Patent US3968774A successfully refreshed from Google Patents.
US3968774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mastitis detector
Assignee: Chalton Electronic Services Ltd
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Filing: 1975-03-05
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Granted: 1976-07-13
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Expires: 1995-03-05
Abstract
Abstract A conductivity cell through which milk may be passed, comprising a generally spherical housing having diametrically opposed inlet and outlet ports, a tubular member within said spherical housing, the outer wall of the tubular member and a portion of the inner wall of the housing defining an annular well, two electrodes extending through said housing and having ends spaced apart within said well, and said tubular extension having a duct therethrough connecting said well to one of said ports.
Inventors
- 👤 Kenneth Herbert Massie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:02
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/02; G01N27/04; G01N27/06; G01N27/07; A; A01; A01J; A01J5/00; A01J5/013; A01J5/0133; A01J5/0135
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
122 words
A cell comprising a casing defined by a generally spherical wall having diametrically opposed inlet and outlet ports, a tubular member within said spherical wall and forming an extension to one of said ports, the outer wall of the tubular member and a portion of the inner wall of the spherical wall defining an annular well, to receive a sample of milk flowing into the cell through said inlet port, and two electrodes extending through said spherical wall and having ends spaced apart within said well, said tubular member having a drainage duct therethrough connecting said well to said one of said ports, said duct having dimensions such as to retain said milk sample in said well with said electrodes submerged therein.
Claim 2
Dependent Claim
122 words
A cell comprising a casing defined by a generally spherical wall having diametrically opposed inlet and outlet ports, a tubular member within said spherical wall and forming an extension to one of said ports, the outer wall of the tubular member and a portion of the inner wall of the spherical wall defining an annular well, to receive a sample of milk flowing into the cell through said inlet port, and two electrodes extending through said spherical wall and having ends spaced apart within said well, said tubular member having a drainage duct therethrough connecting said well to said one of said ports, said duct having dimensions such as to retain said milk sample in said well with said electrodes submerged therein.
Claim 3
Dependent Claim
26 words
A cell according to claim 1 in which said casing and tubular member comprise polycarbonate and define a smooth finish to the interior of said casing.
Claim 4
Dependent Claim
15 words
A cell according to claim 1 in which said electrodes comprise high purity hard graphite.
Claim 5
Dependent Claim
54 words
A cell according to claim 1 in which said casing consists of two substantially hemispherical parts provided respectively with one of said inlet and outet ports and means for releasably and sealingly joining said parts together, said tubular member being formed concentrically with the one of said hemispherical parts provided with said one port.
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) | 1979-07-13 | 1980-01-12 | 1980-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-13 | 1984-01-12 | 1984-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-13 | 1988-01-12 | 1988-07-13 | $7700.00 | Window Closed / Lapsed |