Tank closure assembly

Details Tank closure assembly Tank closure assembly

B - Operations, Transporting

65

D

26/182, 190/9

B65D 6/02 (2006.01) B29C 65/56 (2006.01) B29D 22/00 (2006.01) B65D 1/12 (2006.01) B65D 88/62 (2006.01) B65D 90/08 (2006.01)

Patent

CA 1069067

ABSTRACT OF THE DISCLOSURE A tank closure assembly adapted to releasably couple tank sections formed by transversely splitting an integral bag-molded fiber-reinforced tank. The assembly includes eternal circumferential flanges secured to the tank sections adjacent their severed faces and in opposed relation to each other. An O-ring seal, disposed externally of the tank sections and between the flanges, is compressed into sealing engagement with surrounding surfaces, by tightening of a circumferential bank encircling the flanges, to seal the tank sections at their plane of separation. A method of machining a tank to simultaneously form the split sections and suitable flange receiving grooves thereon is disclosed, as well as a method of pressure-testing the machined tank sections prior to assembly of the flanges and O-ring seal.

290958

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