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Wind operated adjustable bird feed dispenser
   
Document Number
US Patent 3917128
Issued Date
November 4, 1975
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Abstract
A method and apparatus for self-dispensing feed onto a ground surface from a suspended dispensing container in generally circular fall patterns of varying diameter. The apparatus includes an orifice plate positioned upon the bottom of a feed container. The opening of the orifice is provided with a truncated cone restriction which may be rotated by a wind motor to maintain flow through the orifice opening and dispense the feed in a fall pattern of varying diameter. To increase the fall pattern diameter, troughs may be connected to the wind motor to catch the feed after it passes through the orifice, transport the feed away from a central axis of the container and centrifugally scatter the feed in wide fall patterns of randomly variable diameters.
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Wind operated adjustable bird feed dispenser - US Patent 3917128 Drawing
Drawing from US Patent 3917128
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Number of Claims:
13
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Published
November 4, 1975
Application Number
05/421,862
Filed
December 5, 1973
US Classification
222/410   D30/128
Int'l Classification
A01K   39/00   (20060101)   A01K   39/014   (20060101)  
Assistant Examiner
Attorney/Law Firm
Parent Case
This is a continuation, of application Ser. No. 184,824, filed Sept. 29, 1972 now abandoned.
USPTO Field of Search
222/410   222/411   222/412   222/413   222/180   222/181   222/248   222/360   222/322   222/333   222/440   222/411   221/277   221/258   221/565   416/175   416/197   415/89  
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