Method and apparatus for moving a granulate material in a dental

Details Method and apparatus for moving a granulate material in a dental Method and apparatus for moving a granulate material in a dental

1988-03-03

1990-12-11

Schmidt, Frederick R.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51427, 51436, 51319, B24C 300

Patent

active

049760734

ABSTRACT:
An apparatus for moving a granulate material for use on dental prostheses comprises a container for the material, with at least one riser pipe which projects into the space in the container above the material therein and which is fixed to a support base connected to the container. With at least one metering nozzle which terminates in the interior of the container, the riser pipe is connected to an air feed means for carrying a flow of air for conveying the material from the container in the form of an air/material mixture. At least one closure member is disposed in the mixture discharge means of the apparatus. In the method of moving the granulate material, the material is mixed with compressed air and fed in the form of a mixed flow to the dental prosthesis to be operated on, wherein a flow of control air may be fed to the granulate material prior to mixing thereof with the compressed air for fluidization of that material with the control air.

REFERENCES:
patent: 554300 (1896-02-01), Parker
patent: 2817310 (1957-12-01), Ponzini
patent: 3415450 (1968-12-01), Hawk
patent: 3436019 (1969-04-01), Hawk
patent: 3442454 (1969-05-01), Stenger et al.
patent: 3631631 (1972-01-01), Greenstein
patent: 4482322 (1984-11-01), Hain et al.
patent: 4492575 (1985-01-01), Mabille
patent: 4569161 (1986-02-01), Shipman

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