Combination sand-blasting and vacuum apparatus

Details Combination sand-blasting and vacuum apparatus Combination sand-blasting and vacuum apparatus

1980-07-28

1982-06-08

Godici, Nicholas P.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51427, 51438, B24C 302

Patent

active

043332773

ABSTRACT:
A sand-blasting apparatus which is operated by a vacuum system, wherein there is provided a sand-blasting gun having an air-inlet passage and a sand-inlet passage. Air is discharged into a mixing chamber, creating a vacuum therein to suck sand through the sand-inlet passage, and to discharge the sand under high-velocity so as to impinge against the surface to be sanded, the sand being captured within the enclosed discharge end of the gun and then returned to the sand-storage tank under a return vacuum arrangement defined by a continuous low-vacuum flow and a controlled high-vacuum flow, the high-vacuum flow being activated when the trigger valve of the gun is operated.

REFERENCES:
patent: 2332281 (1943-10-01), Van der Pyl
patent: 2455514 (1948-12-01), Mead
patent: 2723498 (1955-11-01), Hastrup et al.
patent: 2840955 (1958-07-01), Hastrup et al.
patent: 3624967 (1971-12-01), Kamper et al.

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