Chairside filter/dryer for dental air syringe

Details Chairside filter/dryer for dental air syringe Chairside filter/dryer for dental air syringe

1986-12-24

1988-05-03

Wilson, John J.

Dentistry

Apparatus

55387, 55274, A61C 300, B01D 3900, B01D 1900

Patent

active

047416971

ABSTRACT:
The cartridge has a transparent housing with nipples at opposite ends thereof releasably insertable in the flexible tube which supplies compressed air from a primary filtering mechanism to a dental air syringe. The cartridge containes a filter element which changes color as it removes a predetermined residual contaminate from the compressed air. The cartridge is positioned adjacent the dental chair so the dentist may observe the change of color in the filter element.

REFERENCES:
patent: 2029734 (1936-02-01), Meitzler
patent: 3279151 (1966-10-01), Kaver, Jr. et al.
patent: 3347387 (1967-10-01), Balogh
patent: 3348692 (1967-10-01), Balogh
patent: 3401691 (1968-09-01), Beu
patent: 3494110 (1970-02-01), Reed et al.
patent: 3681899 (1972-08-01), Grote
patent: 3841484 (1974-10-01), Domnick
patent: 3891417 (1975-06-01), Wade
patent: 4015959 (1977-04-01), Grote
patent: 4487618 (1984-12-01), Mann

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