Method of installing interface pad on concrete ties
Assigneevoestalpine Nortrak Inc.
InventorsSteven R Mattson, Scott D. Lesher, Perry E. Nuernberger
Life of this patent
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Abstract
An interface pad for a concrete tie includes a resilient contact pad to cushion the tie from any overlying parts in a railway application, such as panels in a grade crossing or rails in a turnout. The pad may be flat or a cupped shape and may be of varying size to accommodate varying tie widths. The invention further comprises means and methods to correctly secure such an interface pad to a concrete railroad tie and minimize the possibility that the interface pad will be forcibly removed from the tie during installation of the tie.
Claims4
A method of manufacturing a concrete tie having an embedded interface pad, comprising the steps of:
- providing at least one interface pad comprising a tubular body having opposed first and second ends separated by a sidewall and a contact pad on said second end;
- providing a template comprising at least one opening;
- placing said interface pad into said opening such that said second end abuts said template and said contact pad fits within said opening;
- placing said template and said interface pad in a concrete tie form;
- casting said concrete tie around said template and said interface pad such that said contact pad protrudes from said tie;
- and
- removing said template from said tie once said concrete has hardened.
Dependencies are inferred from the claim text.