Twisted block
AssigneeKeystone Retaining Wall Systems, Inc.
InventorsRobert A. MacDonald, Thomas S. Riccobene
Life of this patent
Estimating the term…
Abstract
A block suitable for use in paving, edging or wall applications comprises a lower portion having parallel, substantially vertical side faces that are spaced apart by a first width, and an upper portion having parallel, substantially vertical side faces that are spaced apart by a second width. The second width is smaller than the first width of the lower portion, and the side faces of the upper portion are angled relative to the side faces of the lower portion. The block further comprises a transition portion between the upper and lower portions, having at least one slanted side extending between one or more sides of the lower portion and one or more sides, respectively, of the upper portion.
Claims29
A block suitable for use in paving, edging or wall applications, the block comprising:
- a lower portion having parallel, substantially vertical side faces that are spaced apart by a first width;
- an upper portion having parallel, substantially vertical side faces that are spaced apart by a second width, the second width being smaller than the first width of the lower portion, the side faces of the upper portion being angled relative to the side faces of the lower portion;
- and
- a transition portion between the upper and lower portions having at least one slanted side extending between one or more sides of the lower portion and one or more sides, respectively, of the upper portion.
A block suitable for use in paving, edging or wall applications, the block comprising:
- a lower portion having parallel, substantially vertical side faces that are spaced apart by a first width;
- an upper portion having parallel, substantially vertical side faces that are spaced apart by a second width, the second width being smaller than the first width of the lower portion, the side faces of the upper portion being angled relative to the side faces of the lower portion;
- and
- a transition portion between the upper and lower portions having at least one slanted side extending between one or more sides of the lower portion and one or more sides, respectively, of the upper portion;
- and
- a gap extending through the lower portion and the transition portion, the gap providing a channel for passage of fluid there through.
Dependencies are inferred from the claim text.