CA2402523A1 - Rail pad & method for strain attentuation - Google Patents

Rail pad & method for strain attentuation Download PDF

Info

Publication number
CA2402523A1
CA2402523A1 CA 2402523 CA2402523A CA2402523A1 CA 2402523 A1 CA2402523 A1 CA 2402523A1 CA 2402523 CA2402523 CA 2402523 CA 2402523 A CA2402523 A CA 2402523A CA 2402523 A1 CA2402523 A1 CA 2402523A1
Authority
CA
Canada
Prior art keywords
pad
recesses
attentuation
strain
normal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA 2402523
Other languages
French (fr)
Other versions
CA2402523C (en
Inventor
Philip Jeffrey Mcqueen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CA 2402523 priority Critical patent/CA2402523C/en
Priority to CA002475976A priority patent/CA2475976A1/en
Publication of CA2402523A1 publication Critical patent/CA2402523A1/en
Application granted granted Critical
Publication of CA2402523C publication Critical patent/CA2402523C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B9/00—Fastening rails on sleepers, or the like
    • E01B9/68—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B9/00—Fastening rails on sleepers, or the like
    • E01B9/68—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair
    • E01B9/685—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair characterised by their shape
    • E01B9/686—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair characterised by their shape with textured surface

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Railway Tracks (AREA)

Abstract

An apparatus for use as a pad and for placement intermediate a rail and a railroad tie includes a plurality of geometrical recesses that extend into the pad, either at a normal longitudinal axis or at an angle other than normal.
An elastomeric material is used to form the pad. The recesses may include any geometric shape in plan at the surface of the pad. If desired, a tiered structure, is provided for any of the recesses. According to a modification, any of the recesses are modified to include a longitudinal axis that is not normal. The modified recesses include any geometrical, polygonal, circular, or oval shape in plan at the surface of the pad.
CA 2402523 2002-10-09 2002-10-09 Rail pad & method for strain attentuation Expired - Fee Related CA2402523C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA 2402523 CA2402523C (en) 2002-10-09 2002-10-09 Rail pad & method for strain attentuation
CA002475976A CA2475976A1 (en) 2002-10-09 2002-10-09 Rail pad and method for strain attenuation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2402523 CA2402523C (en) 2002-10-09 2002-10-09 Rail pad & method for strain attentuation

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA002475976A Division CA2475976A1 (en) 2002-10-09 2002-10-09 Rail pad and method for strain attenuation

Publications (2)

Publication Number Publication Date
CA2402523A1 true CA2402523A1 (en) 2002-12-21
CA2402523C CA2402523C (en) 2005-05-03

Family

ID=4171212

Family Applications (2)

Application Number Title Priority Date Filing Date
CA 2402523 Expired - Fee Related CA2402523C (en) 2002-10-09 2002-10-09 Rail pad & method for strain attentuation
CA002475976A Abandoned CA2475976A1 (en) 2002-10-09 2002-10-09 Rail pad and method for strain attenuation

Family Applications After (1)

Application Number Title Priority Date Filing Date
CA002475976A Abandoned CA2475976A1 (en) 2002-10-09 2002-10-09 Rail pad and method for strain attenuation

Country Status (1)

Country Link
CA (2) CA2402523C (en)

Also Published As

Publication number Publication date
CA2402523C (en) 2005-05-03
CA2475976A1 (en) 2002-12-21

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