Receptacles – Outlet or junction box type – Sectional receptacle
Patent
1977-12-06
1981-12-29
Pollard, Steven M.
Receptacles
Outlet or junction box type
Sectional receptacle
52608, B65D 2102
Patent
active
043078141
ABSTRACT:
Unit panels for constructing tanks and tanks so constructed. The panels include a rectangular plate and four connecting rims. The connecting rims are provided on the four sides of the rectangular plate and extend in the same direction with respect thereto. The forward ends, or edges, of the connecting rims define a flat plane which is perpendicular with respect to the connecting rims; the rectangular plate being inclined with respect to the flat plane and at least two of the connecting rims have rectangular shapes.
Various embodiments of the unit panels are provided and include panels wherein two opposing connecting rims are rectangular, the remaining opposing rims being trapezoidal; panels wherein two adjacent connecting rims are rectangular, the remaining adjacent rims being trapezoidal; and panels wherein the rectangular plate is recessed or projections extending in a direction opposite to that of the connecting rims are provided on the rectangular plate.
Storage tanks constructed from the unit panels have inclined bottom portions to facilitate draining and can be provided with inclined sidewalls.
REFERENCES:
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patent: 1864153 (1932-06-01), Solon
patent: 2222908 (1940-11-01), King
patent: 2395685 (1946-02-01), Schmitz, Jr.
patent: 3000134 (1961-09-01), Marini
patent: 3034254 (1962-05-01), Christiansen
patent: 3064770 (1962-11-01), Andrews
patent: 3426937 (1969-02-01), Boschi et al.
patent: 3460704 (1969-08-01), Moore et al.
patent: 3568387 (1971-03-01), Grabow
patent: 3783570 (1974-01-01), Storch
patent: 4050605 (1977-09-01), Wakana et al.
Smith System, Lectern Desks and Speaker Stands, pp. A-D, received in the Patent and Trademark Office 7/6/71.
Pollard Steven M.
Sekisui Koji Kabushiki Kaisha
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