8 Matching Results

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in subjects: "Oil well pumps"  
Results: 1 - 8

Pump-Piston.

Description: Patent for an improved pump piston used to pump oil from deep wells. The main improvement in this piston is that it is less susceptible to damage from sand or sediment by keeping sediment out of the piston valve, thus preventing it from accruing any long term damage that may render the piston irreparable. This design is also capable of fixing any wear due to sand or grit without removing the piston from the well.
Date: May 4, 1920
Creator: Coulson, William J.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Pump

Description: Patent for an improvement to pumps. This pump is designed to facilitate pumping of materials from deep oil and water wells.
Date: March 20, 1920
Creator: Hunt, David
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Pump.

Description: Patent for a pump specifically designed for oil wells to make drilling oil more efficient, lucrative, and easier to perform.
Date: April 13, 1920
Creator: Carden, David A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Pump.

Description: Patent for an improved pump valve designed for a pump for pumping oil from oil wells "which will not be affected by the fluid or gas pressure in the bore" (lines 17-18).
Date: September 30, 1919
Creator: Graf, Sydney H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Deep-Well Pump.

Description: Patent for "new and useful Improvements in Deep-Well Pumps," (lines 5-6), including illustrations. An improvement on the inventor's previous patent (1013579), with the intention of preventing and removing sand accumulation while pumping oil.
Date: August 19, 1919
Creator: Andrews, Benjamin
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Deep-Well Pump

Description: Patent for a deep well pump. The pump allows for existing well casing can be adapted to support the pump and valves without being removed.
Date: March 2, 1920
Creator: Ligon, Arthur Lee
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Pump.

Description: Patent for a pump designed to draw liquid, such as oil, from a well.
Date: June 14, 1921
Creator: Jones, Oceola
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Pumping-Jack.

Description: Patent for a pumping jack that has a walking beam of a jack for equalizing the dead weight of the pump, which reduces useless weight on the pumping engine.
Date: unknown
Creator: Scott, Henry T.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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