Dispensing – With flow controller or closure – With interior material guide or restrictor
Patent
1977-06-29
1982-12-28
Bartuska, F. J.
Dispensing
With flow controller or closure
With interior material guide or restrictor
193 12, 414299, B65D 8306
Patent
active
043657303
ABSTRACT:
A pressure relief device for use in a storage elevator for reducing the dynamic pressure imposed on the walls of a storage elevator during a discharging operation which includes a screw which extends longitudinally along the interior of the storage elevator and in spaced relationship to the vertically extending side walls of the elevator. The screw may be fixed or rotatably mounted.
REFERENCES:
patent: 808856 (1906-01-01), Melton
patent: 1928459 (1933-09-01), Pardee
patent: 3055550 (1962-09-01), Smith et al.
patent: 3278054 (1966-10-01), Stott
patent: 3782642 (1974-01-01), Trafford
patent: 3940037 (1976-02-01), Watson
Bartuska F. J.
Fattibene Arthur T.
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