Resource Type
Partner
Degree Department
Country
States
Decade
Month
Day
Results:
1 - 24 of
587
next
Automatic voltage-imbalance detector
A device is described for indicating and preventing damage to voltage cells such as galvanic cells and fuel cells connected in series by detecting sequential voltages and comparing these voltages to adjacent voltage cells. The device is implemented by using operational amplifiers and switching circuitry is provided by transistors. The device can be utilized in battery powered electric vehicles to prevent galvanic cell damage and also in series connected fuel cells to prevent fuel cell damage.
Date:
May 20, 1981
Creator:
Bobbett, R. E.; McCormick, J. B. & Kerwin, W. J.
System:
The UNT Digital Library
Improved solvent extraction recovery of shale oil. [DOE patent application]
An improved process for solvent extraction of organic matter from shale by two extraction steps in sequence. The extraction steps are: (1) treating a kerogen-containing shale with a solvent system comprising a combination of water and an alcohol at a temperature of about 375 to 425/sup 0/C; and (2) treating the product of (1) with a solvent system comprising a combination of an alcohol and another organic solvent at an elevated temperature, but not above about 425/sup 0/C. The organic matter is recovered by separating the liquid which results from step (2) from the shale solids.
Date:
July 20, 1981
Creator:
McKay, John F. & Chong, Shuang-Ling
System:
The UNT Digital Library
Closet-Flushing Mechanism.
Patent for a water closet flushing mechanism, which prevents the water from standing in the toilet bowl where it is liable to freeze in cold weather.
Date:
June 20, 1911
Creator:
Parker, Thomas H.
System:
The Portal to Texas History
Automobile Torpedo
Patent for a shell torpedo launcher for submarines.
Date:
December 20, 1910
Creator:
Douglas, William M.
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
Cotton-Press.
Patent for new and useful improvements in cotton presses, including instructions and illustrations.
Date:
December 20, 1898
Creator:
Mason, William R.
System:
The Portal to Texas History
Buggy Wrench
Patent for a buggy wrench. Illustration included.
Date:
September 20, 1904
Creator:
Ware, Richard M. & Carroll, James Malcum
System:
The Portal to Texas History
Base for Columns
Patent for a base for columns which drains water away from the base.
Date:
September 20, 1910
Creator:
Riley, Samuel L.
System:
The Portal to Texas History
Cotton-Gin Attachment
Patent for an attachment to be used as a chute for cotton gins. Illustrations included.
Date:
April 20, 1909
Creator:
Story, Henton L.
System:
The Portal to Texas History
Aseptic Fountain Syringe or Irrigator
Patent for an aseptic fountain syringe or irrigator for use by doctors that is easily cleaned and portable.
Date:
February 20, 1912
Creator:
Leach, Shirley N.
System:
The Portal to Texas History
Cooking Utensil.
Patent for an improved steam-cooker in which different kinds of food can be simultaneously cooked in separate containers. Individual cooking vessels are removable from the steam-cooker.
Date:
November 20, 1906
Creator:
Daniels, Laura E.
System:
The Portal to Texas History
Boiler-Feed Regulator.
Patent for a new and useful boiler feed regulator, including instructions and illustrations.
Date:
September 20, 1898
Creator:
Mitchell, Charles Bradley
System:
The Portal to Texas History
Bin-Measuring Apparatus
Patent for a bin measuring apparatus for weighing dry products for sale quickly and accurately.
Date:
April 20, 1909
Creator:
Duke, Joseph S.
System:
The Portal to Texas History
Cotton Picker
Patent for a machine for harvesting cotton. Illustrations included.
Date:
April 20, 1909
Creator:
Pierce, John Earl
System:
The Portal to Texas History
Photographic-Printing Device.
Patent for a new photographic-printing device featuring an improved apparatus, as well as new exposure and printing capabilities, including illustrations.
Date:
February 20, 1906
Creator:
Brown, William H.
System:
The Portal to Texas History
Electric Conductor
Patent for electric conductor with switch cord and plug especially designed for use with multiple electrical circuits, as with a telephone switchboard.
Date:
March 20, 1906
Creator:
Weir, Welby D.
System:
The Portal to Texas History
Baling-Press
Patent for an improved baling press.
Date:
June 20, 1911
Creator:
Washington, George M.
System:
The Portal to Texas History
Automatic Cotton Press And Feeder
Patent for automatic cotton press and feeder. Illustrations included.
Date:
November 20, 1906
Creator:
Cumpston, Frederick Bernard; Sewell, T. W.; Page, R. J. & Young, M. G.
System:
The Portal to Texas History
Cattle-Guard
Patent for a cattle guard for use at railroad tracks incorporating a depressible platform connected to a closing mechanism which will impede movement of cattle across the track, but allow for unobstructed movement at other times.
Date:
March 20, 1906
Creator:
Richter, Fred Otto & Richter, Gustav Adolph
System:
The Portal to Texas History
Churn-Dasher
Patent for distributing air through cream while "thoroughly" agitating said cream, with brief instruction and illustrations.
Date:
April 20, 1904
Creator:
Vestal, William B.
System:
The Portal to Texas History
Compound Engine.
Patent for certain new and useful improvements in compound engines, including instructions and illustrations.
Date:
June 20, 1899
Creator:
Johnson, Willie H.
System:
The Portal to Texas History
Air-Cleaning System
Patent for an air cleaning system to be used in homes. Illustrations included.
Date:
April 20, 1909
Creator:
Mayo, William C. & Houlehan, John
System:
The Portal to Texas History
Capsule-Filler
Patent for a capsule filler which allows a prescriptionist to simultaneously fill multiple capsules with medication. Illustrations included.
Date:
July 20, 1909
Creator:
Brown, Patrick Henry
System:
The Portal to Texas History
Axle-Skein
Patent for an axle skein that holds the skein on the axle.
Date:
December 20, 1910
Creator:
Bevil, Andrew H. & Bevil, Charles W.
System:
The Portal to Texas History