Company Filing History:
Years Active: 1986-1989
Title: David J Rohweller: Innovator in Subsea Drilling Technology
Introduction
David J Rohweller is a notable inventor based in Ventura, CA, who has made significant contributions to the field of subsea drilling technology. With a total of 2 patents to his name, Rohweller has developed innovative tools that enhance the efficiency and safety of drilling operations.
Latest Patents
One of Rohweller's latest inventions is the Drill Ahead Tool. This tool is designed for drilling the initial portion of a subsea well, allowing operators to drill ahead after running conductor pipe. The running tool is secured to the upper end of the string of conductor pipe and features a mandrel that connects into the string of drill pipe. The design includes a sleeve that locates in the body of the running tool, which has dogs that engage a groove in the wellhead housing to secure the tool during operation. The sleeve is equipped with a cam that maintains the dogs in an extended position, allowing for efficient drilling. Another significant patent is the Snap Type Pipe Connector, which features a snap type pin and box connector. This invention allows for interaction between various box and pin diameters to produce a minimum clearance at an intermediate location, enhancing the reliability of connections in drilling operations.
Career Highlights
Throughout his career, Rohweller has worked with prominent companies in the industry, including Vetco Offshore, Inc. and Vetco Gray Inc. His experience in these organizations has contributed to his expertise in subsea drilling technologies and innovations.
Collaborations
Rohweller has collaborated with several professionals in the field, including Joseph William Pallini, Jr. and Joseph W Pallini. These collaborations have likely fostered the exchange of ideas and advancements in drilling technology.
Conclusion
David J Rohweller stands out as an influential inventor in subsea drilling technology, with his innovative patents paving the way for advancements in the industry. His contributions continue to impact the efficiency and safety of drilling operations.