Location History:
- Sandviken, SE (1976 - 1983)
- Storvik, SE (1984 - 1989)
Company Filing History:
5 out of 162 
4 out of 211 
1 out of 204 
Years Active: 1976-1989
Title: The Innovative Mind of Bernt S. Liljekvist
Introduction
Bernt S. Liljekvist is a notable inventor based in Storvik, Sweden, recognized for his contributions to the field of drilling technology. With a remarkable portfolio of nine patents, Liljekvist has made significant advancements that are pivotal in enhancing drilling operations.
Latest Patents
Among his latest innovations are two pioneering designs:
1. **Drill Bit** - This invention features a drill bit for use in a drill string, which comprises a set of central rod members and a surrounding set of tubular members. It includes a longitudinally extending flushing channel that connects to an annular space between the rod and tubular members through a transverse passage. Notably, the flushing channel has at least two end passages that are smaller in cross-sectional area compared to the overall cross-section of the connecting portion.
2. **Drill Element for Percussion Drilling** - This innovation pertains to a drill element designed for percussion drilling. It incorporates a cylindrical screw thread with a single entry, optimized for thread diameters of less than 30 mm. The design includes features such as a shoulder angle of less than 69 degrees and a pitch angle ranging from over 5.6 degrees to under 11 degrees.
Career Highlights
Bernt has made his mark in the industry through his tenure at notable companies, including Sandvik and Santrade, Ltd. His experiences at these firms have greatly influenced his inventive journey, allowing him to innovate in drilling technology effectively.
Collaborations
Throughout his career, Bernt has collaborated with esteemed professionals in his field, including Anders E. Persson and Bo Carl Nordmark. These collaborations have fostered a rich exchange of ideas and knowledge, further fueling innovation in their respective projects.
Conclusion
In summary, Bernt S. Liljekvist stands out as a prominent figure in the realm of drilling inventions. His continued contributions, exemplified in his latest patents, demonstrate a commitment to advancing technology for improved drilling practices. As he continues his inventive journey, the industry eagerly anticipates the future innovations that will emerge from his work.