US4152075A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Immersible probe for optical dual beam-measuring apparatus
Assignee: Mettler Toledo GmbH Germany
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Filing: 1977-03-31
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Granted: 1979-05-01
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Expires: 1997-03-31
Abstract
Abstract An immersible probe for optical dual beam-measuring apparatus, comprising a sample feeler intended to be immersed in a sample for performing a measurement at the sample to be analyzed. The sample feeler is equipped with a light conductor. There is further provided a reference feeler immersible in a standard medium. Both the sample feeler and the reference feeler are attached to a probe body.
Inventors
- 👤 Werner Rellstab
- 👤 Jurg Daetwyler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:21
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/84; G01N21/85; G01N21/8507; G01N2021/8528
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
126 words
An immersible probe for an optical dual beam-measuring apparatus, comprising: a sample feeler capable of being immersed in a sample for analysis of such sample; a reference sensor capable of being immersed in a reference medium; a probe body to which there are affixed both said sample sensor and said reference sensor; light conductor means provided for said sample sensor and said reference sensor; said reference sensor is structured to be shorter than said sample sensor; both of said sensors extending essentially in the same direction; a reference vessel for housing the reference medium; screw means for releasably attaching said reference vessel to said probe body; and a respective opto-electrical transducer contained in said probe body and provided for each said sample sensor and reference sensor.
Claim 2
Dependent Claim
126 words
An immersible probe for an optical dual beam-measuring apparatus, comprising: a sample feeler capable of being immersed in a sample for analysis of such sample; a reference sensor capable of being immersed in a reference medium; a probe body to which there are affixed both said sample sensor and said reference sensor; light conductor means provided for said sample sensor and said reference sensor; said reference sensor is structured to be shorter than said sample sensor; both of said sensors extending essentially in the same direction; a reference vessel for housing the reference medium; screw means for releasably attaching said reference vessel to said probe body; and a respective opto-electrical transducer contained in said probe body and provided for each said sample sensor and reference sensor.
Claim 3
Dependent Claim
22 words
The immersible probe as defined in claim 1, wherein: the reference vessel and the sample sensor are positioned parallel to each other.
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) | 1982-04-30 | 1982-10-30 | 1983-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-30 | 1986-10-30 | 1987-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-30 | 1990-10-30 | 1991-05-01 | $7700.00 | Window Closed / Lapsed |