Selective seed port
OwnerJohn E Potenteinventor
Life of this patent
Estimating the term…
Abstract
The invention comprises a feeding port for a bird feeder that serves to discriminate between prospective feeding birds by virtue of a forward leaning facing and a downward sloping shortened perch. The prospective bird must have the ability to cling to the short angled perch while leaning backwards to obtain feed from the seed access opening.
Claims14
A combination feeding port and perch on a hollow, hopper style feed storing bird feeder structure which allows access of seed only to those birds able to pick seed through a small horizontal open slot port while clinging to a perch, while denying access to other non-clinging birds, comprising:
- said structure having an extended floor, a facing and side enclosing a hollow space;
- a facing attached to said open port;
- said facing having an upper end and a lower end;
- said facing being tilted forward;
- said facing having a lower narrow horizontal slotted opening wide enough to allow seed to be plucked through, yet not wide enough to allow seed to fall freely through;
- a perch extending out past said lower end of said facing, said perch being short;
- said perch having a height limited to a predetermined open grasping height of the claws of a clinging bird;
- said perch being angled downward;
- said tilted facing extending horizontally outward a predetermined length of being at least twice that of a predetermined length by which said perch extends horizontally, and,
- said predetermined extended length of said perch further being no more than three times that of predetermined height of horizontal slotted opening.
A combination feeding port and perch on a hollow, hopper-style feed storing bird feeder which allow access of seed only to those birds able to pick seed through a small horizontal open slot while clinging to a perch, while denying access to other non-clinging birds, comprising:
- a facing attached to said open port;
- said facing having an upper end and a lower end;
- said facing being tilted forward;
- said facing having a lower narrow horizontal slotted opening wide enough to allow seed to fall freely through;
- said perch being short;
- said perch having a height limited to a predetermined open grasping height of the claws of a clinging bird;
- said tilted facing extending horizontally outward a predetermined length of being at least twice that of a predetermined length by which said perch extends horizontally, and,
- said predetermined extended length of said perch further being no more than three times that of predetermined height of said horizontal slotted open port.
A combination feeding port and perch on a hollow, hopper-style feed storing bird feeder which allow access of seed only to those birds able to pick seed through a small horizontal open slot while clinging to a perch, while denying access to other non-clinging birds, comprising:
- a facing attached to said open port;
- said facing having an upper end and a lower end;
- said facing having a lower narrow horizontal slotted opening wide enough to allow seed to fall freely through;
- said perch being short;
- said perch having a means for limiting access to said perch to only a claw-grasping bird;
- said means comprising said perch having a height corresponding to an open grasping height of the claws of a clinging bird and said perch having an outward extending length less than a predetermined length of a landing zone for a bird to stand erect upon.
Dependencies are inferred from the claim text.