SUCKER ROD TERMINUS ASSEMBLY FOR UNDERGROUND WELLS
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United States of America Patent
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app pub date -
Mar 11, 2016
filing date -
Mar 12, 2015
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Abstract
A sucker rod terminus assembly is provided for use in downhole wells. The sucker rod terminus assembly includes a plurality of parallel composite strands forming an elongate rod and a metallic terminus fitting. The terminus fitting has a cavity with a proximal opening to receive the rod end. The cavity includes a plurality of frustum shaped chambers. Preferably, the frustum shaped chambers have different sizes or shapes wherein at least a frustum chamber's proximal end diameter, distal end diameter, or length is different than an adjacent frustum chamber's proximal end diameter, distal end diameter, or length. Even more preferably, each frustum chamber is diametrically larger than the frustum chamber positioned proximally to it. Preferably, the sucker rod assembly further includes a spreader plate, preferably made up of a plurality of pieces and a hardened material to affix the rod to the terminus fitting.
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