Electricity: electrical systems and devices – Electric charge generating or conducting means – Modification of environmental electric charge
Patent
1991-09-09
1993-09-14
Pellinen, A. D.
Electricity: electrical systems and devices
Electric charge generating or conducting means
Modification of environmental electric charge
454 49, H05F 304
Patent
active
052455033
ABSTRACT:
Apparatus for conveying a stream of air in a fanned out distribution pattern over a work surface without use of diverting vanes comprises a duct having an inlet end coupled to the discharge of a tangential blower and an open outlet end for delivering a predetermined volume of air therethrough. The shape of the duct gently flares outwardly from the inlet to the outlet to provide a wider but flattened configuration in the direction of the air path although the cross-sectional areas of the inlet and outlet ends of the duct are substantially equal, whereby air exiting from the duct covers a broader yet extended range. Incorporating an A.C. static eliminator in the duct adjacent the outlet yields a uniform field of air ionization.
REFERENCES:
patent: 4794486 (1988-12-01), Blach et al.
patent: 5012159 (1991-04-01), Torok et al.
Bilker Stanley
ITW, Inc.
Krishnan Aditya
Pellinen A. D.
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