UNT Libraries Government Documents Department - 3 Matching Results

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Automatic Fuse Plug

Patent for "improvements in automatic fuse plugs" (lines 12-12). These are "adapted to be successively engaged by a swinging contact arm" (lines 16-17).

Date: May 19, 1914

Creator: Bowman, Levi M.

Item Type: Patent

Method of Sealing the Walls of Deep Wells

Patent for a new and useful method of dealing the walls of deep wells in which the means for lining oil wells by the use of the customary metal casing is avoided, the cost is very materially reduced, and numerous expenses and failures are avoided.

Date: November 29, 1921

Creator: Nolan, William E.

Item Type: Patent

Method of Sealing The Walls of Oil-Wells

Patent for a method of sealing oil wells to avoid applying casing to the wells to prevent leakage, seepage, or cave-ins.

Date: December 7, 1920

Creator: Nolan, William E.

Item Type: Patent

UNT Libraries Government Documents Department - 3 Matching Results

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Automatic Fuse Plug

Method of Sealing the Walls of Deep Wells

Method of Sealing The Walls of Oil-Wells