Patent ID: 9476167
Filing Date: 2016-10-25
CPC Classification: E01C

Claim Text:
1. A structure for use in semi-permanent walkways on soft terrain, comprising: first and second walkway sections, each walkway section comprising a decking portion comprising a lower surface, sides, and two longitudinal ends at least one of which is a mating end, substantially parallel support rails extending substantially the full length of the walkway section along the lower surface between the two longitudinal ends, each support rail comprising an end adjacent the mating end and further comprising spaced sidewalls extending downwardly away from the lower surface of the decking portion, the spaced sidewalls terminating in spaced terminal edges defining a substantially lowermost portion of each walkway section, each support rail further defining alone or in combination with the lower surface of the decking portion a generally U-shaped downwardly-facing open cross-section along substantially the entire length of the support rail; generally U-shaped splicers shorter than the support rails and comprising first ends mated with respective ends of at least some of the support rails at the mating end of the first walkway section, and comprising second ends extending beyond the mating end of the first walkway section and the respective ends of the support rails to which they are mated and mating with corresponding ends of corresponding support rails on the mating end of the second walkway section such that the second walkway section is mated with the first walkway section at the support rails by the splicers longitudinally bridging the first and second walkway sections, the splicers each comprising generally U-shaped members comprising spaced sidewalls joined by a perforated bottom wall and spaced to fit within or over the sidewalls of the respective and corresponding ends of the support rails to which they are mated on the first and second walkway sections with the perforated bottom wall spaced from the lower surfaces of the decking portions and substantially even with the terminal edges of the support rail sidewalls, the perforated bottom wall comprising openings configured to freely admit soft terrain to substantially fill the splicer when the joined walkway sections are face down on soft terrain; wherein the support rails of each walkway section comprise two outer support rails and an inner support rail between the outer support rails; wherein the outer support rails of the first and second walkway sections are each joined by one of the splicers secured longitudinally to the respective and corresponding ends of the outer support rails at the mating ends of the walkway sections, and the inner support rails of the first and second walkway sections are joined by one of the splicers secured longitudinally to the respective or corresponding end of the inner support rail of one of the first and second walkway sections at its mating end and secured laterally but not longitudinally to the respective or corresponding end of the inner support rail of the other of the first and second walkway sections at its mating end; wherein each outer support rail is joined by an outer splicer comprising first and second ends secured to the respective and corresponding ends of the outer support rails of the first and second walkway sections with one or more cross-members extending through the sidewalls of each of the outer support rails and the outer splicer first and second ends, and wherein the inner support rails are joined by an inner splicer comprising a first end having an open-ended longitudinal slot formed in each sidewall thereof, and further wherein the inner support rail on a mating end of one of the first and second walkway sections includes an inner cross-member received longitudinally in the open-ended longitudinal slot on the inner splicer.