Patent US3710111A successfully refreshed from Google Patents.
US3710111A
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Dynamically calibrated oil content meter
Assignee: Individual
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Filing: 1970-12-28
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Granted: 1973-01-09
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Expires: 1990-12-28
Abstract
Abstract A system to continuously detect oil concentration levels in water flowing through a pipe having a transparent shunt path illuminated by an ultraviolet light source and a photo-cell detector responsive to light irradiation intensities therefrom. A second shunt path and small pump are provided about the first shunt path enabling the system to be zero balanced for ambient conditions of the principal liquid and alarm tripping calibrated under dynamic conditions for a predetermined concentration level therein.
Inventors
- 👤 L Collura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:07
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/25; G01N21/31; G01N21/33
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
147 words
A system for detecting suspensed contaminant levels in a principal liquid flowing in a pipe comprising a first shunt path fitted with a transparent section communicating with the pipe to pass therethrough a portion of the flow, light eminating and detecting means arranged to illuminate the flow in the transparent section and develop electrical responses indicative of the contaminant concentration level therein, circuit means responsive to said electrical responses for indicating the instantaneous contaminant concentration level, the improvement comprising means defining a second shunt path closing about said transparent section and having means enabling custom ambient noncontaminated and predetermined contaminant concentration level calibration adjustments to be set into said circuit means, and wherein said means defining the first and second shunt paths includes a pump for circulating the liquid in the second shunt path and the transparent section to provide said concentration level calibration under dynamic conditions.
Claim 2
Independent Claim
147 words
A system for detecting suspensed contaminant levels in a principal liquid flowing in a pipe comprising a first shunt path fitted with a transparent section communicating with the pipe to pass therethrough a portion of the flow, light eminating and detecting means arranged to illuminate the flow in the transparent section and develop electrical responses indicative of the contaminant concentration level therein, circuit means responsive to said electrical responses for indicating the instantaneous contaminant concentration level, the improvement comprising means defining a second shunt path closing about said transparent section and having means enabling custom ambient noncontaminated and predetermined contaminant concentration level calibration adjustments to be set into said circuit means, and wherein said means defining the first and second shunt paths includes a pump for circulating the liquid in the second shunt path and the transparent section to provide said concentration level calibration under dynamic conditions.
Claim 3
Dependent Claim
58 words
The system of claim 1 wherein means are provided to selectively (a) isolate both the shunt paths from the pipe (b) communicate the first shunt path with the pipe and isolate the second shunt path and (c) isolate the first and second shunt paths from the pipe and communicate the first and second shunt paths with each other.
Claim 4
Dependent Claim
23 words
The system of claim 1 wherein the first shunt path communicates with the pipe to reintroduce liquid passing therethrough back into the pipe.
Claim 5
Dependent Claim
73 words
The system of claim 1 wherein the circuit means includes a first detector stage having an adjustable zero set for principal liquid ambient conditions in said transparent section, the photo-cell applying signal input to said first stage, the first stage output feeding a second detector stage having a switch device responsive to a tripping signal level previously set in response to the predetermined concentration level in the transparent section during the calibration thereof.
References Cited (Backward Citations)
US2936371A
Cited
US3581085A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-09 | 1976-07-10 | 1977-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-09 | 1980-07-10 | 1981-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-09 | 1984-07-10 | 1985-01-09 | $7700.00 | Window Closed / Lapsed |