Mold for casting monolithic spherical tanks
United States Patent 2632226
US Patent References:
/0750468.html
- - 0750468

/1023465.html
- - 1023465

/1189694.html
- - 1189694

/1272886.html
- - 1272886

Large-sized oil tank
- - 1508145


Inventors:
Anderson, Arthur R.
Publication Date:
03/24/1953
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Assignee:
Anderson, Arthur R.
Primary Class:
249/149
Other Classes:
52/20, 52/192, 249/181
International Classes:
B28B7/16; B28B7/30; E04G11/04; B28B7/28; E04G11/00
US Patent References:
1535023Sectional mold for concrete structures
1913178Molding apparatus
2278089Form for septic tanks
2413243Storage tank and method of constructing same
2495100Apparatus for making precast concrete units
Foreign References:
DE246046C