UNT Libraries Government Documents Department - 178 Matching Results

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Combination Well-Packer and Setting-Tool.

Description: Patent for a well packer and setting tool for the prevention of intermingling between oil and water in a well when used by itself or with other pipes. The invention allows for the packer to be set using the setting tool which can then be removed once the packer is in place.
Date: January 6, 1920
Creator: Abercrombie, Jamie & Dunman, Nesbit M.
Item Type: Refine your search to only Patent

Pump.

Description: Patent for a new and improved design for pumps as they are used in deep wells. New design meant to prevent sand from entering machine between the working barrel and plunger.
Date: February 1, 1919
Creator: Carmichael, Robert E.
Item Type: Refine your search to only Patent

Sulphur-Mining Apparatus.

Description: Patent for a thermal solvent based sulfur mining apparatus that is placed in a sulfur mining well. Utilizing thermodynamics, the apparatus has a new way to introduce air or steam into the various parts of the apparatus. It is designed with "simplicity and durability of construction" (lines 49-50).
Date: December 17, 1918
Creator: Carmichael, Robert E.
Item Type: Refine your search to only Patent

Hoisting Drum

Description: Patent for improvements to hoisting drums for use in drilling oil, gas, and water wells, with the object being "to employ a plurality of hoisting drums upon the same shaft so that the cable may be wound partly on one drum and partly on another" (lines 73-76) such that the danger of cable cutting is decreased and the speed of operation is increased, including illustrations.
Date: May 2, 1922
Creator: Suman, John R. & Gamble, Adrian R.
Item Type: Refine your search to only Patent

Pipe-Wrench.

Description: Patent for the improvement of pipe wrenches necessary for use in well drilling or other circumstances where a wrench of strong construction is needed. This patent provides for a pipe wrench that can be easily adjusted to fit pipes of differing sizes and is easily manipulated for use regardless of direction.
Date: December 9, 1919
Creator: Carmichael, Robert E.
Item Type: Refine your search to only Patent
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