Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1976-08-26
1978-03-28
Smith, Gary L.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
B24C 700
Patent
active
040807622
ABSTRACT:
A fluid-abrasive nozzle adapted for use as a controlled discharge means in combination with a high-pressure system for discharging a fluid-abrasive stream at a high velocity, whereby unwanted material on a given surface can be removed, or wherein the texture or physical characteristics of such surface can be altered by the controlled discharge from the nozzle, the nozzle being removably mounted to a gun-like support handle. Fluid under high pressure and flow is pumped through a pressure port in the main body and through a plurality of controlled-diameter orifices positioned annularly about a discharge ring in an inclined plane, whereby the fluid passing therethrough converges toward a common point downstream thereof. The high-velocity fluid streams leaving the front of the discharge ring pass through respective clearance holes formed in a centrally disposed piston whereby a venturi effect and resulting negative pressure are created by the cone-shaped spray formed by the converging fluid streams. This negative pressure allows the abrasive or other agents to be drawn through the central passage of the piston, thereby introducing the abrasive into the fluid streams to intermediate and produce an effective blasting pattern of the desired size and shape.
REFERENCES:
patent: 1171286 (1916-02-01), Wadsworth
patent: 2376616 (1945-05-01), Oechsle
patent: 2717476 (1955-09-01), Myers
patent: 3069812 (1962-12-01), Shelton
patent: 3690067 (1972-09-01), Goss
patent: 3828478 (1974-08-01), Bemis
LoJacono, Sr. Francis X.
Smith Gary L.
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