Dowels for jointed concrete and methods of forming and using the same

• US 9,611,593 B2
• Filed: 10/24/2016
• Issued: 04/04/2017
• Est. Priority Date: 07/21/2014
• Status: Active Grant

• Current Assignee: Christopher P. Schenk
• Original Assignee: Christopher P. Schenk
• Inventors: Schenk, Christopher P.
• Primary Examiner(s): Addie, Raymond W
• Application Number:
  US15/332,637
• Publication Number:
  US 20170067212A1
• Time in Patent Office: 162 Days
• Field of Search: 404 56- 67
• CPC Class Codes: B21C 37/08 Making tubes with welded or soldered seams with helically arranged seams B21C37/122
• CPC Class Codes: E01C 11/04 for cement concrete paving E01C9/001 takes precedence
• CPC Class Codes: E01C 11/06 Methods of making joints
• CPC Class Codes: E01C 11/14 Dowel assembly ; Design or construction of reinforcements in the area of joints coupling devices for prefabricated units E01C5/005; combined with characteristic packings E01C11/08 - E01C11/12; removable holders E01C23/045
• CPC Class Codes: E01C 11/20 for prestressed concrete pavings from prefabricated concrete units, similar prestressed units E01C5/10
• CPC Class Codes: E01C 5/003 characterised by material or composition used for beds or joints; characterised by the way of laying
• CPC Class Codes: E01C 7/147 Repairing concrete pavings, e.g. joining cracked road sections by dowels, applying a new concrete covering applying thin surface layers with other binder E01C7/35; repairing pavings in general E01C11/005; roughening by means of tools E01C11/24
• CPC Class Codes: E04B 1/483 Shear dowels to be embedded in concrete

Abstract

A concrete dowel tube made of carbon steel comprises a welded longitudinal seam.

Claims

1. A dowel for forming jointed concrete pavement, the dowel comprising a welded seam carbon steel hollow tube and a pair of end caps, the end caps being attached to opposite axial ends of the hollow tube, the endcaps extending into the hollow tube and extending diametrically not beyond the hollow tube, the hollow tube having an internal axial passageway and an outer cylindrical surface, the end caps partially extending into the axial passageway of the hollow tube and having an outer most diameter that is less than or equal to the diameter of the cylindrical outer surface of the hollow tube and that is greater than the diameter of the axial passageway of the hollow tube.

2. The dowel of claim 1 wherein the end caps are formed of a polymeric material.