US3747260A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insect killer
Assignee: RINGER CORP J
•
Filing: 1971-03-18
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Granted: 1973-07-24
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Expires: 1991-03-18
Abstract
Abstract An insect poisoning and killing device for ants or similar insects in which the poison is enclosed in a casing formed by two flexible sheets of material sealed together around their periphery with indicia indicating a line for cutting off a corner of the casing, the casing being effective when such a corner is cut off and the adjacent material of said casing is distorted to form a passage through the casing at this corner. The passage is sufficiently large to permit the passage of ants therethrough but not sufficiently large to permit the passage of or to attract larger animals. The ant poison is in a solution which impregnates a plurality of folded layers of fibrous material. The passage defines a region having a maximum, distorted cross-sectional area substantially less than the normal cross-sectional area of the fibrous material, so as to retain the fibrous material in the container.
Inventors
- 👤 D Lovness
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:04
CPC Classifications
A; A01; A01M; A01M1/00; A01M1/20; A01M1/2005; A01M1/2011; A01M2200/00; A01M2200/01; A01M2200/011
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
236 words
An insect-killing device for poisoning ants and other similar insects consisting of two spaced sheets of flexible, readily severable foil and a sheet of fibrous material impregnated with a liquid containing a substance toxic to such insects and disposed between the central portions of said two sheets, the outer peripheral portions of said two sheets being joined together about their entire peripheries to form a flexible casing for said fibrous material, the outer surface of at least one of said sheets having indicia thereon indicating a line for severing overlying outer peripheral portions of said sheets from the remainder thereof, said line extending through two parts of said outer peripheral portion of said sheet on which the indicia appears and an intermediate small region of the central portion of which is not joined with the corresponding portion of the other sheet so that when said sheets are cut along said line and said sheets are distorted adjacent the small region of said central portions, there is produced an opening between said sheets which is of a size to permit the passage of such insects but not sufficiently large to permit the passage of or to attract larger animals, said line being so positioned on said sheet that said region has a maximum distorted cross-sectional area substantially less than the normal cross-sectional area of said fibrous material to prevent withdrawal of said fibrous material through said passage.
Claim 2
Dependent Claim
236 words
An insect-killing device for poisoning ants and other similar insects consisting of two spaced sheets of flexible, readily severable foil and a sheet of fibrous material impregnated with a liquid containing a substance toxic to such insects and disposed between the central portions of said two sheets, the outer peripheral portions of said two sheets being joined together about their entire peripheries to form a flexible casing for said fibrous material, the outer surface of at least one of said sheets having indicia thereon indicating a line for severing overlying outer peripheral portions of said sheets from the remainder thereof, said line extending through two parts of said outer peripheral portion of said sheet on which the indicia appears and an intermediate small region of the central portion of which is not joined with the corresponding portion of the other sheet so that when said sheets are cut along said line and said sheets are distorted adjacent the small region of said central portions, there is produced an opening between said sheets which is of a size to permit the passage of such insects but not sufficiently large to permit the passage of or to attract larger animals, said line being so positioned on said sheet that said region has a maximum distorted cross-sectional area substantially less than the normal cross-sectional area of said fibrous material to prevent withdrawal of said fibrous material through said passage.
Claim 3
Dependent Claim
39 words
The device of claim 1 in which said sheets are rectangular in outline and the outer peripheral portions to be removed form a corner of said casing including the small region in which said sheets are not joined together.
Claim 4
Dependent Claim
174 words
An insect-killing device for poisoning ants or similar insects consisting of two sheets of flexible foil having their outer peripheral portions joined together and a sheet of fibrous material impregnated with a liquid containing a substance toxic to such insects and disposed between central spaced portions of said sheets, said device being cut away along a line extending through said peripheral portions of both sheets and a small region of both sheets near the edge of the spaced central portions thereof, the material of both of said sheets being distorted adjacent to said small region near the edge of said central portions to separate said two sheets further at said small region to provide a passage therebetween to the fibrous material of a size to permit the passage of such insects but not sufficiently large to permit the passage of or to attract larger animals, said region having a maximum, distorted, cross-sectional area substantially less than the normal cross-sectional area of said fibrous material to prevent withdrawal of said fibrous material through said passage.
Claim 5
Dependent Claim
174 words
An insect-killing device for poisoning ants or similar insects consisting of two sheets of flexible foil having their outer peripheral portions joined together and a sheet of fibrous material impregnated with a liquid containing a substance toxic to such insects and disposed between central spaced portions of said sheets, said device being cut away along a line extending through said peripheral portions of both sheets and a small region of both sheets near the edge of the spaced central portions thereof, the material of both of said sheets being distorted adjacent to said small region near the edge of said central portions to separate said two sheets further at said small region to provide a passage therebetween to the fibrous material of a size to permit the passage of such insects but not sufficiently large to permit the passage of or to attract larger animals, said region having a maximum, distorted, cross-sectional area substantially less than the normal cross-sectional area of said fibrous material to prevent withdrawal of said fibrous material through said passage.
Claim 6
Dependent Claim
16 words
The device of claim 3 in which both sheets are the same in size and configuration.
Claim 7
Dependent Claim
22 words
The device of claim 3 in which the liquid containing said toxic substance also contains a sweet substance to attract the insects.
Claim 8
Dependent Claim
30 words
The device of claim 1 in which the sheet of foil on which said line indicia is applied is coated with material upon which the indicia can readily be applied.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-23 | 1977-01-22 | 1977-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-23 | 1981-01-22 | 1981-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-23 | 1985-01-22 | 1985-07-24 | $7700.00 | Window Closed / Lapsed |