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Process of making cryogenically cooled high thermal performance crystal optics
A method for constructing a cooled optic wherein one or more cavities are milled, drilled or formed using casting or ultrasound laser machining techniques in a single crystal base and filled with porous material having high thermal conductivity at cryogenic temperatures. A non-machined strain-free single crystal can be bonded to the base to produce superior optics. During operation of the cooled optic, N{sub 2} is pumped through the porous material at a sub-cooled cryogenic inlet temperature and with sufficient system pressure to prevent the fluid bulk temperature from reaching saturation.
Date:
June 29, 1990
Creator:
Kuzay, T. M.
System:
The UNT Digital Library
Process of making cryogenically cooled high thermal performance crystal optics
A method for constructing a cooled optic wherein one or more cavities are milled, drilled or formed using casting or ultrasound laser machining techniques in a single crystal base and filled with porous material having high thermal conductivity at cryogenic temperatures. A non-machined strain-free single crystal can be bonded to the base to produce superior optics. During operation of the cooled optic, N{sub 2} is pumped through the porous material at a sub-cooled cryogenic inlet temperature and with sufficient system pressure to prevent the fluid bulk temperature from reaching saturation.
Date:
June 29, 1990
Creator:
Kuzay, Tuncer M.
System:
The UNT Digital Library
Display Device
Patent for improvements in display devices that displays apparel without taking up a lot of space and will be out of the way when not needed.
Date:
June 29, 1920
Creator:
Frank, Henry L. A.
System:
The Portal to Texas History
Door Stop and Holder.
Patent for an invention that relates to door stops and holders, with the object to limit the swinging of the door when opened and will also hold the door open when it is desired to maintain the same in a open position.
Date:
June 29, 1920
Creator:
Newsom, John Wesley
System:
The Portal to Texas History
Float-Controlled Liquid-Gaging and Cut-Off Means.
Patent for an automatic cut off device for oil tanks that indicates the amount of water in an oil tank and will automatically close the discharge opening when all the water has been discarded from the tank.
Date:
June 29, 1920
Creator:
Waldrep, Granville J.
System:
The Portal to Texas History
Peanut-Harvester
Patent for a peanut harvester which can be attached to a standard cultivator frame. It is designed to uproot and sever peanut vines, then deposit the newly aerated peanut vines back onto the ground.
Date:
June 29, 1920
Creator:
Byrd, Gordon W.
System:
The Portal to Texas History
Pneumatic Pump.
Patent for pumps for oil and water wells that can be operated by compressed air to force the water or oil out of the well.
Date:
June 29, 1920
Creator:
Goss, George W.
System:
The Portal to Texas History
Shoe-Securing Device
Patent for a fastening strap that secures baby shoes to baby feet, including illustrations.
Date:
June 29, 1920
Creator:
Elliot, Eloise Foster
System:
The Portal to Texas History
Shredding and Blending Mechanism for Feed.
Patent for a mechanism that shreds hay, straw, or other feed.
Date:
June 29, 1920
Creator:
Stubbs, Robert A.
System:
The Portal to Texas History
Shutter-Actuating Apparatus.
Patent for a device which acts as "a simple and relatively inexpensive apparatus by means of which a camera shutter may be operated either for snapshots or time exposures, from a point at a distance from the camera so that the operator may be included in the photograph and yet be able to absolutely control the time and duration of the exposure" (lines 10-17). Illustrations included.
Date:
June 29, 1920
Creator:
Emmrick, Hans B.
System:
The Portal to Texas History
Spring-Wheel.
Patent for new improvements for Spring-Wheels "in which the springs are rigidly secured to the hub portion and pivotally connected with the rim portion" (lines 10-12) including construction and illustrations.
Date:
June 29, 1920
Creator:
Rozankovich, Thomas
System:
The Portal to Texas History
Tatting-Shuttle
Patent for an improved tatting shuttle. This new shuttle will hold multiple bobbins and shuttles to carry multiple colors of threads.
Date:
June 29, 1920
Creator:
Wolle, Leonora
System:
The Portal to Texas History
Tire-Oven.
Patent for a device that heats wagon and buggy wheel tires that will warm them evenly.
Date:
June 29, 1920
Creator:
Howlett, Isaac C.
System:
The Portal to Texas History
Tool-Joint.
Patent for improvements in a tool joint that has been adapted to connect sections of a drill used in drilling wells.
Date:
June 29, 1920
Creator:
Stafford, George A. & Stafford, Roy M.
System:
The Portal to Texas History
Automatic Weighing Scale
Patent for moving a pole along a beam that efficiently measures weight as a scale.
Date:
June 29, 1918
Creator:
Foster Jr., Samuel T.
System:
The Portal to Texas History
Air-Lift for Elevating Liquids.
Patent for a pneumatic lift that maintains the air pressure needed to effectively move liquid through a pipe.
Date:
June 29, 1915
Creator:
Andrews, Benjamin
System:
The Portal to Texas History
Chase for Printers.
Patent for chase for printing presses, and more particularly to facets of choses or type which are adjustable without knocking down the type and which can be shifted to any desirable position on the bed of the printing press and held rigid.
Date:
April 23, 1915
Creator:
Bolles, Percy S.
System:
The Portal to Texas History
Engine.
Patent for new steam engine design with illustrations
Date:
June 29, 1915
Creator:
Burrow, Edgar A.
System:
The Portal to Texas History
Fastener.
Patent for a fastener to be used in the connection of doors to ensure they are locked into place.
Date:
June 29, 1915
Creator:
Wilson, William W.
System:
The Portal to Texas History
Governor
Patent for Governor that improves upon a speed controlling mechanism, specifically for controlling a reciprocating element like an engine piston, including illustration and instructions. This application is a division of an earlier application (Serial Number: 843, 812 submitted June 08, 1914).
Date:
June 29, 1915
Creator:
Burrow, Edgar A.
System:
The Portal to Texas History
Money-Changing Machine.
Patent for a machine that provides change in coins automatically.
Date:
June 29, 1915
Creator:
Dodson, Clifton T.
System:
The Portal to Texas History
Oil Burner
Patent for an oil burner that can be inserted into a stove or range and function with kerosine oil as fuel. The size of the flame can be adjusted with this oil burner, and it can be installed in stoves and ranges without structural changes being made to the equipment.
Date:
June 29, 1915
Creator:
Jordan, David
System:
The Portal to Texas History
Pump.
Patent for "a pneumatically actuated nozzle for elevating water, in which the parts are readily assembled and adjusted for both shallow and deep work" (lines 19-22).
Date:
June 29, 1915
Creator:
Meier, Fred H.
System:
The Portal to Texas History
Sanitary Tooth-Cleaner.
Patent for a device to clean teeth, made of a fabric pocket that can be placed over an index finger, including instructions and illustrations.
Date:
June 29, 1915
Creator:
Over, Edwin Gould
System:
The Portal to Texas History