Location History:
- Esslingen, DE (2001 - 2004)
- Esslingen am Neckar, DE (2004)
Company Filing History:
2 out of 33 
1 out of 832,961 Years Active: 2001-2004
Title: Winfried Gräf: Innovator in Safety Switching Devices
Introduction
Winfried Gräf is a notable inventor based in Esslingen, Germany. He has made significant contributions to the field of electrical safety with a focus on safety switching devices. With a total of 3 patents to his name, Gräf's work emphasizes the importance of safety in electrically driven machines.
Latest Patents
One of Gräf's latest inventions is a safety switching device designed for safely switching off an electrical load. This device features a failsafe disconnection unit and a non-failsafe signaling unit, both of which operate based on an external control signal. The disconnection unit is engineered to switch off the electrical load with a first delay, ensuring safety during operation. Additionally, the signaling unit provides an external reporting signal without delay, enhancing the overall safety mechanism.
Another significant patent is a system aimed at reliably preventing the unexpected restarting of electrically powered machines. This safety lockout switch system confirms the power-free status of the power supply output visually. It is designed to be flexible, making it suitable for various types and sizes of machines. Gräf's attention to technical and safety aspects ensures that this installation can be implemented in practically every country worldwide.
Career Highlights
Throughout his career, Winfried Gräf has worked with reputable companies, including Pilz GmbH & Co. His experience in the industry has allowed him to develop innovative solutions that address critical safety concerns in electrical engineering.
Collaborations
Gräf has collaborated with notable professionals in his field, including Rolf Dickhoff and Richard Veil. These partnerships have contributed to the advancement of safety technologies in electrical systems.
Conclusion
Winfried Gräf's contributions to safety switching devices highlight his commitment to innovation and safety in electrical engineering. His patents reflect a deep understanding of the technical and safety requirements necessary for modern machines. Gräf's work continues to influence the industry and enhance safety standards globally.