Special receptacle or package – For body treatment article or material – Dental
Patent
1993-04-01
1995-11-14
Gehman, Bryon P.
Special receptacle or package
For body treatment article or material
Dental
206219, 2511493, 383 44, 383904, 383906, A61B 1902, B65D 2508, B65D 3024, F16K 5100
Patent
active
054658330
ABSTRACT:
A dental impression powder package and method for the preparation of material for making dental impressions. The package includes a bag that encloses dental impression powder and a valve that extends through the bag. The valve is selectively adjustable between an open state where the water is injectable into the bag and a closed state in which fluids are prevented from passing through the valve. The valve includes an open top end, a closed bottom end, a wall extending between the top and bosom ends, and a slit extending along a section of the wall. When the valve is open, the slit opens to permit fluid to be inserted into the bag. The slit closes to block fluid from passing through the slit in the valve while the contents of the bag are being mixed. A syringe is insertable into the valve to insert water into the bag and to extract air from the bag. In one embodiment of the present invention, the alginate mixture is extruded from the bag through the valve and into an impression tray.
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