US4556010A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of controlling noxious insects
Assignee: Individual
•
Filing: 1982-03-19
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Granted: 1985-12-03
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Expires: 2002-03-19
Abstract
Abstract A method of controlling noxious insects which lay their eggs on standing crops by providing in the area of the crops a light flow the light intensity of which is varied, with cyclic repetition, gradually between a minimum and a maximum, the light intensity returning momentarily between two succeeding cycles.
Inventors
- 👤 Bert Persson
- 👤 Hakan Svensson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 00:02
CPC Classifications
A; A01; A01N; A01N29/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
73 words
A method of controlling noxious insects by repressing the insect's oviposition and mating comprising providing illumination of variable intensity onto the infested area, gradually varying the intensity between a first value and a second value, one of said values being higher than the other one, and abruptly changing the intensity from said second value to said first value and periodically repeating the cycle as with a linear electronic saw tooth sweep circuit generator.
Claim 2
Independent Claim
73 words
A method of controlling noxious insects by repressing the insect's oviposition and mating comprising providing illumination of variable intensity onto the infested area, gradually varying the intensity between a first value and a second value, one of said values being higher than the other one, and abruptly changing the intensity from said second value to said first value and periodically repeating the cycle as with a linear electronic saw tooth sweep circuit generator.
Claim 3
Dependent Claim
13 words
A method according to claim 1 wherein one of said values is zero.
Claim 4
Dependent Claim
15 words
A method according to claim 1 wherein said first value is higher said second value.
Claim 5
Dependent Claim
16 words
A method according to claim 1 wherein said first value is lower than said second value.
Claim 6
Dependent Claim
71 words
A method according to claim 1 wherein said gradual varying of intensity includes periodic repetition of a first cycle of varying intensity by gradually increasing intensity from a minimum to a maximum and then abruptly reducing to a minimum, and thereafter a periodic repetition of a second cycle of varying intensity by gradually decreasing intensity from a maximum value to a minimum value and then abruptly increasing to a maximum value.
Claim 7
Dependent Claim
15 words
A method ccording to claim 1 or 5 wherein the cycle is generally 20 seconds.
References Cited (Backward Citations)
US697072A
Cited
US1483710A
Cited
US1819551A
Cited
CH522357A
Cited
FR2375824A1
Cited
US4337592A
Cited
US4356656A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-12-02 | 1989-06-03 | 1989-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-02 | 1993-06-03 | 1993-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-02 | 1997-06-03 | 1997-12-03 | $7700.00 | Window Closed / Lapsed |