C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
18/1103, 362/8
C02F 3/28 (2006.01) B29C 41/08 (2006.01) B65D 1/02 (2006.01) E03F 11/00 (2006.01)
Patent
CA 1320621
- 12 - ABSTRACT OF THE DISCLOSURE A spherical septic tank has an upper shell with an internal divider defining a closed internal chamber within the shell. The upper shell is formed by molding the divider wall and a preform of one part of the shell on a main mold. A second preform, completing the shell is molded and cured on a separate mold and then mounted on the preformed assembly on the main mold. The assembly is then sprayed to complete the shell. The result is a shell and divider that are integrally formed, avoiding the cracking and separation problems that occur with bonded in dividers.
609500
Braga Jose F.
Stanton William H.
Battison Williams Dupuis
Equinox Industries Ltd.
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