Patent US3791201A successfully refreshed from Google Patents.
US3791201A
Expired / Lapsed
US
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Ultrasonic testing device
Assignee: Realisations Ultrasoniques SA
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Filing: 1972-08-19
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Granted: 1974-02-12
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Expires: 1992-08-19
Abstract
Abstract Improvement to devices for ultrasonic testing and measurement of a cylindrical product by helicoidal exploration of the product. A rotary head comprising transducers placed in a radial chamber is so positioned that each transducer faces a mirror and that the ultrasonic ray is reflected at a suitable angle on to the part under test, the chamber remaining filled with water by centrifugal force. For application to dimensional testing and fault-seeking in industrially manufactured tubes or bars.
Inventors
- 👤 J Dory
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:11
CPC Classifications
G; G01; G01N; G01N29/00; G01N29/22; G01N29/26
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
186 words
Ultrasonic inspection apparatus for cylindrical elongated elements, comprising: a rotatable housing; a liquid containing chamber formed in said housing and having left and right side ports for receiving and passing a cylindrical elongated element through said chamber along an axis between said ports; a liquid within said chamber and drive means for rotating said chamber about said axis; guide means for guiding said cylindrical elongated element along said axis within said chamber and through said ports; first and second blocks mounted independently removable within said housing and connected thereto; a plurality of ultrasonic transducers mounted on the first block; electrical connector means, whereby said transducers may be connected to ultrasonic transmitting and receiving equipment for transmiTting and receiving an ultrasonic beam of energy; and a plurality of acoustic mirrors mounted on the second block, each of the transducers cooperating with one associated mirror, the transducer and the associated mirror having a common axis which is parallel to the said axis and being positioned facing each other whereby substantially the whole energy of the ultrasonic beam is transmitted from the transducer to the associated mirror and vice-versa.
Claim 2
Dependent Claim
186 words
Ultrasonic inspection apparatus for cylindrical elongated elements, comprising: a rotatable housing; a liquid containing chamber formed in said housing and having left and right side ports for receiving and passing a cylindrical elongated element through said chamber along an axis between said ports; a liquid within said chamber and drive means for rotating said chamber about said axis; guide means for guiding said cylindrical elongated element along said axis within said chamber and through said ports; first and second blocks mounted independently removable within said housing and connected thereto; a plurality of ultrasonic transducers mounted on the first block; electrical connector means, whereby said transducers may be connected to ultrasonic transmitting and receiving equipment for transmiTting and receiving an ultrasonic beam of energy; and a plurality of acoustic mirrors mounted on the second block, each of the transducers cooperating with one associated mirror, the transducer and the associated mirror having a common axis which is parallel to the said axis and being positioned facing each other whereby substantially the whole energy of the ultrasonic beam is transmitted from the transducer to the associated mirror and vice-versa.
Claim 3
Dependent Claim
52 words
Ultrasonic inspection apparatus as claimed in claim 1, wherein each of the mirrors is in the shape of a cylinder mounted within a housing in the second block and having a bevelled reflecting base surface, means cooperating with the said cylinder for adjusting the angular position of the cylinder within the housing.
Claim 4
Dependent Claim
133 words
Ultrasonic inspection apparatus as claimed in claim 1, wherein the housing is shaped as a generally cylindrical pot having left and right end openings, a hollow shaft connected to said drive means being mounted in the left end opening, the first block being generally of annular shape and mounted adjacent the hollow shaft within the housing, the second block being of generally annular shape and mounted in the right end opening, a stationary tube being mounted concentric with the hollow shaft and the first block and forming an annular space therewith, a further tube being mounted concentric to the second block and integral therewith, the first and second blocks being spaced apart so as to define the said chamber, and means for introducing the said liquid through said annular space within said chamber.
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) | 1977-02-11 | 1977-08-13 | 1978-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-11 | 1981-08-13 | 1982-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-11 | 1985-08-13 | 1986-02-12 | $7700.00 | Window Closed / Lapsed |