Company Filing History:
Years Active: 1991-1997
Title: Innovations by Dennis A. Sroka
Introduction
Dennis A. Sroka is an accomplished inventor based in Ludington, MI (US). He has made significant contributions to the field of railroad maintenance through his innovative patents. With a total of 2 patents, Sroka has developed methods and vehicles that enhance the efficiency and accuracy of railroad track maintenance.
Latest Patents
One of Sroka's latest patents is a maintenance vehicle and method for measuring and maintaining the level of a railroad track in a single pass. This invention features an instrument carriage, or frog, that is towed by the maintenance vehicle. The frog carries at least one inclinometer to measure the longitudinal level and crossfall of the track. As the vehicle stops to work on the track, the inclinometers are given the necessary settling time for accurate readings. Additionally, the track is measured and modeled before and after maintenance using a primary measurement system and the frog.
Another notable patent is the railroad track curve lining apparatus and method. This invention provides an improved railroad track curve liner that accurately locates track transition points. The curve liner is mounted on a track tamper, which acquires track ordinate information during the first pass. After calculating the ideal track configuration, the tamper shifts the track to achieve this configuration in a second pass. This method recognizes that the ordinate graph is not linear in all areas, particularly at track transition points.
Career Highlights
Dennis A. Sroka works at Pandrol Jackson, Inc., where he continues to innovate in the field of railroad maintenance. His work has significantly impacted the efficiency of track maintenance operations.
Collaborations
Sroka has collaborated with notable coworkers such as William E. Perry and Bruce W. Bradshaw, contributing to advancements in railroad technology.
Conclusion
Dennis A. Sroka's innovative patents and contributions to railroad maintenance demonstrate his commitment to improving the industry. His work continues to influence the way railroad tracks are maintained and monitored.