Valve for safeguarding the outer container of double wall vacuum

Details Valve for safeguarding the outer container of double wall vacuum Valve for safeguarding the outer container of double wall vacuum

1988-08-04

1990-07-03

Marcus, Stephen

Receptacles

Closures

With condition responsive vent or valve

220209, 251332, 251900, B65D 5116

Patent

active

049383760

ABSTRACT:
A valve for safeguarding the outer container of a double wall vacuum-insulated container for low boiling liquified gases against a pressure increase in the insulation space after a loss of vacuum comprises a valve housing fastened in the outer container, a valve plug and an O-ring which, as a result of deformation, act as a sealing element between the valve housing and the valve plug. The dimensions of the valve housing and seal plug causing deformation of the O-ring in the radial direction and the influence of the outside air pressure causing simulataneous deformation in the axial direction.

REFERENCES:
patent: 1375497 (1921-04-01), Eickman
patent: 2537249 (1951-01-01), Walton
patent: 2599622 (1952-06-01), Folmsbee
patent: 2910267 (1959-10-01), Holby
patent: 3202178 (1965-08-01), Wolfe
patent: 3256117 (1966-06-01), Howatt et al.
patent: 3497395 (1970-02-01), Kohen
patent: 4484888 (1984-11-01), Grosslord et al.

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