Patent US3831548A successfully refreshed from Google Patents.
US3831548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pest control device
Assignee: Thomas Industries Inc
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Filing: 1972-12-29
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Granted: 1974-08-27
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Expires: 1992-12-29
Abstract
Abstract A resonator and resonator combination for continuously producing ultrasonic vibrations of frequencies effective to drive away pests, e.g., rodents. The resonator has a housing provided with an internal cavity and an outwardly flaring horn in communication with and spaced from said fluid jet producing means. A rigid airfoil, which may be integral with said housing, projects into the path of flow of fluid from the jet producing means to the jet obstruction means. The resonator can be used in combination with a means to continuously supply air under pressure to the jet producing means and characterized by cycle pulsation to cyclically vary the amplitude of the ultrasonic vibrations, said means preferably comprising an expansible chamber axially aligned with and closely connected with said jet producing means.
Inventors
- 👤 A Droege
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:04
CPC Classifications
A; A01; A01M; A01M29/00; A01M29/16; A01M29/18; G; G10; G10K; G10K5/00; G10K5/02
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
131 words
A device for producing sound vibrations of a frequency effective to repel pests comprising a housing member and a sound directing means formed in said housing; said sound directing means constituting a flared cavity; a first bore formed in said housing and opening into said cavity; a fluid jet producing means positioned within said first bore and projecting into said cavity; a second bore formed in said housing coaxial with said first bore; a resonator means positioned in said second bore and linearly spaced from said jet producing means; a rigid and nondeformable air modulating foil formed with said housing and extending transverse to the axis of said fluid jet producing means and resonator means; and said airfoil extending into the space between said jet producing means and said resonator means.
Claim 2
Independent Claim
131 words
A device for producing sound vibrations of a frequency effective to repel pests comprising a housing member and a sound directing means formed in said housing; said sound directing means constituting a flared cavity; a first bore formed in said housing and opening into said cavity; a fluid jet producing means positioned within said first bore and projecting into said cavity; a second bore formed in said housing coaxial with said first bore; a resonator means positioned in said second bore and linearly spaced from said jet producing means; a rigid and nondeformable air modulating foil formed with said housing and extending transverse to the axis of said fluid jet producing means and resonator means; and said airfoil extending into the space between said jet producing means and said resonator means.
Claim 3
Dependent Claim
12 words
The device of claim 1 wherein said air modulating foil is preformed.
Claim 4
Dependent Claim
17 words
The device of claim 1 wherein said fluid obstruction means is provided with a jet receiving cavity.
Claim 5
Dependent Claim
19 words
The device of claim 1 which further comprises a means to continuously supply fluid to said jet producing means.
Claim 6
Dependent Claim
29 words
The device of claim 4 wherein the means for supplying fluid to said jet producing means further includes means for supplying pulsations to the fluid passing jet producing means.
Claim 7
Dependent Claim
18 words
The device of claim 1 including means for producing cyclic and continuous variations in amplitude of the vibrations.
Claim 8
Dependent Claim
28 words
The device of claim 6 wherein the means for supplying fluid to said jet producing means includes means for pulsating the fluid delivered to the jet producing means.
Claim 9
Dependent Claim
15 words
The device of claim 7 wherein said pulsating means includes an expansible chamber air compressor.
Claim 10
Dependent Claim
18 words
The device of claim 8 wherein said resonator is mounted upon and directly connected to said air compressor.
Claim 11
Dependent Claim
29 words
The device of claim 8 wherein said resonator is mounted upon the air compressor and said jet producing means is in alignment with the expansible chamber of the compressor.
Claim 12
Dependent Claim
22 words
The device of claim 7 wherein the pulsations are cyclic and produce a cyclic variation in amplitude of at least 25 percent.
Claim 13
Dependent Claim
15 words
The device of claim 10 wherein the variation in amplitude is at least 80 percent.
Claim 14
Dependent Claim
23 words
The device of claim 8 wherein said means for passing the fluid from the compressor to the resonator is a short straight passageway.
Claim 15
Dependent Claim
24 words
The device of claim 13 wherein said fluid jet obstruction means extends into said cavity about 0.25 inches and is about 0.094 inches thick.
Claim 16
Dependent Claim
49 words
The device of claim 14 wherein said fluid obstruction means is provided with a jet receiving cavity having a diameter of about 0.130 inches and a depth of about 0.080 inches and said fluid jet producing means is provided with an orifice having a diameter of about 0.080 inches.
References Cited (Backward Citations)
US2463766A
Cited
US2519619A
Cited
US2791239A
Cited
US2959359A
Cited
US3157153A
Cited
US3157154A
Cited
US3188999A
Cited
GB1186350A
Cited
US3533373A
Cited
US3651824A
Cited
US3713417A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-26 | 1978-02-25 | 1978-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-26 | 1982-02-25 | 1982-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-26 | 1986-02-25 | 1986-08-27 | $7700.00 | Window Closed / Lapsed |