The Charles Machine Works, Inc.

Adam R Hall

Richard Felix Sharp

Cody L Sewell

Ricky G Porter

A dual pipe drill string system having increased fluid flow. The dual pipe system comprises a plurality of pipe sections, each pipe section having an inner rod and an outer pipe. The inner rod and the outer pipe of each pipe section may be coupled to the inner rod and outer pipe of an adjacent pipe section. An annulus between the inner rod and the outer pipe defines a fluid flow path through the dual pipe system. The outer pipe defines a shoulder at each end of an individual pipe section. The inner rod defines at least one stop for maintaining the inner rod within the outer pipe. A spacing assembly disposed around the circumference of the inner rod defines paths for fluid flow and maintains a minimum distance between the stop and the shoulder at one end of outer pipe of the pipe section.

Dual pipe for increased fluid flow

A pipe handling assembly for transporting pipe sections to and from the drill string of a horizontal boring machine. The system comprises a magazine, a cradle for supporting the magazine, a support member, a drive system, and a transfer assembly. The drive system may move the cradle and the magazine laterally on the support member or may pivot the magazine. The transfer assembly transfers pipe sections between the magazine and the spindle connection area. The magazine and the support frame are disposed above the spindle connection area such that only empty columns of the magazine are outside of the footprint of the boring machine. The magazine may be removed from the cradle when empty or full to continue with the boring operation.

Growing community of inventors

Perry, OK, United States of America

Adam R Hall