US 6,638,066 B2Granted

Dental vacuum system

AssigneeAir Techniques, Inc.

InventorsHenry Hubner, Edgar Alzner, Selwyn Foster, Jr.

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Abstract

A dental vacuum system for use in dental operatories in which a dental aspirator tip in the dental operatory is in fluid communication with a two stage side channel blower for providing suction to the system, there being interposed between the dental aspirator tip and the two stage side channel blower, a solid debris collector and separation chamber for the passage of air and collection of effluent and debris, the air outlet port in the separation chamber having a float valve sealing means, the float valve sealing means having a pivotal lever with a sealing means at one end for engagement with the air outlet port and a float at the opposing lever end for contact with a fluid or foam level within the separation tank, the float depending from the lever end a sufficient distance so as to cause the sealing means to seal the outlet port before any foam can exit the separation tank.

Claims12

Dependent claims

A dental vacuum system for processing effluent from a dental operatory, which comprises:

a cylindrically-shaped vessel having a conically-shaped bottom member defining a separation chamber and including a lid member positioned on said cylindrically-shaped vessel thereby enclosing said separation chamber, a first conduit member horizontally mounted to said cylindrically-shaped vessel proximate said lid member and having an exit port disposed in a horizontal plane facing said lid member, an outlet conduit in gaseous communication with said first conduit member, a second fluid conduit member horizontally mounted to said cylindrically-shaped vessel and vertically disposed below said exit port of said first conduit member for introducing said effluent into said separation chamber, a third conduit member mounted to said conically-shaped bottom member, and means for sealing said exit port of said first conduit member in response to liquid in said separation chamber reaching a predetermined level thereby to prevent liquid from entering said first conduit member;
and
a side channel two stage blower having a suction side and a vent line to atmosphere, said suction side being in gaseous communication via said outlet conduit in gaseous communication with said first conduit member.

Dependencies are inferred from the claim text.