Leak testing apparatus
Abstract
Abstract A LEAK TESTING DEVICE, COMMONLY EMPLOYED IN TESTING AUTOMOTIVE ENGINE COMPONENTS AND THE LIKE, WHICH PRESSURIZES THE PART TO BE TESTED AND A STANDARD CHAMBER, SEPARATES THE TWO, AND THEN MEASURES THE DIFFERENCE IN PRESSURE OVER A GIVEN PERIOD OF TIME BETWEEN THE PART AND THE STANDARD CHAMBER. THE IMPROVEMENT IN SUCH A DEVICE REDUCING THE TIME REQUIRED FOR TAKING A REPRODUCEABLE USEFUL READING BY INCORPORATING BAFFLES IN THE STANDARD CHAMBER WHICH RESTRICT THE FLOW OF TESTING FLUID THEREBY REDUCING OSCILLATION AND HASTENING STANDARD CONDITIONS, THE BAFFLES ARE PREFERABLY IN THE FORM OF PLATES OR DISCS SPACED LONGITUDINALLY OF THE BALLAST CHAMBER WITH EACH HAVING A SPACE BETWEEN ITS OUTER PERIPHERY AND THE WALL OF THE CHAMBER, OR FORMED WITH PERFORATIONS THEREIN, OR A COMBINATION OF BOTH.
Inventors
- 👤 Edward N Kostielney Jr
Bibliographic Details
Claims Analysis
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |