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Casing Point or Strainer.

Description: Patent for casing point or strainer "particularly adapted for use in oil and Artesian wells... which will permit free circulation of the liquid around the lower portion of the casing and free and easy entrance of the same into the casing, and yet will prevent entrance of sand and gravel into the casing" (Lines 12-22).
Date: May 13, 1902
Creator: Carlson, Andrew Edward
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Sand-Screen for Wells.

Description: Patent for a sand-screen for wells "to provide a simple and efficient device adapted for use on ordinary well-tubing, the same being capable of construction and repair at small cost, being readily attachable to and removable from the tubing, and having means for effectually excluding sand from the inlet end of the tubing, while permitting the free inflow of water therethrough" (lines 9-17).
Date: January 13, 1903
Creator: Jackson, Stokeley & Thompson, Neals
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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