US3656141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bird-scattering device
Assignee: Individual
•
Filing: 1970-01-23
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Granted: 1972-04-11
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Expires: 1990-01-23
Abstract
Abstract A bird-scattering device operative in response to the weight of the bird alighting thereon to provide an audible alarm effective to frighten birds in the vicinity thereof. The device includes a support casing having a chamber housing therein an electric circuit that comprises an audible alarm in series with a switch operative to complete the circuit whenever a bird alights upon the device. The switch provides as the movable element thereof a large perch normally biased into an inoperative position but displaceable into a closed alarm-energizing position effective to complete the electric circuit whenever a bird lights upon the perch.
Inventors
- 👤 Frank C Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:45
CPC Classifications
G; G08; G08B; G08B3/00; G08B3/10; G08B21/00; G08B21/18
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
231 words
A device for scattering birds, comprising support structure, a selectively operable elecTrically energizable alarm carried by said support structure and being effective in the operative condition thereof to provide sound of a character to frighten birds and thereby scatter the same, a perch mounted upon said support structure for movement between an upper inoperative position and a lower transient alarm-energizing position and being displaceable downwardly into the latter position in response to the weight of a bird perched thereupon, and normally open electric circuit means including said alarm as an element thereof and being interconnected with said perch so as to be closed thereby and actuate said alarm in response to downward displacements of said perch into the alarm-energized position thereof, said perch being substantially coextensive in size with said support structure so that any bird attempting to alight upon said device will be forced to alight upon said perch, and said perch adjacent one end thereof being turned upon itself into a generally U-shaped configuration to provide an underlying end portion secured to said support structure and defining an integral spring, said perch having sufficient inherent resilience to be self-biased by said spring into such upper inoperative position in the absence of the weight of a bird thereon and to swing downwardly into such lower alarm-energizing position against the biasing force of said spring under the weight of a bird.
Claim 2
Independent Claim
231 words
A device for scattering birds, comprising support structure, a selectively operable elecTrically energizable alarm carried by said support structure and being effective in the operative condition thereof to provide sound of a character to frighten birds and thereby scatter the same, a perch mounted upon said support structure for movement between an upper inoperative position and a lower transient alarm-energizing position and being displaceable downwardly into the latter position in response to the weight of a bird perched thereupon, and normally open electric circuit means including said alarm as an element thereof and being interconnected with said perch so as to be closed thereby and actuate said alarm in response to downward displacements of said perch into the alarm-energized position thereof, said perch being substantially coextensive in size with said support structure so that any bird attempting to alight upon said device will be forced to alight upon said perch, and said perch adjacent one end thereof being turned upon itself into a generally U-shaped configuration to provide an underlying end portion secured to said support structure and defining an integral spring, said perch having sufficient inherent resilience to be self-biased by said spring into such upper inoperative position in the absence of the weight of a bird thereon and to swing downwardly into such lower alarm-energizing position against the biasing force of said spring under the weight of a bird.
Claim 3
Dependent Claim
44 words
The device of claim 1 in which said perch comprises an electric conductor forming the movable component of a normally open switch included in said circuit and closed to complete the same upon downward displacement of said perch into the lower alarm-energizing position thereof.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-11 | 1975-10-11 | 1976-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-11 | 1979-10-11 | 1980-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-11 | 1983-10-11 | 1984-04-11 | $7700.00 | Window Closed / Lapsed |