Location History:
- S951 50 Lulea, SE (1992)
- Lule.ang., SE (1986 - 1998)
- Luleå, SE (2001 - 2011)
- Lulea, SE (1988 - 2023)
Company Filing History:
19 out of 108 
1 out of 1 
5 out of 832,912 Years Active: 1986-2023
Title: Innovations in Lift Control Systems: The Work of Gunnar Liljedahl
Introduction
Gunnar Liljedahl, a prominent inventor based in Lulea, Sweden, has made significant contributions to the field of lift technology. With a remarkable portfolio of 26 patents, his innovations focus primarily on control systems for lifting devices, demonstrating a commitment to enhancing safety and efficiency in their operation.
Latest Patents
Liljedahl's latest patents revolve around advanced lift control systems. One key invention is a method for operating a lifting device that involves monitoring the current supplied to the lift actuator. This method incorporates a control unit that discontinues current supply when it exceeds a predefined threshold. Additionally, it determines an accumulated number of overload stops based on the current supplied. The system captures operating characteristics and times, leading to the calculation of an accumulated load-time parameter for the lifting device. This data can then be uploaded for further analysis. Another notable patent features an overhead lift equipped with a control system that includes a processor and memory, enabling it to manage operating parameters effectively and upload data to computers or networks for monitoring purposes.
Career Highlights
Gunnar Liljedahl has developed his innovative ideas through his tenure at Liko Research & Development AB, where he honed his expertise in lift technology. His inventions have not only resulted in numerous patents but have also contributed to advancements in lifting safety and efficiency.
Collaborations
Throughout his career, Liljedahl has been associated with companies like Liko Research & Development AB, allowing him to collaborate with fellow innovators and engineers in the field of lift technologies. These partnerships have enriched his work and expanded the impact of his inventions.
Conclusion
Gunnar Liljedahl's extensive portfolio and innovative approach to lift control systems highlight his significant role in enhancing the functionality and safety of lifting devices. His patents reflect a forward-thinking mindset that continues to inspire advancements in the industry. As technology evolves, Liljedahl's work remains pivotal in shaping the future of lift systems.