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US 9,869,065 B2Granted
Ballast mats and methods of forming the same
AssigneeVersaflex, Inc.
InventorJoseph Haydu
Life of this patent
Estimating the term…
Abstract
A method and apparatus for coating transportation components such as a bridge deck with a coating. The coating includes a sealant and rubber mixed with a resin and a foaming agent. The apparatus includes a hopper for the rubber, a impingement gun for the resin and a gun assembly that combined the rubber and resin together at a combined nozzle for spraying.
Claims25
A protective coating system for a railway bridge structure having ballast and a railway track structure comprising:
- a waterproof membrane disposed on the railway bridge structure, wherein the waterproof membrane forms a substantially waterproof seal on the railway bridge structure;
- a ballast protection coating adhered to the waterproof membrane, the ballast protection coating including a rubber compound and resin and a foaming agent that induces the resin to foam such that the resultant hardened resin inhibits water intrusion, wherein the ballast protection coating is formed from a plurality of layers, wherein the ballast protection coating is compressible;
- and
- wherein the thickness of the waterproof membrane is less than the thickness of the ballast protection coating,
- wherein the ballast protection coating is configured to protect the waterproof membrane from damage caused by operation of the railway track structure.
2 more elements
A protective coating system for a railway structure comprising:
- a waterproof membrane disposed on the railway structure;
- and
- a ballast mat further comprising,
- a ballast protection coating disposed on the waterproof membrane, wherein the ballast protection coating is composed of, at least in part, a rubber compound and a foaming agent;
- and
- a sealing layer disposed on the ballast protection layer.
3 more elements
Dependencies are inferred from the claim text.