Retaining wall block

- Handy-Stone Corporation

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Description

FIG. 1 is a perspective view as seen from the top, front and one side of a retaining wall block showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a side elevational view, as seen from the right side of FIG. 2 thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a side elevational view as seen from the side opposite that shown in FIG. 3 thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D295788 May 17, 1988 Forsberg
D319885 September 10, 1991 Blomquist et al.
D321060 October 22, 1991 Blomquist et al.
D341215 November 9, 1993 Blomquist et al.
D346667 May 3, 1994 Blomquist et al.
D350402 September 6, 1994 Pribyl et al.
1419805 June 1922 Bigler
1795451 March 1931 Sharpe
2313363 March 1943 Schmitt
4229123 October 21, 1980 Heinzmann
4335549 June 22, 1982 Dean, Jr.
5017049 May 21, 1991 Sievert
5031376 July 16, 1991 Bender et al.
5062610 November 5, 1991 Woolford et al.
Other references
  • Minitalus.sup.MC Universel.sup.MC, Permacon, Apr. 1993. Aztech Wall System, "Tradition and Technology", Block Systems, Incorporated, 1989. Precast Concrete Retaining Walls, RISI Stone Ltd., 1988. Windsor Stone.RTM., Block Systems, Inc. 1991. Tech Spec.RTM., Diamond Wall System, Anchor Block/Oscar Roberts, Sep. 1988. Garden Wall.TM., KeyStone.TM. Retaining Wall Systems, 1991.
Patent History
Patent number: D429004
Type: Grant
Filed: May 10, 1996
Date of Patent: Aug 1, 2000
Assignee: Handy-Stone Corporation (North St. Paul, MN)
Inventors: Todd P. Strand (Marine on St. Croix, MN), Peter J. Blomquist (Lake Elmo, MN)
Primary Examiner: Raphael Barkai
Law Firm: Kinney & Lange, P.A.
Application Number: 0/54,175
Classifications
Current U.S. Class: Construction Block Or Brick Type (17) (D25/113)
International Classification: 2501;