US3948249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for detecting and identifying a cow in heat
Assignee: Individual
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Filing: 1975-03-31
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Granted: 1976-04-06
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Expires: 1995-03-31
Abstract
Abstract Method and apparatus for detecting and marking cow's in heat utilizing a heat sensitive current generator to scan the cow's backs and generate a current in response to detection of a zone at elevated temperature, characteristic of the tail head of a cow irritated by repeated mounting by other cows. A solenoid valve opens by the current so generated to porject a marking dye onto the cow's back.
Inventors
- 👤 Herman J. Ambrosini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:39
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/01; A61D; A61D17/00; A61D17/002
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
102 words
Apparatus for detecting a cow in heat comprising: a frame member positioned to allow a cow to pass beneath it; a heat sensitive member on said frame member conditioned to generate a current in response to the presence of a zone of a cow's back at elevated temperatures; a first container for marking fluid mounted on said frame; a conduit from said container opening below said frame in advance of said heat sensitive member; an on-off valve in said conduit; and valve control means connected to said heat sensitive member and operable in response to an electrical signal to open said valve.
Claim 2
Dependent Claim
102 words
Apparatus for detecting a cow in heat comprising: a frame member positioned to allow a cow to pass beneath it; a heat sensitive member on said frame member conditioned to generate a current in response to the presence of a zone of a cow's back at elevated temperatures; a first container for marking fluid mounted on said frame; a conduit from said container opening below said frame in advance of said heat sensitive member; an on-off valve in said conduit; and valve control means connected to said heat sensitive member and operable in response to an electrical signal to open said valve.
Claim 3
Dependent Claim
18 words
The apparatus defined by claim 1 including: an audio signal device electrically connected to said heat sensitive member.
Claim 4
Dependent Claim
16 words
The apparatus defined by claim 1 including: means for maintaining a gas pressure in said container.
Claim 5
Dependent Claim
75 words
The apparatus defined by claim 1 including: a second container for marking fluid on said frame adjacent to said first container; a second conduit opening from said second container; a second on-off valve in said second conduit; a second valve control means to open said valve in response to an electrical signal form said heat sensitive member; and switch means for selectively connecting said first and second valve control means to said heat sensitive member.
Claim 6
Independent Claim
50 words
A method for detecting a cow in heat comprising: scanning a cow's back with heat sensitive means to detect the presence of a localized zone at elevated temperature in the area of a cow's tail head; and applying a mark to the cow upon the detection of said elevated temperature.
Claim 7
Independent Claim
50 words
A method for detecting a cow in heat comprising: scanning a cow's back with heat sensitive means to detect the presence of a localized zone at elevated temperature in the area of a cow's tail head; and applying a mark to the cow upon the detection of said elevated temperature.
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) | 1979-04-06 | 1979-10-06 | 1980-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-06 | 1983-10-06 | 1984-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-06 | 1987-10-06 | 1988-04-06 | $7700.00 | Window Closed / Lapsed |