What is a Marsh Mellow® spring?
Marshmellow is the trade name of a fabric and rubber spring developed by Firestone Industrial Products.
Rubber springs have long been a subject of interest in the vehicular suspension and industrial application fields because of their reliability, corrosion resistance, low cost, and basic simplicity.
The major obstacle to solid rubber springs has been that to obtain the load requirements for many applications, solid rubber springs were either physically too large, or became unstable laterally when they were made long enough to provide good isolation.
The concept of “stacking” rubber springs answered the latter problem, but introduced the need for complicated mechanical guide systems to control the lateral movement.
The Marsh Mellow ® fabric and rubber spring solves this basic problem and provides a new and unique way to make use of the many advantages of rubber as an isolator.