Dispensing – With recorder – register – indicator – signal or exhibitor – Position or extent of motion indicator
Patent
1981-06-15
1984-05-22
Rolla, Joseph J.
Dispensing
With recorder, register, indicator, signal or exhibitor
Position or extent of motion indicator
222136, 2223865, 222390, 604 89, 604224, A61C 506
Patent
active
044496451
ABSTRACT:
A dental container receives and separately stores mercury and silver ingredients until they are subsequently brought together and mixed within the container for making a ready-to-use amalgam which is directly injected from the container into a prepared tooth cavity. Visual indicators are provided on the container to advise a dental operator of the current status of the dental container.
REFERENCES:
patent: 1784260 (1930-12-01), Walstrom
patent: 2558998 (1951-07-01), Yearout
patent: 3070094 (1962-12-01), Sarnoff et al.
patent: 3477431 (1969-11-01), Walecka
patent: 3595439 (1971-07-01), Newby et al.
patent: 3885710 (1975-05-01), Cohen
patent: 4312343 (1982-01-01), Leveen et al.
Korwin Paul
Korwin Robert
Handren Frederick R.
Rolla Joseph J.
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