Material transfer system

Details Material transfer system Material transfer system

1986-08-28

1989-09-05

Schmidt, Frederick R.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

414221, 406 25, 406169, B24B 700

Patent

active

048626490

ABSTRACT:
A material transfer system is provided having particular utility in cooperation with a liquid jet abrasive cutting system in which a continuous supply of abrasive, particulate material is required for abrasive cutting operations. Primary and secondary hoppers are provided for containing the abrasive particulate material, and the secondary hopper is suitably located at a position adjacent to the work station and remote from the primary hopper. The secondary hopper is provided with a first chamber and a second, lower chamber positioned beneath the first chamber. Means for evacuating the first chamber but not the second chamber is provided, and a check valve communicates between the upper and lower chambers for preventing communication between the upper and lower chambers upon the evacuation of the upper chamber; when open, the valve provides communication to the lower chamber, under normal atmospheric pressure, in response to the presence of a supply of abrasive, particulate material within the upper chamber portion.

REFERENCES:
patent: 2193738 (1940-03-01), Perrin
patent: 3727985 (1973-04-01), Reuter
patent: 3858733 (1975-01-01), Morioka et al.
patent: 3994097 (1976-11-01), Lamb

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