Refrigerated storage tank roof connection

Details Refrigerated storage tank roof connection Refrigerated storage tank roof connection

1984-04-09

1986-04-15

Pollard, Steven M.

Receptacles

Receptacle having flexible, removable inner liner

Means for venting air trapped between the liner and its...

220421, 220901, B65D 9006

Patent

active

045822212

ABSTRACT:
In a storage tank having at least a fixed exterior roof through which a pipe connection extends for feeding or removing a fluid from the tank, the improvement comprising a pipe connection including a pipe extending through an oversized hole in the roof; a sleeve, surrounding but spaced outwardly from the pipe, extending through the roof hole and connected to the roof around the hole; the sleeve having an upper end spaced upwardly above the roof and connected to the pipe; the sleeve having a lower end spaced below the roof and unattached to the pipe; granular insulation occupying the space between the sleeve and the pipe; and a barrier preventing the granular insulation from flowing out the sleeve lower end.

REFERENCES:
patent: 3272579 (1966-09-01), Leonard
patent: 3446387 (1969-05-01), Webb
patent: 3666132 (1972-05-01), Yamamoto et al.
patent: 4461399 (1984-07-01), Sattelberg et al.

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