Method and apparatus for charging bulk material to a plurality o

Details Method and apparatus for charging bulk material to a plurality o Method and apparatus for charging bulk material to a plurality o

Filed on

1975-08-27

Date issued

1978-04-04

Examiner

Blunk, Evon C.

Patent Class

Cutlery

Other Related Categories

302 42, B65G 5304

Type

Patent

Status

active

Patent number

040823644

Description

ABSTRACT:
A method of pneumatically feeding material in succession, through separators, to receiving stations, with conveying air being discharged from the system only at the last separator in the circuit. Conveying is stopped when the material reaches a predetermined level in the last separator, but commences again when the material falls below that level, which can be achieved by feeding material back through the conduit to the feed station. The apparatus has a series of separators, the last of which filters out exhaust air, with valves responsive to the level of material in the last separator or a pressure rise in the conduit, to stop conveying and to blow back through the conduit to clear the last separator.

REFERENCES:
patent: 2895768 (1959-07-01), Bray
patent: 3069205 (1962-12-01), McIver et al.
patent: 3414330 (1968-12-01), Trutzschler
patent: 3694037 (1972-09-01), Feder
patent: 3836288 (1974-09-01), Evans

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