Agitating – In vacuum chamber
Patent
1988-09-29
1989-10-03
Jenkins, Robert W.
Agitating
In vacuum chamber
366602, B01F 1306
Patent
active
048712612
ABSTRACT:
A mixing apparatus includes a capsule having two or more segments which nay be uncoupled or opened for adding additional ingredients to a pre-dosed ingredient just prior to the mixing operation. The capsule includes a port which is brought into registration with a vacuum port and an adjacent passageway carried by an arm of a dental amalgamator when the capsule is mounted on the arms, and sealing engagement of the perimeter of the capsule port with the port carried by amalgamator arm enables the establishment of sub-atmospheric pressure conditions within the capsule during the mixing operation. Optionally, the ingredients are mixed in a disposable ampule carried within the capsule, and vacuum conditions are established both internally and externally of the ampule for preventing unintentional compression of the ampule. The apparatus is particularly useful for mixing materials which, after mixing, have a consistency ranging from a light cream to a thick, viscous paste.
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"Some Aspects of Vacuum Mixing of Composite Resins and its Effect on Porosity", Quintessence International, No. 7, Report No. 1778 (Jul. 1979, pp. 1-5).
Christoff James D.
Jenkins Robert W.
Kirn Walter N.
Minnesota Mining and Manufacturing Company
Sell Donald M.
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