US4058000A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrasonic immersion type testing
Assignee: Vodafone GmbH
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Filing: 1977-02-22
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Granted: 1977-11-15
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Expires: 1997-02-22
Abstract
Abstract The entrance angle of an ultrasonic beam into a test object results from refraction at the interface thereof with water. The physical orientation of the transducer directing a beam towards the object is maintained, but the refraction angle is varied through controlled adjustment of the water temperature.
Inventors
- 👤 Karl Ries
- 👤 Kurt Hannoschock
- 👤 Gunter Simoneit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:23
CPC Classifications
G; G01; G01N; G01N29/00; G01N29/22; G01N29/32; G01N29/326; G01N29/04; G01N29/043; G01N29/30; G01N2291/00; G01N2291/04; G01N2291/042; G01N2291/0421; G01N2291/0422; G01N2291/044; G01N2291/10; G01N2291/101; G01N2291/102; G01N2291/26; G01N2291/263; G01N2291/2634
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
70 words
In a method of inspecting test objects for detecting defects by means of ultrasonics using the immersion test method, wherein a transducer directs a beam of ultrasonic waves towards the test object through water, the improvement comprising: the step of adjusting the temperature of the water for a fixed orientation of said transducer relative to the test object, to change the refraction angle of the beam into the test object.
Claim 2
Dependent Claim
70 words
In a method of inspecting test objects for detecting defects by means of ultrasonics using the immersion test method, wherein a transducer directs a beam of ultrasonic waves towards the test object through water, the improvement comprising: the step of adjusting the temperature of the water for a fixed orientation of said transducer relative to the test object, to change the refraction angle of the beam into the test object.
Claim 3
Dependent Claim
21 words
In a method as in claim 1, and including the step following the adjusting step, of maintaining the water temperature constant.
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) | 1980-11-14 | 1981-05-16 | 1981-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-11-14 | 1985-05-16 | 1985-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-11-14 | 1989-05-16 | 1989-11-15 | $7700.00 | Window Closed / Lapsed |