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.
Claims20
A block suitable for use in paving, edging or wall applications, the block comprising:
- a top surface opposed from a bottom surface;
- a lower portion having parallel side faces that are spaced apart by a first width and that are substantially perpendicular to the bottom surface;
- an upper portion having parallel side faces that are spaced apart by a second width and that are substantially perpendicular to the top surface, 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;
- wherein the lower portion includes first and second end faces extending between the lower portion side faces, and the upper portion includes first and second end faces extending between the upper portion side faces;
- wherein the transition portion further comprises additional slanted sides extending between the first and second end faces of the lower portion and the upper portion;
- and
- wherein each of the additional slanted sides is generally triangular in shape and includes an outer edge meeting a respective one of the lower portion end faces and an inner edge meeting a respective one of the upper portion end faces, the inner and outer edges intersecting at an acute angle.
A block suitable for use in paving, edging or wall applications, the block comprising:
- a top surface opposed from a bottom surface;
- a lower portion having opposed side faces that are spaced apart by a first width and opposed end faces that are spaced apart by a second width, the faces of the lower portion being substantially perpendicular to the bottom surface;
- an upper portion having opposed side faces that are spaced apart by a third width, the third width being smaller than the first width of the lower portion, and opposed end faces that are spaced apart by a fourth width, the fourth width being smaller than the second width of the lower portion, the side faces of the upper portion being angled relative to the side faces of the lower portion and the end faces of the upper portion being angled relative to the end faces of the lower portion;
- and
- a transition portion between the upper and lower portions having at least one slanted side extending between each respective face of the lower portion and each respective face of the upper portion;
- wherein at least one of the slanted sides of the transition portion is generally triangular in shape and includes an outer edge meeting a respective one of the lower portion faces and an inner edge meeting a respective one of the upper portion faces, the inner and outer edges intersecting at an acute angle.
Dependencies are inferred from the claim text.