Floating roofs with magnetic seals

Details Floating roofs with magnetic seals Floating roofs with magnetic seals

1979-05-04

1981-07-07

Pollard, Steven M.

Receptacles

Closures

Floating closure

220222, B65D 8844

Patent

active

042769914

ABSTRACT:
The closure of the rim space between the floating roof periphery and the tank shell is effected by a permanently magnetized circular strip and a circular curtain. The magnetized strip is held by magnetic pull against the shell.
Linkage means between the floating roof and the magnetized strip cause the latter to follow the vertical displacements of the former.

REFERENCES:
patent: 2650738 (1953-09-01), Ulm
patent: 3033413 (1962-05-01), Fino et al.
patent: 3204808 (1965-09-01), Cadwell
patent: 3204809 (1965-09-01), Cadwell

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