US4151256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-in-oil detection device
Assignee: Mobil Oil AS
•
Filing: 1978-05-08
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Granted: 1979-04-24
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Expires: 1998-05-08
Abstract
Abstract A device for detecting the presence of small quantities of water in oil and other petroleum products comprises a container with an associated sample cup for a predetermined quantity of oil whose water content is to be measured, a collector vessel attached to the container and a delivery tube leading from the bottom of the container to the collector vessel. A valve may be interposed in the delivery tube so that the interior of the container can be completely sealed.
Inventors
- 👤 August B. Pedersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:38
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/26; G01N33/28; G01N33/2835; G01N33/2847
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
120 words
A testing device for detecting the presence of small quantities of water in petroleum products, which comprises: (i) a container for an inert liquid, (ii) a closure means for the container for providing a substantially gas-tight seal, (iii) a sample cup for containing a predetermined quantity of the petroleum product which is to be tested and having access to the interior of the container (iv) a collector integral with the container for receiving a quantity of the inert liquid expelled from the container by gas pressure in the container, (v) a delivery tube extending from the bottom of the interior of the container to the collector, (vi) a valve for controlling flow of the inert liquid through the delivery tube.
Claim 2
Dependent Claim
120 words
A testing device for detecting the presence of small quantities of water in petroleum products, which comprises: (i) a container for an inert liquid, (ii) a closure means for the container for providing a substantially gas-tight seal, (iii) a sample cup for containing a predetermined quantity of the petroleum product which is to be tested and having access to the interior of the container (iv) a collector integral with the container for receiving a quantity of the inert liquid expelled from the container by gas pressure in the container, (v) a delivery tube extending from the bottom of the interior of the container to the collector, (vi) a valve for controlling flow of the inert liquid through the delivery tube.
Claim 3
Dependent Claim
43 words
A testing device according to claim 1 in which the delivery tube extends from the bottom of the interior of the container upwards through a side wall of the container to a delivery port for the collector at the top of the collector.
Claim 4
Dependent Claim
20 words
A testing device according to claim 2 in which the valve is disposed at the top of the delivery tube.
Claim 5
Dependent Claim
15 words
A testing device according to claim 3 in which the valve comprises a screw valve.
Claim 6
Dependent Claim
24 words
A testing device according to claim 4 in which the valve comprises a movable screw member of resilient plastic material and a metal seating.
Claim 7
Dependent Claim
48 words
A testing device according to claim 1 in which the sample cup comprises a cylindrical vessel adapted to fit within the container and having a port in its side above its bottom to permit access between the interior of the container and the interior of the sample cup.
References Cited (Backward Citations)
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Cited
US3528775A
Cited
US3833340A
Cited
US3873271A
Cited
US3976572A
Cited
US4089652A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-04-23 | 1982-10-23 | 1983-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-23 | 1986-10-23 | 1987-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-23 | 1990-10-23 | 1991-04-24 | $7700.00 | Window Closed / Lapsed |