A bird feeder comprising a seed container, a seed tray situated below the seed container, a shroud extending about the seed tray and having an opening therein to permit access thereto, a perch proximate the opening, a center tube mounted internally of the feed container and a non rotatable nut mount
A bird feeder comprising a seed container, a seed tray situated below the seed container, a shroud extending about the seed tray and having an opening therein to permit access thereto, a perch proximate the opening, a center tube mounted internally of the feed container and a non rotatable nut mounted within the center tube, a post being screwthreadedly engaged with the non rotatable nut to adjust spring tension, a cover about an upper end of the feed container, the arrangement being such that pressure from an animal such as a squirrel on either the cover or perch will cause the shroud to block the opening and deny access to the seed.
대표청구항▼
1. A bird feeder comprising: a seed container;a seed tray situated below said seed container and connected thereto;a shroud extending about said seed tray, said shroud having an opening therein to permit access to said seed tray, said shroud having a bottom portion;a perch proximate said opening in
1. A bird feeder comprising: a seed container;a seed tray situated below said seed container and connected thereto;a shroud extending about said seed tray, said shroud having an opening therein to permit access to said seed tray, said shroud having a bottom portion;a perch proximate said opening in said shroud;a center tube mounted internally of said seed container;a non rotatable nut mounted within said center tube proximate an upper end thereof;a rotatable post within said center tube, an upper end of said rotatable post being screwthreadedly engaged with said non rotatable nut, a lower end of said rotatable post extending through said bottom portion of said shroud, stop means on said rotatable post to retain said shroud;a spring within said center tube, said spring extending between said non rotatable nut and said seed tray;a plunger having a portion thereof located within an upper end of said center tube, said plunger contacting an upper end of said post;a rod extending upwardly from a top end of said center tube; anda cover about an upper end of said feed container, said cover resting on said plunger. 2. The bird feeder of claim 1 further including an aperture in said rod, a hanger having a proximal end and a distal end, said proximal end having a hook-shaped configuration. 3. The bird feeder of claim 1 wherein said cover has an inner vertical wall, said inner vertical wall having vents formed therein, said cover being spaced from the top of said seed container. 4. The bird feeder of claim 1 wherein said spring within said center tube is comprised of first and second spring portions, said first and second spring portions having different spring forces. 5. The bird feeder of claim 1 wherein said shroud has a upper portion and lower portion, said upper portion and said lower portion being connected by a plurality of connecting members. 6. The bird feeder of claim 5 wherein each of said connecting members extends downwardly to form a leg to support said bird feeder on a horizontal surface. 7. The bird feeder of claim 5 wherein said perch is a ring extending about said seed tray, said perch being connected to said connecting members. 8. The bird feeder of claim 1 wherein said seed tray has a bottom wall and a side wall, said bottom wall having a plurality of drainage apertures formed therein, said bottom wall having an upper surface of a convex configuration, an opening in said seed tray for passage of said rotatable post. 9. The bird feeder of claim 1 further including an adjustment member, said adjustment member being secured to a lower portion of said post such that rotation of said adjustment member causes said post to rotate to thereby adjust the spring force. 10. The bird feeder of claim 9 wherein said adjustment member has a wing nut configuration. 11. The bird feeder of claim 1 wherein said center tube has a transparent portion indicia being located on said transparent portion such that visual access is provided to indicate a position of said non-rotatable nut. 12. The bird feeder of claim 1 wherein said plunger has an inner portion and an outer portion, said inner portion having a body section to abut a top end of said post within said center tube, an outer portion being connected to said inner portion, said outer portion having a wall surrounding a top of said center tube to thereby prevent seeds from entering said center tube. 13. The bird feeder of claim 1 wherein a bottom wall of said shroud has a plurality of openings therein to permit stray seeds to pass therethrough. 14. The bird feeder of claim 1 wherein said center tube has a least one rib formed on an inner wall thereof, said non rotating nut having a slot within a side wall thereof, said rib engaging said slot to thereby prevent rotation of said nut. 15. The bird feeder of claim 1 wherein said stop means comprises a nut screwthreadedly engageable with said rotatable post.
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