Differential pressure metering and dispensing system for abrasiv

Details Differential pressure metering and dispensing system for abrasiv Differential pressure metering and dispensing system for abrasiv

1994-04-18

1995-04-18

Kisliuk, Bruce M.

Abrading

Machine

Sandblast

451101, B24C 700

Patent

active

054073790

ABSTRACT:
Improvements to blast cleaning apparatus, and particularly to a media control device which contains a fixed orifice placed between the abrasive supply pot and a media outlet to the compressed air line to meter the media flow into the air line and means to maintain a positive pressure differential between the supply pot and the air line further includes a means to equalize the pressure between the air line and a media passage immediately below the orifice. An additional improvement comprises adding a flow straightening device upstream of a bend in the air line so as to reduce back-mixing in the bend and consequently the turbulence of air downstream of the bend and across the media outlet into the air line.

REFERENCES:
patent: 2200587 (1937-02-01), Tirrell
patent: 3201901 (1963-09-01), Pauli
patent: 3793778 (1974-02-01), Price
patent: 4387020 (1983-06-01), Hill
patent: 5081799 (1992-01-01), Kirschner et al.
patent: 5083402 (1992-01-01), Kirschner et al.
patent: 5101847 (1992-04-01), Oribe
patent: 5230185 (1993-07-01), Kirschner et al.
patent: 5283990 (1994-02-01), Shank, Jr.

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