US5137392A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circular paving stone arrangement
Assignee: Individual
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Filing: 1991-03-28
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Granted: 1992-08-11
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Expires: 2011-03-28
Abstract
Abstract A circular paving stone arrangement is disclosed employing five discrete shapes of molded paving blocks. Two of the molded paving blocks have novel fan-shaped or wedge-shaped forms and are adapted to be used with square, circular, and rectangular blocks in a predetermined sequence in the construction of a unique circular paving stone arrangement. The gap between adjacent sides of adjacent blocks in minimal and thereby reduces any possibility of injury to person or footwear.
Inventors
- 👤 John R. McCoy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:14
CPC Classifications
E; E01; E01C; E01C5/00; E01C2201/00; E01C2201/06; E01C2201/065
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
184 words
A method of constructing a circular paving arrangement from paving blocks of five discrete shapes in a predetermined pattern including the placement of: a central round paving block or two substantially semicircular blocks at the center point of said circular paving arrangement; a first annulus of first fan-shaped blocks having inner and outer arcuate edges, wherein the outer arcuate edge is flattened in the mid-portion thereof, surrounding said first round paving block; a second annulus comprised of said first fan-shaped blocks interspersed with rectangular blocks; a third and fourth annuli comprised of second fan-shaped blocks, said blocks having arcuate inner and outer edges and substantially radial side edges; said side edges being deflected inwardly at substantially their mid-points such that said edges are not of straight line configuration; a fifth and sixth annuli comprised of rectangular blocks and said second fan-shaped paving blocks interspersed with one another; a seventh annulus comprised of rectangular blocks, said second fan-shaped blocks, and square paving blocks interspersed with one another; and an eighth and ninth annuli comprised of said second fan-shaped blocks interspersed with said square paving blocks.
Claim 2
Independent Claim
184 words
A method of constructing a circular paving arrangement from paving blocks of five discrete shapes in a predetermined pattern including the placement of: a central round paving block or two substantially semicircular blocks at the center point of said circular paving arrangement; a first annulus of first fan-shaped blocks having inner and outer arcuate edges, wherein the outer arcuate edge is flattened in the mid-portion thereof, surrounding said first round paving block; a second annulus comprised of said first fan-shaped blocks interspersed with rectangular blocks; a third and fourth annuli comprised of second fan-shaped blocks, said blocks having arcuate inner and outer edges and substantially radial side edges; said side edges being deflected inwardly at substantially their mid-points such that said edges are not of straight line configuration; a fifth and sixth annuli comprised of rectangular blocks and said second fan-shaped paving blocks interspersed with one another; a seventh annulus comprised of rectangular blocks, said second fan-shaped blocks, and square paving blocks interspersed with one another; and an eighth and ninth annuli comprised of said second fan-shaped blocks interspersed with said square paving blocks.
Claim 3
Dependent Claim
20 words
A method as claimed in claim 1 wherein an equal number of blocks are arranged in each of said annuli.
Claim 4
Dependent Claim
122 words
A molded paving block for use with rectangular-shaped blocks in the construction of a circular paving block arrangement, said molded paving block being one of two substantially fan-shaped forms provided with at least one multi-angled edge wherein a first of said fan-shaped blocks comprises: inner and outer arcuate edges of different radii of curvature joined by radial side edges; said outer arcuate edge having a flattened mid-portion extending substantially over the majority of said arcuate outer edge, whereby the chord of each of a left arcuate portion and a right arcuate portion, which are respectively located on either side of said flattened portion of said outer arcuate edge, is equal in length to the chord of 1/2 of said inner arcuate edge.
Claim 5
Dependent Claim
122 words
A molded paving block for use with rectangular-shaped blocks in the construction of a circular paving block arrangement, said molded paving block being one of two substantially fan-shaped forms provided with at least one multi-angled edge wherein a first of said fan-shaped blocks comprises: inner and outer arcuate edges of different radii of curvature joined by radial side edges; said outer arcuate edge having a flattened mid-portion extending substantially over the majority of said arcuate outer edge, whereby the chord of each of a left arcuate portion and a right arcuate portion, which are respectively located on either side of said flattened portion of said outer arcuate edge, is equal in length to the chord of 1/2 of said inner arcuate edge.
