Blowing apparatus, suction panel therefor and straightening guid

Details Blowing apparatus, suction panel therefor and straightening guid Blowing apparatus, suction panel therefor and straightening guid

1994-06-30

1997-04-15

Joyce, Harold

Ventilation

Having outlet airway

With air pump

181225, F24F 7007

Patent

active

056203705

ABSTRACT:
A blowing apparatus includes a suction passage having a suction chamber enclosed by rigid body surfaces, suction ports opening toward the suction chamber for sucking air from outside, and a fan suction port serving as a suction port for a blower, the suction ports, the suction chamber, and the fan suction port being arranged in nonlinear form. In such blowing apparatus, a doughnut-like straightening guide is arranged on an opening edge on the suction chamber side of the fan suction port. The straightening guide has a projection toward the suction chamber, an appropriate thickness in the radial direction, and a guide passage matching the fan suction port in the middle thereof.

REFERENCES:
patent: 2134142 (1938-10-01), Orear
patent: 2739521 (1956-03-01), Spear
patent: 3011423 (1961-12-01), Breidert
patent: 3330379 (1967-07-01), Cook
patent: 3949830 (1976-04-01), Muehlbauer et al.
patent: 4750860 (1988-06-01), Kelley
patent: 4787818 (1988-11-01), Bales et al.
patent: 5208730 (1993-05-01), Tracy
patent: 5259726 (1993-11-01), Bacria
patent: 5326317 (1994-07-01), Ishizu et al.

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