Andreas Infanger

Title: Andreas Infanger and His Railway Locking Inventions.

Introduction

Andreas Infanger is an inventor based in Rafz, Switzerland. His work includes inventions for securing lock bearings in railway points-setting arrangements. He is associated with Siemens Schweiz AG and Siemens Mobility GmbH. His patent portfolio includes 2 patents.

Latest Patents

Infanger’s listed patents, both titled “Pawl Lock with Closure Clamp Screw,” describe ways to secure a lock-bearing screw while allowing it to be tightened within a controlled torque range.

One approach uses a spring package between the foot of a setting tongue and the screw head. This arrangement allows the screw to be tightened while retaining enough rotational adjustment to align its head with an opening in a safety plate, which then latches over the head.

An alternative approach uses a force-fitted anti-rotation ring around the screw head. The ring’s outer teeth engage with a matching safety plate, helping prevent rotation while allowing the screw to be aligned with the tooth spacing. The ring also serves as an adapter, avoiding changes to the rest of the lock-bearing construction.

Career Highlights

Infanger’s listed work focuses on railway infrastructure, particularly the secure fastening of components in points-setting arrangements. His association with Siemens Schweiz AG and Siemens Mobility GmbH connects his career to companies active in the railway and engineering sectors.

Collaborations

Walter Ackeret and Rudolf Herrmann are identified as Infanger’s coworkers. The available information does not specify their roles in the patents or the extent of their collaboration.

Conclusion

Andreas Infanger’s listed inventions address practical safety and installation requirements in railway locking systems, using spring-based and toothed-ring approaches to secure lock-bearing screws.