RAILWAY CAR HATCH COVER HYDROPHOBIC COATING ON VENTS
A railway car hatch cover assembly is provided comprising an outer hatch cover, and a gasket retainer. A venting gasket is provided comprised of mesh venting material, and a hydrophobic coating is applied to the mesh venting material. The venting gasket forms a seal with the outer hatch cover and the hatch ring coaming. The hydrophobic coating is usually applied to an outer surface of the mesh venting material. The mesh venting material allows the passage of air therethrough, while providing a barrier to the passage of dirt or similar debris.
1 . A railway car hatch cover assembly comprising
an outer hatch cover,
a gasket retainer,
a venting gasket comprised of mesh venting material,
and a hydrophobic coating applied to the mesh venting material.
2 . The railway hatch cover assembly of claim 1 wherein the venting gasket forms a seal with the outer hatch cover and the hatch ring coaming.
3 . The railway hatch cover assembly of claim 2 wherein the hydrophobic coating is applied to an outer surface of the mesh venting material.
4 . The railway hatch cover assembly of claim 3 wherein the mesh venting material allows the passage of air therethrough.
5 . The railway hatch cover assembly of claim 1 wherein the venting gasket forms a seal with the outer hatch cover and the hatch ring coaming and wherein the hydrophobic coating is applied to an outer surface of the mesh venting material.
6 . A railway car hatch cover assembly comprising
an outer hatch cover,
a gasket retainer,
a venting gasket comprised of mesh venting material,
and a hydrophobic coating applied to the mesh venting material
and wherein
the venting gasket forms a seal with the outer hatch cover and hatch ring coaming and the hydrophobic coating is applied to an outer surface of the mesh venting material.
7 . The railway hatch cover assembly of claim 6 wherein
the mesh venting material allows the passage of air therethrough.