Suction device, especially for use in dentistry

Details Suction device, especially for use in dentistry Suction device, especially for use in dentistry

1992-08-17

1994-03-22

Look, Edward K.

Rotary kinetic fluid motors or pumps

With means for re-entry of working fluid to blade set

Turbine regenerative pump

415 557, 415 591, F04D 500

Patent

active

052957845

ABSTRACT:
A two-stage side-channel compressor has in the central portion of its rotor (24) vanes (64) forming a radial compressor stage which allow a first side-channel (44) placed radially outward to be connected to an intake (18) on the central axis of the casing without any increase in the dimensions of the casing and without any loss of pressure.

REFERENCES:
patent: 3315607 (1967-04-01), MacInnes
patent: 3324799 (1967-06-01), Terrano
patent: 3614256 (1971-10-01), Sieghartner
patent: 3661474 (1972-05-01), Sieghartner
patent: 3694101 (1972-09-01), Rumsey
patent: 3761203 (1973-09-01), Neidhardt et al.
patent: 4483656 (1984-11-01), Abe et al.

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