Company Filing History:
Years Active: 1983-1984
Title: Edward Johnston: Innovator in Tunnel Tube Manufacturing
Introduction
Edward Johnston is a notable inventor based in Newark, DE (US). He has made significant contributions to the field of tunnel tube manufacturing, holding a total of 2 patents. His work focuses on improving the processes and apparatus used in the construction of underwater tunnel tubes.
Latest Patents
Johnston's latest patents include an "Apparatus and process for manufacture of tunnel tubes." This invention relates to an improved apparatus and process for the manufacture of tunnel modules and tunnel sections used to build underwater tunnel tubes. A collapsible fixture is utilized to roll up a steel plate into a cylindrical shell. Cables wrapped around channels on the outer ends of fixtures are employed to roll up the fixture along the plate. After the fixture with the shell is placed on pedestals for further fabrication, cables in the channels are used to rotate the shells. Once the fixture is collapsed within the shell, it is raised by pedestal lifting mechanisms, and wheels on the fixture are lowered to aid in the removal of the fixture from the shell and onto a roll-out table. Roller mechanisms also assist in this removal process. The roll-out table is situated between two sets of pedestals and is used for the removal of fixtures from single modules or sets of modules. A common winch is utilized to pull out the fixture onto the table from each shell module.
Career Highlights
Edward Johnston is currently employed at Amca International Corporation, where he continues to innovate in the field of tunnel construction. His work has been instrumental in advancing the technology used in underwater tunnel tube manufacturing.
Collaborations
Johnston has collaborated with notable coworkers, including Morton Jacobs and Melvin E. Miller, contributing to a dynamic work environment that fosters innovation.
Conclusion
Edward Johnston's contributions to tunnel tube manufacturing through his patents and work at Amca International Corporation highlight his role as a key innovator in this specialized field. His inventions are paving the way for advancements in underwater construction technology.