Claim 6
Dependent Claim
170 words
A molded paving block for use with rectangular-shaped blocks in the construction of a circular paving block arrangement, said molded paving block being one of two substantially fan-shaped forms provided with at least one multi-angled edge wherein a first of said fan-shaped blocks comprises: an inner and outer arcuate edges of different radii of curvature joined by radial side edges; said outer arcuate edge having a flattened mid-portion extending substantially over the majority of said arcuate outer edge, whereby the chord of each of a left arcuate portion and a right arcuate portion, which are respectively located on either side of said flattened portion of said outer arcuate edge, is equal in length to the chord of 1/2 of said inner arcuate edge; and a second of said fan-shaped blocks comprises: an inner and an outer arcuate edge of the same radii of curvature joined by substantially radial side edges; each side edge being deflected uniformly inwardly near its mid-point, whereby said side edges are not of straight line configuration.
Claim 7
Dependent Claim
170 words
A molded paving block for use with rectangular-shaped blocks in the construction of a circular paving block arrangement, said molded paving block being one of two substantially fan-shaped forms provided with at least one multi-angled edge wherein a first of said fan-shaped blocks comprises: an inner and outer arcuate edges of different radii of curvature joined by radial side edges; said outer arcuate edge having a flattened mid-portion extending substantially over the majority of said arcuate outer edge, whereby the chord of each of a left arcuate portion and a right arcuate portion, which are respectively located on either side of said flattened portion of said outer arcuate edge, is equal in length to the chord of 1/2 of said inner arcuate edge; and a second of said fan-shaped blocks comprises: an inner and an outer arcuate edge of the same radii of curvature joined by substantially radial side edges; each side edge being deflected uniformly inwardly near its mid-point, whereby said side edges are not of straight line configuration.
Claim 8
Dependent Claim
196 words
A molded paved block for use with rectangular-shaped blocks in the construction of a circular paving block arrangement, said molded paving block being one of two substantially fan-shaped forms provided with at least one multi-angled edge wherein a first of said fan-shaped blocks comprises: inner and outer arcuate edges of different radii of curvature joined by radial side edges; said outer arcuate edge having a flattened mid-portion extending substantially over the majority of said arcuate outer edge, whereby the chord of each of a left arcuate portion and a right arcuate portion, which are respectively located on either side of said flattened portion of said outer arcuate edge, is equal in length to the chord of 1/2 of said inner arcuate edge; and a second of said fan-shaped blocks comprises: an inner and an outer arcuate edge of the same radii of curvature joined by substantially radial side edges; each side edge being deflected uniformly inwardly near its mid-point, such that the angle subtended by said side edges below said mid-point is 15° and the angle subtended by said side edges above said mid-point is 11.25°, whereby said side edges are not of straight line configuration.
Claim 9
Dependent Claim
196 words
A molded paved block for use with rectangular-shaped blocks in the construction of a circular paving block arrangement, said molded paving block being one of two substantially fan-shaped forms provided with at least one multi-angled edge wherein a first of said fan-shaped blocks comprises: inner and outer arcuate edges of different radii of curvature joined by radial side edges; said outer arcuate edge having a flattened mid-portion extending substantially over the majority of said arcuate outer edge, whereby the chord of each of a left arcuate portion and a right arcuate portion, which are respectively located on either side of said flattened portion of said outer arcuate edge, is equal in length to the chord of 1/2 of said inner arcuate edge; and a second of said fan-shaped blocks comprises: an inner and an outer arcuate edge of the same radii of curvature joined by substantially radial side edges; each side edge being deflected uniformly inwardly near its mid-point, such that the angle subtended by said side edges below said mid-point is 15° and the angle subtended by said side edges above said mid-point is 11.25°, whereby said side edges are not of straight line configuration.
