US3263487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pivotally mounted operating head
Assignee: FISKE ASSOCIATES Inc
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Filing: 1964-04-14
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Granted: 1966-08-02
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Expires: 1984-04-14
Abstract
No abstract record available.
Inventors
- 👤 Jr Augustus H Fiske
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:29
CPC Classifications
G; G01; G01N; G01N25/00; G01N25/02; G01N25/04; G01N25/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
IN A FREEZING POINT DEPRESSION APPARATUS HAVING A BASE, A COOLANT CONTAINER MOUNTED IN SAID BASE, COOLANT CIRCULATING MEANS AND ELECTRICAL MEANS FOR MEASURING THE FREEZING POINT OF A SAMPLE SOLUTION, THE IMPROVEMENT COMPRISING: A PROBE ARM PIVOTALLY SECURED TO SAID BASE FOR ROTATION IN A VERTICAL PLANE; A PROBE UNIT COMPRISING A TEMPERATURE TRANSDUCER AND VIBRATORY STIRRING MEANS, SAID PROBE UNIT BEING MOUNTED ON THE DISTAL END OF SAID PROBE ARM; AND MEANS FOR POSITIONING A CYLINDRICAL TUBE CONTAINING SAID SAMPLE SOLUTION IN SAID COOLANT CONTAINER SO THAT WHEN SAID PROBE ARM IS ROTATED DOWNWARDLY SAID PROBE UNIT WILL BE POSITIONED ALONG THE AXIS OF SAID TUBE AND PARTIALLY IMMERSED IN SAID SAMPLE SOLUTION WITHOUT CONTACTING ANY PORTION OF SAID TUBE.
Claim 2
Dependent Claim
122 words
IN A FREEZING POINT DEPRESSION APPARATUS HAVING A BASE, A COOLANT CONTAINER MOUNTED IN SAID BASE, COOLANT CIRCULATING MEANS AND ELECTRICAL MEANS FOR MEASURING THE FREEZING POINT OF A SAMPLE SOLUTION, THE IMPROVEMENT COMPRISING: A PROBE ARM PIVOTALLY SECURED TO SAID BASE FOR ROTATION IN A VERTICAL PLANE; A PROBE UNIT COMPRISING A TEMPERATURE TRANSDUCER AND VIBRATORY STIRRING MEANS, SAID PROBE UNIT BEING MOUNTED ON THE DISTAL END OF SAID PROBE ARM; AND MEANS FOR POSITIONING A CYLINDRICAL TUBE CONTAINING SAID SAMPLE SOLUTION IN SAID COOLANT CONTAINER SO THAT WHEN SAID PROBE ARM IS ROTATED DOWNWARDLY SAID PROBE UNIT WILL BE POSITIONED ALONG THE AXIS OF SAID TUBE AND PARTIALLY IMMERSED IN SAID SAMPLE SOLUTION WITHOUT CONTACTING ANY PORTION OF SAID TUBE.
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) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |