Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Plural distributing means immediately upstream of runner
Patent
1976-04-12
1978-04-18
Powell, Jr., Everette A.
Rotary kinetic fluid motors or pumps
Working fluid passage or distributing means associated with...
Plural distributing means immediately upstream of runner
415125, F04D 2508
Patent
active
040844919
ABSTRACT:
This invention teaches an air distributor accessory device for a breeze box type fan having an annular case and having fan blades supported to rotate within the confines of this case. The accessory device is designed to fit against and be secured to the front face of the fan case, and itself has an annular frame that pivotally supports a plurality of vanes in generally parallel relation. Each vane has a slender profile, and depending on its orientation relative to the direction of the air flow over it can either allow the air to pass straight through or redirect it in a sideways manner. Cross members pivotally interconnected all of the vanes to maintain them generally parallel to one another, and to move them uniformly. A small motor unit is connected to one of the cross members to oscillate the vanes side to side in unison. The vanes and cross members are assembled together and to the frame by slight flexure of the components themselves, and certain of the pivotal connections of the components are of the snap fitted type.
REFERENCES:
patent: 697448 (1902-04-01), Coleman
patent: 2037250 (1936-04-01), MacDonald
patent: 3303772 (1967-02-01), Wheatley
patent: 3345930 (1967-10-01), Ammons
patent: 3380372 (1968-04-01), Perry
patent: 3699873 (1972-10-01), Irvin
patent: 3996845 (1976-12-01), Harris
patent: 4007673 (1977-02-01), Zaloga
Arrandale Thomas P.
Spotts Glenn R.
Spotts Willard
LaPorte Ronald J.
McGraw-Edison Company
Powell Jr. Everette A.
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