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Liquid Cooled Stirling Engine with a Segmented Rotary Displacer
Patent relating to a liquid cooled stirling engine with a segmented rotary displacer.
Date:
September 16, 2010
Creator:
Foster, Phillip R.
System:
The UNT Digital Library
Method for using Filed Emitter Arrays in Chemical and Biological Hazard Mitigation and Remediation
Patent relating to a method for using field emitter arrays in chemical and biological hazard mitigation and remediation.
Date:
January 18, 2002
Creator:
Gnade, Bruce & Wallace, Robert M.
System:
The UNT Digital Library
Toxic Agent Sensor and Detector Method, Apparatus, and System
Patent relating to a toxic agent sensor and detector method, apparatus, and system.
Date:
May 25, 2006
Creator:
Henley, Donald E.; Anand, Aman; Imholt, Timothy & Roberts, James A.
System:
The UNT Digital Library
One-piece, composite crucible with integral withdrawal/discharge section
A one-piece, composite open-bottom casting mold with integral withdrawal section is fabricated by thermal spraying of materials compatible with and used for the continuous casting of shaped products of reactive metals and alloys such as, for example, titanium and its alloys or for the gas atomization thereof.
Date:
July 30, 2002
Creator:
Besser, Matthew; Terpstra, Robert L. (Iowa State Univ., Ames, IA); Sordelet, Daniel J.; Anderson, Iver E.; Hartman, Alan D.; Argetsinger, Edward R. et al.
System:
The UNT Digital Library
Containment canister for capturing hazardous waste debris during piping modifications
The present invention relates to a containment canister for capturing hazardous waste debris during modifications to gloveboxes, or other radiological or biochemical hoods (generally termed gloveboxes therein), that require drilling and welding operations. Examples of such modifications include penetrations for pipe, thermowells, etc. In particular, the present invention relates to an improved containment canister that eliminates the need for costly containment huts and additional man power while at the same time reducing the risk of radiation exposure or other biohazard exposure to workers during glovebox modifications. The present invention also provides an improved hole saw which enables a driller to remove metal shavings and replace the hole saw if there is tooth wear present on the hole saw prior to actually penetrating a glovebox during modifications.
Date:
September 30, 2001
Creator:
Dozier, Stanley B.
System:
The UNT Digital Library
Method of Forming Diamonds from Carbonaceous Material
A method for producing diamonds is provided comprising exposing carbonaceous material to ion irradiation at ambient temperature and pressure.
Date:
November 30, 1999
Creator:
Daulton, Tyrone; Lewis, Roy; Rehn, Lynn & Kirk, Marquis
System:
The UNT Digital Library
Low Temperature Sorbents for removal of Sulfur Compounds from fluid feed Streams
A sorbent material is provided comprising a material reactive with sulfur, a binder unreactive with sulfur and an inert material, wherein the sorbent absorbs the sulfur at temperatures between 30 and 200 C. Sulfur absorption capacity as high as 22 weight percent has been observed with these materials.
Date:
September 30, 1999
Creator:
Siriwardane, Ranjan
System:
The UNT Digital Library
A Monolithic Interconnected module with a tunnel Junction for Enhanced Electrical and Optical Performance
An improved thermophotovoltaic (TPV) n/p/n device is provided. Monolithic Interconnected Modules (MIMs), semiconductor devices converting infrared radiation to electricity, have been developed with improved electrical and optical performance. The structure is an n-type emitter on a p-type base with an n-type lateral conduction layer. The incorporation of a tunnel junction and the reduction in the amount of p-type material used results in negligible parasitic absorption, decreased series resistance, increased voltage and increased active area. The novel use of a tunnel junction results in the potential for a TPV device with efficiency greater than 24%.
Date:
June 30, 1999
Creator:
Murray, Christopher Sean & Wilt, David Morgan
System:
The UNT Digital Library
Automated Detection and Location of Indications in Eddy Current Signals
A computer implemented information extraction process that locates and identifies eddy current signal features in digital point-ordered signals, said signals representing data from inspection of test materials, by enhancing the signal features relative to signal noise, detecting features of the signals, verifying the location of the signal features that can be known in advance, and outputting information about the identity and location of all detected signal features.
Date:
June 30, 1998
Creator:
Brudnoy, David M.; Oppenlander, Jane E. & Levy, Arthur J.
System:
The UNT Digital Library
Simulation of pyroshock environments using a tunable resonant fixture
Disclosed are a method and apparatus for simulating pyrotechnic shock for the purpose of qualifying electronic components for use in weapons, satellite, and aerospace applications. According to the invention, a single resonant bar fixture has an adjustable resonant frequency in order to exhibit a desired shock response spectrum upon mechanical impact. The invention eliminates the need for availability of a large number of different fixtures, capable of exhibiting a range of shock response characteristics, in favor of a single tunable system.
Date:
September 30, 1993
Creator:
Davie, N. T.
System:
The UNT Digital Library
Basic fluid system trainer
This invention, a trainer mounted and housed within a mobile console, is used to teach and reinforce fluid principles to students. The system trainer has two centrifugal pumps, each driven by a corresponding two-speed electric motor. The motors are controlled by motor controllers for operating the pumps to circulate the fluid stored within a supply tank through a closed system. The pumps may be connected in series or in parallel. A number of valves are also included within the system to effect different flow paths for the fluid. In addition, temperature and pressure sensing instruments are installed throughout the closed system for measuring the characteristics of the fluid, as it passes through the different valves and pumps. These measurements are indicated on a front panel mounted to the console, as a teaching aid, to allow the students to observe the characteristics of the system.
Date:
April 30, 1991
Creator:
Semans, J. P.; Johnson, P. G.; LeBoeuf, R. F. Jr.; Kromka, J. A.; Goron, R. H. & Hay, G. D.
