发明名称 |
A LOG STAIRCASE AND A METHOD OF PRODUCING COMPONENTS FOR A LOG STAIRCASE |
摘要 |
A log staircase is disclosed along with a method of producing components for the log staircase. The log staircase includes an elongated stringer capable of angularly extending from a lower level to an upper level. The stringer has a n outer circumference with a notch formed therein. A protuberance extends upward from the notch. The log staircase also includes a tread having a semicircular periphery with a flat surface. An opening is formed in the semicircular periphery of the tread. The opening is designed to mate with th e protuberance to retain the flat surface crossways to the stringer. The metho d includes cutting a number notches and protuberances in each of a pair of stringers, and cutting a pair of openings in a predetermined number of tread s which are capable of mating with the protuberances to retain each of the treads crossways to the pair of stringers. |
申请公布号 |
CA2640228(A1) |
申请公布日期 |
2009.05.30 |
申请号 |
CA20082640228 |
申请日期 |
2008.10.03 |
申请人 |
THE ARMSTRONG CREEK COMPANY, INC. |
发明人 |
ADAMS, TORREY WYCLISSE;TECKMAN, THOMAS HARVEN |
分类号 |
E04F11/025;E04F11/108 |
主分类号 |
E04F11/025 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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