Jan-Gunnar Hedlund

Title: Jan-Gunnar Hedlund: Innovator in Rock Drilling Technology

Introduction

Jan-Gunnar Hedlund is a notable inventor based in Sandviken, Sweden. He has made significant contributions to the field of rock drilling technology, holding a total of eight patents. His innovative designs have advanced the efficiency and effectiveness of drilling operations.

Latest Patents

Among his latest patents is a rock drill featuring an internal flushing channel. This rock drill is designed for percussive drilling and includes a shank, a collar connected to the front end of the shank, and a rod portion that connects to the collar while carrying a rock cutting means. A central flush channel extends from the front free end of the shank towards the front end, maintaining a substantially constant diameter along its length. The diameter to the smallest outer cross-sectional width ratio of the rod portion is between 0.35 and 0.43. Another notable patent is a down-the-hole drill tool designed for drilling in advance of a casing tube.

Career Highlights

Jan-Gunnar has worked with prominent companies such as Sandvik AB and Santrade Ltd. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking innovations in drilling technology.

Collaborations

Throughout his career, Jan-Gunnar has collaborated with esteemed colleagues, including Bengt A. Asberg and Jan G. Akerman. These partnerships have fostered a creative environment that has led to the development of advanced drilling solutions.

Conclusion

Jan-Gunnar Hedlund's contributions to rock drilling technology through his patents and collaborations highlight his role as a key innovator in the field. His work continues to influence the industry and improve drilling practices.