Three faceted broken front face of a retaining wall block

Description

FIG. 1 is a perspective view of a three faceted broken front face of a retaining wall block showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a side elevational view thereof, the opposite side being a mirror image thereof;

FIG. 7 is a perspective view of a second embodiment of a three faceted broken front face of a retaining wall block showing my new design;

FIG. 8 is a top plan view of FIG. 7;

FIG. 9 is a bottom plan view of FIG. 7;

FIG. 10 is a front elevational view of FIG. 7;

FIG. 11 is a rear elevational view of FIG. 7;

FIG. 12 is a side elevational view of FIG. 7, the opposite side being a mirror image thereof;

FIG. 13 is a perspective view of a three faceted broken front face of a retaining wall block showing my new design;

FIG. 14 is a top plan view of FIG. 13;

FIG. 15 is a bottom plan view of FIG. 13;

FIG. 16 is front elevational view of FIG. 13;

FIG. 17 is a rear elevational view of FIG. 13; and,

FIG. 18 is a side elevational view of FIG. 13, the opposite side being a mirror image thereof.

The broken lines in the drawings illustrate modifications of retaining wall blocks that include the broken front face of the design.

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Other references
  • Keystone Retaining Wall Systems, "Take Your First Look at the Ultimate in Retaining Wall Systems. Keystone" (1986). The Besser Company brochure, "Modular Concrete Block", 1984. The Besser Company brochure, "Paving Stone", Jun., 1984. The Hollow Building Tile Assoc. Handbook, p. 11, Jan. 1924. Concrete Masonry Pictorial, vol. 33, No. 36, p. 35, 1977. The Besser Company brochure "Modular Concrete Block", 1984. The Besser Company brochure, "Paving Stone", Jun. 1984. Keystone Specifications and Installation Guidelines; 1986 Building Stone Walls; by John Vivian; 1976. Keystone Retaining Wall Systems Publication dated 1986, p. 2, upper right corner of pg. tap traucated block. Diamond Wall System dated 1988 block illustration center left side of page. The Besser Company Bulletin, Feb. 1985.
Patent History
Patent number: D380560
Type: Grant
Filed: May 21, 1992
Date of Patent: Jul 1, 1997
Assignee: Keystone Retaining Wall Systems, Inc. (Edina, MN)
Inventor: Paul J. Forsberg (Edina, MN)
Primary Examiner: Doris Clark
Law Firm: Dorsey & Whitney LLP
Application Number: 7/886,983
Classifications
Current U.S. Class: Construction Block Or Brick Type (17) (D25/113)
International Classification: 2501;