Patent ID: 9278412
Filing Date: 2016-03-08
CPC Classification: B21C,B21D,B23P,E21B,Y10T

Claim Text:
1. A method for reconditioning a used sucker rod having a given diameter, the method comprising the steps of: a. obtaining a used sucker rod having a diameter and a length; b. removing contaminates from the surface of the sucker rod; c. performing a non-visual inspection of the used sucker rod to determine if the sucker rod is amenable to reconditioning; d. categorizing the sucker rod into a steel class; e. placing the sucker rod on a conveyor that transports the sucker rod through an induction furnace and heating the rod to a temperature between about 900° C. and about 1300° C. until the rod is able to undergo plastic deformation; f. shaping the rod using a pressure machine at a temperature wherein plastic deformation occurs and the conveyor removes the sucker rod from the pressure machine; g. cooling the rod; h. cutting the sucker rod into a desired length; and i. forging ends onto the rod.