Company Filing History:
4 out of 4 
1 out of 25 Years Active: 1976-1983
Title: Milton W. Heisterberg: Innovator in Storage Tank Technology
Introduction
Milton W. Heisterberg is a notable inventor based in Flossmoor, IL (US), recognized for his contributions to storage tank technology. He holds a total of 5 patents, showcasing his innovative spirit and technical expertise in the field.
Latest Patents
Heisterberg's latest patents include a "Secondary Seal for Floating Roof Storage Tank." This invention features a floating roof that rests on the surface of the stored liquid, equipped with a primary seal connecting the roof to the tank shell. An annular secondary seal enhances the gas-tight integrity and weather protection of the primary seal. The design incorporates a tapered and rounded flexible outer end to prevent vapor escape due to irregularities in the tank shell. Additionally, support structures are included to maintain the secondary seal's configuration.
Another significant patent is the "Leveling System for Dry Seal Gasholders." This invention improves the piston leveling system in a cylindrical storage tank with a vertically movable piston. It utilizes a vertically movable weight connected by equal-length cables to support points on the piston. An array of guide sheaves defines the cable paths, ensuring equal tension in the cables, which is indicated by a pin that aligns the attachment points.
Career Highlights
Throughout his career, Heisterberg has worked with prominent companies such as Gatx Tank Erection Corporation and General American Transportation Corporation. His experience in these organizations has contributed to his development as an inventor and innovator in the industry.
Collaborations
Heisterberg has collaborated with various professionals, including his coworker Bernard C. Ogarek. Their joint efforts have likely influenced the advancements in the technologies they worked on together.
Conclusion
Milton W. Heisterberg's innovative contributions to storage tank technology have made a significant impact in the field. His patents reflect a commitment to improving safety and efficiency in storage solutions.