Tank closure assembly

Details Tank closure assembly Tank closure assembly

1978-11-27

1980-10-21

Larson, Lowell A.

Metal working

Method of mechanical manufacture

With testing or indicating

29415, 29463, 113120L, B23Q 1700

Patent

active

042285755

ABSTRACT:
A tank closure assembly adapted to releasably couple tank sections formed by transversely splitting an integral bag-molded fiber-reinforced tank. The assembly includes external 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 band 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.

REFERENCES:
patent: 746440 (1903-12-01), Austin
patent: 1863122 (1932-06-01), Matthews
patent: 2457077 (1948-12-01), Woolsey
patent: 3669474 (1972-06-01), Bode

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