Bjarne Hellman

Title: **Innovative Contributions of Inventor Bjarne Hellman**

Introduction

Bjarne Hellman, an inventive mind based in Riihimäki, Finland, has made notable strides in the field of engineering with two significant patents to his name. His work primarily centers around enhancements in coatings for rolls used in the pulp and paper industry, which demonstrate his commitment to innovation and improving manufacturing processes.

Latest Patents

Hellman’s recent patent focuses on a **Method for sealing of a coating on a roll**. This invention addresses the corrosion resistance and impermeability of coatings applied to press rolls. Specifically, it entails a roll with an intermediate sealed layer that enhances durability, primarily in machines for pulp, paper, board, and finishing processes. The innovative coating consists of a porous outer surface layer made from ceramic or ceramic-metal material and is applied through thermal spraying.

His other significant invention, titled **Abrasive-band grinding device and method for controlling an abrasive-band grinding device during grinding of faces of crowned rolls**, provides a detailed mechanism for grinding rolls using an abrasive band. This device utilizes a motorized approach where the abrasive band is effectively pressed against the roll face while allowing for control over the angle of contact through an actuator, thereby improving the grinding process's precision and efficiency.

Career Highlights

Throughout his career, Bjarne Hellman has collaborated with reputable companies such as Valmet Corporation and Metso Paper Inc. These affiliations highlight his involvement in leading organizations within the paper and pulp industry, underscoring his expertise and the relevance of his innovations in practical applications.

Collaborations

Hellman has also worked alongside talented professionals in the industry, including colleagues Seppo Parviainen and Kari Niemi. Such collaborations have likely contributed to the refinement and success of his inventions, fostering a creative environment for innovation.

Conclusion

Bjarne Hellman's contributions to engineering, particularly in the realm of coating technologies for rolls, signify his role as a forward-thinking inventor. His patents not only reflect his technical knowledge but also his dedication to enhancing tools used in industrial applications. As the industry evolves, Hellman’s innovative spirit continues to inspire advancements in manufacturing processes, showcasing the critical impact of inventors in shaping technology.