US3698236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid vaporization tester with hot air purge and method
Assignee: Motors Liquidation Co
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Filing: 1971-01-29
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Granted: 1972-10-17
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Expires: 1991-01-29
Abstract
Abstract A visual fluid vaporization indicator in which a sample of the test fluid is placed in a boiler, heated to cause a percolating action until a fluid column surges through the visual indicator tube at the vaporization temperature of the fluid, this temperature being measured and considered to be the boiling point of the fluid sample. After the test is completed, a drain valve is opened to drain the fluid sample from the boiler, and a cooling fan is energized to blow air to cool the boiler, hot air having passed over the boiler being directed through the boiler and the visual indicator tube and out the drain valve to purge the system of the remains of the fluid which was tested, as well as cooling the boiler, prior to inserting another fluid sample.
Inventors
- 👤 Francis J Markey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:13
CPC Classifications
G; G01; G01N; G01N25/00; G01N25/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
201 words
In a fluid vaporization tester having a housing defining a boiler chamber with a boiler including heating means for heating test fluid, a testing tube leading upwardly from said boiler and reverse-bent to extend downwardly to a boiler fill cup, valve and conduit means selectively connecting the cup with said boiler, drain means for selectively draining test fluid from said boiler, and a cover for the boiler fill cup and reverse-bent portion of the testing tube and when in place defining a second chamber adjacent said boiler chamber, the improvement comprising: means for forcing cooling air into said boiler chamber, first air valve means selectively opened and closed and positioned in said housing for venting said boiler chamber to atmosphere after air has passed around said boiler for cooling, and second selectively opened and closed air valve means positioned in said housing fluidly intermediate said boiler chamber and said second chamber and when open with said first air valve means closed and said cover in place venting said boiler chamber through said second chamber and said testing tube and said boiler and said drain means to purge said testing tube and said boiler of test fluid after testing has been completed.
Claim 2
Dependent Claim
201 words
In a fluid vaporization tester having a housing defining a boiler chamber with a boiler including heating means for heating test fluid, a testing tube leading upwardly from said boiler and reverse-bent to extend downwardly to a boiler fill cup, valve and conduit means selectively connecting the cup with said boiler, drain means for selectively draining test fluid from said boiler, and a cover for the boiler fill cup and reverse-bent portion of the testing tube and when in place defining a second chamber adjacent said boiler chamber, the improvement comprising: means for forcing cooling air into said boiler chamber, first air valve means selectively opened and closed and positioned in said housing for venting said boiler chamber to atmosphere after air has passed around said boiler for cooling, and second selectively opened and closed air valve means positioned in said housing fluidly intermediate said boiler chamber and said second chamber and when open with said first air valve means closed and said cover in place venting said boiler chamber through said second chamber and said testing tube and said boiler and said drain means to purge said testing tube and said boiler of test fluid after testing has been completed.
Claim 3
Dependent Claim
72 words
In a vaporization testing mechanism for measuring the vaporization temperature of a liquid sample by heating it in a boiler and measuring the temperature of the liquid at a predetermined condition, hot air purge means comprising: a fan for forcing air over the boiler to cool the boiler and heat the air, and passage means directing the hot air through the boiler to purge the boiler of liquid which has been tested.
Claim 4
Dependent Claim
72 words
In a vaporization testing mechanism for measuring the vaporization temperature of a liquid sample by heating it in a boiler and measuring the temperature of the liquid at a predetermined condition, hot air purge means comprising: a fan for forcing air over the boiler to cool the boiler and heat the air, and passage means directing the hot air through the boiler to purge the boiler of liquid which has been tested.
Claim 5
Independent Claim
120 words
The method of testing a series of liquid samples for vaporization and purging the mechanism of tested liquid between each test, comprising the steps of: a. heating the sample liquid to vaporize a portion thereof, b. percolating a portion of the sample liquid through a visible inverted U-shaped indicator by gas pressure of the vaporized liquid, c. measuring the temperature of the sample liquid at the time of the first percolating surge of sample liquid through and beyond the highest point of the visible inverted U-shaped indicator, d. cooling the sample liquid heater by air and thereby heating the air, e. and directing the air so heated through the liquid heater and the indicator to purge them of tested liquid.
Claim 6
Independent Claim
120 words
The method of testing a series of liquid samples for vaporization and purging the mechanism of tested liquid between each test, comprising the steps of: a. heating the sample liquid to vaporize a portion thereof, b. percolating a portion of the sample liquid through a visible inverted U-shaped indicator by gas pressure of the vaporized liquid, c. measuring the temperature of the sample liquid at the time of the first percolating surge of sample liquid through and beyond the highest point of the visible inverted U-shaped indicator, d. cooling the sample liquid heater by air and thereby heating the air, e. and directing the air so heated through the liquid heater and the indicator to purge them of tested liquid.
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) | 1975-10-17 | 1976-04-17 | 1976-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-17 | 1980-04-17 | 1980-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-17 | 1984-04-17 | 1984-10-17 | $7700.00 | Window Closed / Lapsed |