System:
The UNT Digital Library
Duplex sampling apparatus and method
An improved apparatus is provided for sampling a gaseous mixture and for measuring mixture components. The apparatus includes two sampling containers connected in series serving as a independently determine the amounts of condensable and noncondensable gases in admixture from a single sample. More specifically, a first container includes a first port capable of selectively connecting to and disconnecting from a sample source and a second port capable of selectively connecting to and disconnecting from a second container. A second container also includes a first port capable of selectively connecting to and disconnecting from the second port of the first container and a second port capable of either selectively connecting to and disconnecting from a differential pressure source. By cooling a mixture sample in the first container, the condensable vapors form a liquid, leaving noncondensable gases either as free gases or dissolved In the liquid. The condensed liquid is heated to drive out dissolved noncondensable gases, and all the noncondensable gases are transferred to the second container. Then the first and second containers are separated from one another in order to separately determine the amount of noncondensable gases and the amount of condensable gases in the sample.
Date:
January 30, 1991
Creator:
Brown, P. E. & Lloyd, R.
System:
The UNT Digital Library
Toroidal magnetic detector for high resolution measurement of muon momenta
A muon detector system including central and end air-core superconducting toroids and muon detectors enclosing a central calorimeter/detector are described in this paper. Muon detectors are positioned outside of toroids and all muon trajectory measurements are made in a nonmagnetic environment. Internal support for each magnet structure is provided by sheets, located at frequent and regularly spaced azimuthal planes, which interconnect the structural walls of the toroidal magnets. In a preferred embodiment, the shape of the toroidal magnet volume is adjusted to provide constant resolution over a wide range of rapidity.
Date:
November 30, 1990
Creator:
Bonanos, P.
System:
The UNT Digital Library
Portable vacuum object handling device
The disclosure relates to a portable device adapted to handle objects which are not to be touched by hand. A piston and bore wall form a vacuum chamber communicating with an adaptor sealably engageable with an object to be lifted. The piston is manually moved and set to establish vacuum. A valve is manually actuable to apply the vacuum to lift the object.
Date:
July 30, 1981
Creator:
Anderson, G.H.
System:
The UNT Digital Library
Carrier sense data highway system. [Patent for a two-way Data Transmission System]
A data transmission system is disclosed which includes a transmission medium which has a certain propagation delay time over its length. A number of data stations are successively coupled to the transmission medium for communicating with one another. Each of the data stations includes a transmitter for originating signals, each signal beginning with a carrier of a duration which is at least the propagation delay time of the transmission medium. Each data station also includes a receiver which receives other signals from other data stations and inhibits operation of the transmitter at the same data station when a carrier of another signal is received.
Date:
April 30, 1981
Creator:
Frankel, R.
System:
The UNT Digital Library
Multipolar corneal-shaping electrode
The disclosure relates to a multipolar probe using radiofrequency energy to reshape the cornea of an eye. The surface of the cornea is flushed continuously with a conductive coolant during operation.
Date:
April 30, 1981
Creator:
Doss, J.D.
System:
The UNT Digital Library
Lubricating Oil Dispenser
Patent for a lubricating oil dispenser designed specifically to dispense lubricants and similar liquids. Dispenser is formed with a transparent container tubes to show the customer the character of the liquid being dispensed.
Date:
May 30, 1922
Creator:
Fenaes, Alfred R. & Kennedy, William H.
System:
The Portal to Texas History
Attachment for Tractors.
Patent for attachments in tractors. "This invention relates to tractors and has for its object the provision of means where by when the front axle and wheels of the tractor rise caused by rearing of the tractor, the clutch will be automatically disconnected and remain so until the front wheels of the tractor descend again into engagement with the ground. An important and more specific object is the provision in a tractor of a front axle formed n sections pivotally connected, one section being connected by suitable means with the clutch mechanism and the wheels serving as weights whereby when the tractor rears back and the front wheels leave the ground the axle sections will move relatively and exert a pull upon the means connected with the clutch whereby the clutch will be thrown out."
Date:
August 30, 1921
Creator:
Cholick, Joseph John
System:
The Portal to Texas History
Dirigible Headlight
Patent for improving headlights for automobiles and other vehicles. Improvements include simpler, yet effective, connectivity between the head lamps and the steering mechanism.
Date:
August 30, 1921
Creator:
Davis, Robert E.
System:
The Portal to Texas History
Door-Hook.
Patent for a low-cost door hook designed for securing screen doors in a closed position which may be operated from either side of the door.
Date:
August 30, 1921
Creator:
Randazzo, Lillian
System:
The Portal to Texas History
Filing Cabinet
Patent for filing cabinet designed to accommodate blue prints and large papers.
Date:
August 30, 1921
Creator:
Southwell, Charles R.
System:
The Portal to Texas History
Method and Plant for Storing and Averaging Materials.
Patent for improved storing and retrieval of mining materials through the use of new mechanisms, procedures, and building structures.
Date:
August 30, 1921
Creator:
Cole, David & Bergman, Julius
System:
The Portal to Texas History
Nail-Staple for Barbed Wire.
Patent for a tool meant to assist with attaching fence wire to posts. The nail-staple supports the wire during application to the post, which allows it to be done by a single person, saving time and labor.
Date:
August 30, 1921
Creator:
Washington, George
System:
The Portal to Texas History
Peanut-Digger.
Patent for machine that extracts peanuts while avoiding losing nitrogen from the root in the process. Machine severs plants from the roots and raises the whole plant in order to release loose dirt, then gathers the. plants using a rake-like mechanism.
Date:
August 30, 1921
Creator:
Smith, Morman J. & Browder, Benjamin F.
System:
The Portal to Texas History