Claim 10
Dependent Claim
520 words
A circular paving arrangement including molded paving blocks of two substantially fan-shaped forms provided with at least one multi-angled edge wherein a first of said fan-shaped blocks comprises: inner and outer arcuate edges of different radii of curvature joined by radial side edges; said outer arcuate edge having a flattened mid-portion extending substantially over the majority of said arcuate outer edge, and the chord of each of a left arcuate portion and a right arcuate portion, which are respectively located on either side of said flattened portion of said outer arcuate edge, is equal in length to the chord of 1/2 of said inner arcuate edge; and wherein a second of said fan-shaped blocks comprises: an inner and an outer arcuate edge of the same radii of curvature joined by substantially radial side edges; each side edge being deflected uniformly inwardly near its mid-point, whereby said side edges are not of straight line configuration; said circular paving arrangement comprising: a central round paving block and nine circumferential annuli of increasing radii wherein: a first annulus consists of eight of said first fan-shaped blocks; a second annulus consists of eight of said first fan-shaped blocks and eight rectangular blocks; a third annulus consists of twenty-four of said second fan-shaped blocks; a fourth annulus consists of thirty-two of said second fan-shaped blocks; a fifth annulus consists of twenty of said second fan-shaped blocks and twenty of said rectangular blocks; a sixth annulus consists of twenty-four of said second fan-shaped blocks and twenty-four of said rectangular blocks; said outer arcuate edge having a flattened mid-portion extending substantially over the majority of said arcuate outer edge, and the chord of each of a left arcuate portion and a right arcuate portion, which are respectively located on either side of said flattened portion of said outer arcuate edge, is equal in length to the chord of 1/2 of said inner arcuate edge; and wherein a second of said fan-shaped blocks comprises: an inner and an outer arcuate edge of the same radii of curvature joined by substantially radial side edges; each side edge being deflected uniformly inwardly near its mid-point, whereby said side edges are not of straight line configuration; said circular paving arrangement comprising: a central round paving block and nine circumferential annuli of increasing radii wherein a first annulus consists of eight of said first fan-shaped blocks; a second annulus consists of eight of said first fan-shaped blocks and eight rectangular blocks; a third annulus consists of twenty-four of said second fan-shaped blocks; a fourth annulus consists of thirty-two of said second fan-shaped blocks; a fifth annulus consists of twenty of said second fan-shaped blocks and twenty of said rectangular blocks; a sixth annulus consists of twenty-four of said second fan-shaped blocks and twenty-four of said rectangular blocks; a seventh annulus consists of twenty-seven of said second fan-shaped blocks, eighteen of said rectangular blocks, and nine square blocks; an eighth annulus consists of twenty-eight of said second fan-shaped blocks and twenty-eight of said square blocks; and a ninth annulus consists of thirty-two of said second fan-shaped blocks and thirty-two of said square blocks.
Claim 11
Dependent Claim
520 words
A circular paving arrangement including molded paving blocks of two substantially fan-shaped forms provided with at least one multi-angled edge wherein a first of said fan-shaped blocks comprises: inner and outer arcuate edges of different radii of curvature joined by radial side edges; said outer arcuate edge having a flattened mid-portion extending substantially over the majority of said arcuate outer edge, and the chord of each of a left arcuate portion and a right arcuate portion, which are respectively located on either side of said flattened portion of said outer arcuate edge, is equal in length to the chord of 1/2 of said inner arcuate edge; and wherein a second of said fan-shaped blocks comprises: an inner and an outer arcuate edge of the same radii of curvature joined by substantially radial side edges; each side edge being deflected uniformly inwardly near its mid-point, whereby said side edges are not of straight line configuration; said circular paving arrangement comprising: a central round paving block and nine circumferential annuli of increasing radii wherein: a first annulus consists of eight of said first fan-shaped blocks; a second annulus consists of eight of said first fan-shaped blocks and eight rectangular blocks; a third annulus consists of twenty-four of said second fan-shaped blocks; a fourth annulus consists of thirty-two of said second fan-shaped blocks; a fifth annulus consists of twenty of said second fan-shaped blocks and twenty of said rectangular blocks; a sixth annulus consists of twenty-four of said second fan-shaped blocks and twenty-four of said rectangular blocks; said outer arcuate edge having a flattened mid-portion extending substantially over the majority of said arcuate outer edge, and the chord of each of a left arcuate portion and a right arcuate portion, which are respectively located on either side of said flattened portion of said outer arcuate edge, is equal in length to the chord of 1/2 of said inner arcuate edge; and wherein a second of said fan-shaped blocks comprises: an inner and an outer arcuate edge of the same radii of curvature joined by substantially radial side edges; each side edge being deflected uniformly inwardly near its mid-point, whereby said side edges are not of straight line configuration; said circular paving arrangement comprising: a central round paving block and nine circumferential annuli of increasing radii wherein a first annulus consists of eight of said first fan-shaped blocks; a second annulus consists of eight of said first fan-shaped blocks and eight rectangular blocks; a third annulus consists of twenty-four of said second fan-shaped blocks; a fourth annulus consists of thirty-two of said second fan-shaped blocks; a fifth annulus consists of twenty of said second fan-shaped blocks and twenty of said rectangular blocks; a sixth annulus consists of twenty-four of said second fan-shaped blocks and twenty-four of said rectangular blocks; a seventh annulus consists of twenty-seven of said second fan-shaped blocks, eighteen of said rectangular blocks, and nine square blocks; an eighth annulus consists of twenty-eight of said second fan-shaped blocks and twenty-eight of said square blocks; and a ninth annulus consists of thirty-two of said second fan-shaped blocks and thirty-two of said square blocks.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-08-11 | 1996-02-10 | 1996-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-08-11 | 2000-02-10 | 2000-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-08-11 | 2004-02-10 | 2004-08-11 | $7700.00 | Window Closed / Lapsed |