Delta culvert

Details Delta culvert Delta culvert

1975-11-05

1977-03-15

Shapiro, Jacob

Pipes and tubular conduits

Repairing

52284, 138155, 138177, 403382, E02B 1100, F16L 922

Patent

active

040117260

ABSTRACT:
This invention provides an all-wooden culvert shaped as an equilateral triangle in which the three sides are joined solely by interlocking of the structural members in notches in each member. All sides are composed of a series of identical members which feature facilitates member fabrication and allows for culvert installation by unskilled labor.

REFERENCES:
patent: 445994 (1891-02-01), Harris
patent: 903572 (1908-11-01), Houghton
patent: 1779325 (1930-10-01), Manning
patent: 2359450 (1944-10-01), Spaulding et al.
patent: 2657713 (1953-11-01), Jensen

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