Retaining wall block

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Description

FIG. 1 is an isometric view of the retaining wall block of the present invention showing the front, left, and bottom faces.

FIG. 2 is an isometric view of the retaining wall block depicted in FIG. 1 showing the top, rear, and left faces.

FIG. 3 is an top plan view of the retaining wall block depicted in FIG. 1.

FIG. 4 is an bottom plan view of the retaining wall block depicted in FIG. 1.

FIG. 5 is an elevational front view of the retaining wall block depicted in FIG. 1.

FIG. 6 is an elevational side view of the retaining wall block depicted in FIG. 1, the opposite side being a mirror image thereof; and,

FIG. 7 is an elevational rear view of the retaining wall block depicted in FIG. 1.

Referenced Cited
U.S. Patent Documents
D411315 June 22, 1999 Bott
4229123 October 21, 1980 Heinzmann
5161918 November 10, 1992 Hodel
5505034 April 9, 1996 Dueck
5791827 August 11, 1998 Arvai et al.
5865066 February 2, 1999 Dawson
Other references
  • "consolidation procedures", figs. 3.2.1 and 3.2.2, p. 46 of Architectural Precast Concrete by the Prestressed Concrete Insistitute, Chicago Ill, 1973. Diamond Wall System, American Masonry Products broshure. patent shoe , 1989 .
Patent History
Patent number: D430308
Type: Grant
Filed: Nov 19, 1998
Date of Patent: Aug 29, 2000
Assignee: Keystone Retaining Wall Systems (Edina, MN)
Inventor: William B. Dawson (Maple Grove, MN)
Primary Examiner: Louis S. Zarfas
Assistant Examiner: Robert A. Delehanty
Law Firm: Dorsey & Whitney LLP
Application Number: 0/96,772
Classifications
Current U.S. Class: Construction Block Or Brick Type (17) (D25/113)
International Classification: 2501;