IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0545970
(1983-10-27)
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발명자
/ 주소 |
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출원인 / 주소 |
- Profile Management Services, Inc.
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대리인 / 주소 |
Weingarten, Schurgin, Gagnebin & Hayes
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인용정보 |
피인용 횟수 :
25 인용 특허 :
0 |
초록
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A squirrel-proof selective bird feeder includes a metallic hopper having integral side walls and a back wall defining an open front face, an open top, and a feed portal, a translucent window fastened in water-resistant sealing engagement to the open front face, a top having a sandwiched metallic pla
A squirrel-proof selective bird feeder includes a metallic hopper having integral side walls and a back wall defining an open front face, an open top, and a feed portal, a translucent window fastened in water-resistant sealing engagement to the open front face, a top having a sandwiched metallic plate slidably mounted in and frictionally retained by the confronting walls of the open top of the hopper, and a spring-loaded perch having an adjustable tension pivotally mounted to the bottom of the hopper and adjacent the feed portal. In the case of a light bird alighting on the perch having a weight less than that needed to overcome the spring force, the perch remains in at least a partially open state allowing access to the feed portal. In the case of a squirrel or heavy bird having a weight that overcomes the spring force, the perch pivots to a closed state that prevents access to the feed portal. An adjustable feed baffle is provided inside the hopper for regulating the flow of feed into the feed portal, and for providing a preselected opening size selected to accommodate any one of plural feed types. A seed deflector is provided inside the hopper to prevent the jamming engagement of the seed with the motion of the perch. A sloping awning is provided exteriorly of the hopper adjacent to the feed portal to help prevent rain damage to the seed, and to help prevent access thereto by undesirable creatures, particularly squirrels. A member is fastened to the back of the hopper for mounting the hopper to a tree or the like.
대표청구항
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1. A squirrel-proof selective bird feeder comprising: an integral gnaw-proof hopper having a rectangular cross section, an open top, an open bottom, a window receiving aperture, and an internal volume for containing a large quantity of bird feed; a gnaw-proof top member; first means for removab
1. A squirrel-proof selective bird feeder comprising: an integral gnaw-proof hopper having a rectangular cross section, an open top, an open bottom, a window receiving aperture, and an internal volume for containing a large quantity of bird feed; a gnaw-proof top member; first means for removably mounting said top member to the open top of the hopper in a water-resistant sealing engagement therewith; a bottom wall; second means for fastening said bottom wall to said open bottom of said hopper; a window; third means for fastening said window to said aperture in water-resistant sealing engagement with said hopper, and for providing a feed portal defining a plane proximate said bottom wall of said hopper in internal communication with said internal volume; a perch having a gate; fourth means for pivotally mounted said perch at said bottom of said hopper with said gate extending from said perch through said feed portal and into said internal volume of said hopper for rotation between a first position where said gate is inside said hopper and in an open state providing access to said feed portal, and a second position where said gate is substantially coincident with the plane of said feed portal and in a closed state denying access to said feed portal; and fifth means coupled to said perch for biasing said gate to said open condition. 2. The invention of claim 1, wherein said hopper is metallic. 3. The invention of claim 1, wherein said window is fashioned from translucent material. 4. The invention of claim 1, wherein said fourth means includes hinges threadably fastened to said bottom wall. 5. The invention of claim 1, wherein said fifth means includes an adjustable tension spring. 6. The invention of claim 1, further including a seed-deflecting baffle plate mounted in vertically spaced relation to said bottom wall, said plate having a length selected to be just less than the dimension defined between said side walls of said hopper, and a width that is selected to extend across only a portion of the dimension defined between the front and back walls of said hopper. 7. The invention of claim 1, further including a sloping awning fastened to said front face for preventing water damage to said feed portal and for preventing squirrels or other unwanted feeders from gaining access to the feed portal as a result of insufficient purchase. 8. The invention of claim 1, further including an adjustable baffle positioned proximate said feed portal to regulate the rate of flow of any one of plural feed types. 9. The invention of claim 1, wherein said hopper includes confronting front face flanges integral with corresponding ones of said side walls. 10. The invention of claim 9, wherein said third means includes a frame having a lintel having a window-receiving channel, a spaced-apart sill having a window-receiving channel, and first and second side rails. 11. The invention of claim 10, wherein said lintel, sill, and side rails are fastened to said hopper by means of rivets. 12. The invention of claim 1, wherein said top member includes a first member having peripheral dimensions larger than the external dimensions of said open top of said hopper, and a second member parallel and fastened to said first member having peripheral dimensions slightly less the internal dimensions of said open top of said hopper. 13. The invention of claim 12, wherein said first member of said top member is wooden. 14. The invention of claim 1, wherein said bottom wall includes a plate having a right angle back flange and right angle side flanges. 15. The invention of claim 14, wherein said bottom wall is metallic, and wherein said second means are rivets. 16. The invention of claim 1, wherein said perch includes a first member having a rectangular geometry that substantially is equal to the rectangular area defined by said bottom wall, and an integral second member outwardly extending beyond the front face of said hopper. 17. The invention of claim 16, further including a dowel fastened to said second member in vertically spaced relation therefrom. 18. A squirrel-proof selective bird feeder, comprising: a hopper having a bottom and a top, a feed portal defining a plane proximate the bottom, and an inside volume for receiving feed; a weight-responsive perch having an arm pivotally mounted to the bottom of the hopper that is rotatable between a first position where the arm is remote from the feed portal and inside said hopper, and a second position where the arm closes the feed portal and is substantially aligned with the plane defining the feed portal; an adjustable tensioning device positioned inside the hopper and including a coil spring connected to the perch and to the hopper for biasing the perch in said first position; and an adjustable baffle positioned in the hopper and proximate the feed portal for accepting and regulating the flow of any one of plural feed types. 19. The invention of claim 18, wherein the hopper has an open front face, and further including a window fastened to the open front face in water-resistant sealing engagement therewith to provide a visible indication of the feed supply. 20. The invention of claim 18, further including a sloping awning exteriorly fastened to the hopper proximate the feed portal. 21. The invention of claim 18, wherein the hopper has an open top, and further including a gnaw-proof top member slidably mounted in said open top. 22. The invention of claim 18, wherein said gnaw-proof top member includes a plate having an aperture, and further including a post projecting through said hopper and slidably received in said aperture when said top member is slidably received in said open top of said hopper. 23. The invention of claim 18, further including means for mounting said hopper to a support. 24. A squirrel-proof selective bird feeder, comprising: a hopper having a bottom and a top, a feed portal proximate the bottom, and an inside for receiving feed; a weight-responsive perch having an arm pivotally mounted to the hopper that is rotatable between a first position where the arm is remote from the feed portal, and a second position where the arm closes the feed portal; an adjustable tensioning device including a coil spring connected to the perch and mounted inside the hopper for biasing the perch in said first position; and an adjustable baffle positioned in the hopper and so spaced from the feed portal as to provide a feeding area therebetween, said baffle operative to accept and regulate the flow of any one of plural feed types from said inside to said feeding area.
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