Ozone and Chemical Resistant Coating for Railway Line Elastomeric Components

a technology of elastomeric components and ozone, which is applied in the field of surface coatings, can solve the problems of bending stress, premature failure, and wear of panels, and achieve the effects of improving weatherability, ozone, impact, abrasion and oil resistance characteristics

a technology of elastomeric components and ozone, which is applied in the field of surface coatings, can solve the problems of bending stress, premature failure, and wear of panels, and achieve the effects of improving weatherability, ozone, impact, abrasion and oil resistance characteristics

US20070200005A1Inactive Publication Date: 2007-08-30S & B TECHN PRODS
31 Cites 28 Cited by

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Ozone and Chemical Resistant Coating for Railway Line Elastomeric Components
  • Ozone and Chemical Resistant Coating for Railway Line Elastomeric Components
  • Ozone and Chemical Resistant Coating for Railway Line Elastomeric Components

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] Referring now to FIG. 1 of the drawings, there is shown a railway grade crossing, designated generally as 10. The crossing 10 includes a railroad track 12 having parallel rails 14, 16 supported on cross ties 18, which are typically set into ballast. The ties 18 are preferably of concrete but could be of wood or other material. A road 20 for vehicular traffic is shown crossing the railway track 12. Concrete filler panels 24 and 26 have respective upper surfaces 28 and 30 located at substantially the same height as the upper surface 32 of the road 20 on either side of the crossing 10. In the particular grade crossing 10 shown in FIG. 1 the road 20 is sufficiently wide such that two wide panels 24 arranged end-to-end are needed between the rails 14 and 16. Similarly, on each side of the track 12 two smaller side panels 26 have been placed end-to-end outside the rails 14 and 16 with their upper surfaces 30 aligned with the road surface 32 of the road 20. In constructing the grade...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Elastomeric pads are shown for positioning on top of railroad ties. Pre-cast concrete panels that are commonly provided at railway grade crossings between and alongside the rails rest on the pads. The pads may be extruded from a variety of natural or synthetic elastomeric materials. The pads include a panel or body formed of the elastomeric material with an exterior surface. A synthetic, polymeric coating is applied to at least selected portions of the exterior surface of the elastomeric body. The coating provides improved properties which allow more standard elastomers to be utilized for the main body of the component. The coatings can also be applied to railroad tie boots to provide increased ozone resistance.

Description

CROSS REFERENCE TO RELATED APPLICATIONS [0001] The present application claims priority from the earlier filed provisional application, serial number 60 / 776,380, filed Feb. 24,2006, entitled “Impact, Abrasion and Chemical Resistant Coating For Railway Line Pads and Boots.”BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates to surface coatings which provide enhanced performance properties for elastomeric components used in railway line emplacements including railway line pads and boots and to goods produced with such coatings. Specifically preferred coatings are used to provide improved weathering, anti-vibration, abrasion and oil and chemical resistance characteristics for such goods. The invention also relates to assemblies of rails, pads, boots and rail foundation members when secured together in a railway line emplacement. [0004] 2. Description of the Prior Art [0005] A variety of rubber or elastomeric type goods are used in the railro...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
30 Aug 2007
Publication
US20070200005A1
IPC
E01B9/38
CPC
E01B3/28; E01C9/04; E01B19/003
Inventors
CORBETT, BRADFORD G. JR.; HIRST, JAMES RICHARD