock attachments.
Date:
March 8, 1898
Creator:
Schindler, Joseph
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
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
Bolt-Holder.
Patent for improvements in bolt-holders by “providing a combined bolt-holder and screw-driver…. in which the hook or engaging member is quickly and conveniently adjustable to any angle to allow the tool to be employed in various positions to engage bolts set.” (Lines 15-22) Illustration is included.
Date:
March 25, 1902
Creator:
Carter, Hiram C.
System:
The Portal to Texas History
Cotton-Chopper.
Patent for a cotton chopper with a solid hoe for thinning cotton and a toothed hoe for pulling weeds.
Date:
March 7, 1911
Creator:
Hart, Granville M.
System:
The Portal to Texas History
Cotton-Chopper.
Patent for a cotton chopper, which has a hoe on one side and a cultivator on the other.
Date:
March 15, 1910
Creator:
Dittrich, William
System:
The Portal to Texas History
Cotton-Chopper.
Patent for a cotton chopper, which can be more easily turned without damaging the cotton plants.
Date:
March 1, 1910
Creator:
Snow, Orto S.
System:
The Portal to Texas History
Apparatus for Molding Pipe
Patent for device that allows multiple sized pipes or pipe sections to be milded.
Date:
March 17, 1903
Creator:
Bergstrom, Otto
System:
The Portal to Texas History
Combined Tie-Plate and Rail Anticreeper
Patent for a railroad tie plate designed to remained locked to the base of the rail and to prevent dislocation of the base. Illustrations included.
Date:
March 29, 1910
Creator:
Clarke, Marcus S. & Adreon, Edward L., Jr.
System:
The Portal to Texas History
Binder.
Patent for improvements in binders in which it can “securely bind and retain a number of loose leaves, the structure of such binder enabling it to be readily attached to and removed from the packet of leaves.” (Lines 16-20) Illustration is included.
Date:
March 22, 1904
Creator:
Montgomery, Joseph
System:
The Portal to Texas History
Box-Car-Door Fastener
Patent for a box car door fastener.
Date:
March 19, 1912
Creator:
Hooton, Pinkie D.
System:
The Portal to Texas History