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Patent US3643450A successfully refreshed from Google Patents.
US3643450A
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US
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Protecting a buried material such as a cable with water-soluble rodent-repellent compositions
Assignee: Phillips Petroleum Co
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Filing: 1969-09-25
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Granted: 1972-02-22
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Expires: 1989-09-25
Abstract
Abstract A water-soluble rodent-repellent composition is coated onto a material, e.g., a cable, which is laid into the ground. Ground moisture dissolves the composition, forming in the earth surrounding the cable a rodent-repellent barrier thus preventing contact of the rodent with the cable or material. Any rodent repellent in a water-soluble or water-dispersible composition can be used. Specifically mentioned in the disclosure as nowpreferred effective rodent repellents are N,N-dialkyl sulfenyl dithiocarbamates, e.g., the N,N-dimethylsulfenyl dithiocarbamates, N,N-dimethyl-S-methylsulfenyl dithiocarbamate and N,N-dimethyl-S-tert-butylsulfenyl dithiocarbamate.
Inventors
- 👤 Roy E Stansbury
- 👤 James A Shotton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:49
CPC Classifications
A; A01; A01M; A01M29/00; A01M29/12
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
14 words
An object according to claim 1 wherein said repellent material is an N,N-dialkylsulfenyl dithiocarbamate.
Claim 2
Dependent Claim
20 words
An object according to claim 2 wherein said rodent-repellent material comprises at least one of N,N-dimethyl-S-methylsulfenyl dithiocarbamate and N,N-dimethyl-S-tert-butylsulfenyl dithiocarbamate.
Claim 3
Dependent Claim
27 words
An object according to claim 1 wherein the composition which is applied to said object when applied comprises a hydroxyalkyl cellulose and methylalcohol together with said repellent.
Claim 4
Independent Claim
105 words
A method for protecting a rodent-damageable material such as a conduit, a barrier sheet, an electric cable or geophone case, to be buried in the ground which comprises placing uniformly upon the material a layer of a water-dispersible composition, said composition including a rodent repellent and a water-soluble holding substance which in the presence of moisture in the ground permits the dispersal of the repellent into the ground adjacent said material, burying said material in the ground, and permitting ground moisture to remove the composition from the material into the ground in a manner to form a rodent-repellent barrier in the ground surrounding said material.
Claim 5
Dependent Claim
59 words
A method according to claim 5 wherein the amount of repellent in the composition on said material is sufficient to provide with the actual moisture in the ground by dispersion of the composition into the ground an effective amount of repellent to provide a rodent-repellent barrier to essentially completely protect said material and the repellent is an N,N-dialkylsulfenyl dithiocarbamate.
Claim 6
Dependent Claim
26 words
A method according to claim 5 wherein sufficient moisture is applied to the ground surrounding said material to at least initiate the formation of said barrier.
References Cited (Backward Citations)
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Cited
US1971390A
Cited
US2449731A
Cited
US3232007A
Cited
US3426133A
Cited
US3448586A
Cited
US3503800A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-21 | 1975-08-23 | 1976-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-21 | 1979-08-23 | 1980-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-21 | 1983-08-23 | 1984-02-22 | $7700.00 | Window Closed / Lapsed |