Title: Deep drilling machine demountable for helicopter transport

Abstract: This invention is directed to a deep bore hole drilling machine which is designed for portability so that each part of the system can be broken down into subassembly units which are of less than 4,000 pounds total weight. Thus, the entire drilling system can be transported by helicopters which are capable of carrying a total weight of 4,000 pounds.

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Inventors: Houck, Theodore B. (Tulsa, OK, US)

Application Number: 344090
Filing Date: 1973-03-23
Publication_date: 1976-01-20
Assignee: Parker Drilling Company, Inc. (Tulsa, OK)
Primary Class(es): 74/661 74/325, 74/665L, 254/358, 474/73, 474/86
Other Classes:
US Patent Ref:

2784557	Mar, 1957	Wilson	254/187.
2924121	Feb, 1960	Wilson	74/661.
3109322	Nov, 1963	Cordrey	74/661.
3157065	Nov, 1964	Isenberg et al.	74/665.

Other Refs:
Primary Examiner: Scott, Samuel
Assistant Examiner: McKenzie, Jr., Frank H.
Attorney: Head and Johnson