Method and apparatus for providing a dowell connection to...

Road structure – process – or apparatus – Pavement – Including joint means

Reexamination Certificate

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Details

C404S060000, C404S065000

Reexamination Certificate

active

07441985

ABSTRACT:
First and second cast-in-place concrete slabs are maintained in alignment by cutting a semi-circular groove in an edge surface of the first formed slab, positioning a flat rectangular dowel within the groove so that the dowel extends outwardly from the edge surface, and then casting the second slab against the edge surface to embed the dowel within the second slab. A gasket is engaged with the dowel to seal the groove against the intrusion of fluid concrete as the second cast-in-place. The gasket also serves to space the dowel from the groove to accommodate limited lateral movement of the dowel and groove relative to one another.

REFERENCES:
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patent: 3559541 (1971-02-01), Walstein
patent: 4733513 (1988-03-01), Schrader et al.
patent: 5005331 (1991-04-01), Shaw et al.
patent: 5040350 (1991-08-01), Panther
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patent: 5797231 (1998-08-01), Kramer
patent: 5870869 (1999-02-01), Schrader
patent: 6014849 (2000-01-01), Yonemura
patent: 6145262 (2000-11-01), Schrader et al.
patent: 6354760 (2002-03-01), Boxall et al.
patent: 6926463 (2005-08-01), Shaw et al.
patent: 2006/0127179 (2006-06-01), Nadler
2ndEd.Concrete Floors on Groundby Portland Cement Association, Skokie, IL (1983) (14 pages).
Guide for Concrete Floor and Slab Constructionby American Concrete Institute, Farmington Hills, MI (1997) (17 pages).
Design and Construction of Joints for Concrete Highwaysby American Concrete Pavement Association, Skokie IL (1991) (16 pages).
Design and Construction of Joints for Concrete Streetsby American Concrete Pavement Assoiciation, Skokie, IL (1992) (11 pages).
Plate Dowels for Slabs on Groundby Wayne W. Walker and Jerry A. Holland for Concrete International (Jul. 1998) (4 pages).
A Solution to Cracking and Stresses Caused by Dowels and Tie Barsby Ernest K. Schrader for Concrete International (Jul. 1991) (6 pages).
The Proven Best-Performing Dowel is Now Here! Its Name: Diamond Dowel™by PNA, Matthews, NC (8 pages).

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