Patent US1681948A successfully refreshed from Google Patents.
Patent US3854326A successfully refreshed from Google Patents.
US3854326A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary ultrasonic testing apparatus
Assignee: British Steel PLC
•
Filing: 1973-05-31
•
Granted: 1974-12-17
•
Expires: 1993-05-31
Abstract
Abstract Rotary ultrasonic testing apparatus of the kind used in testing steel tubes for example by rotating an ultrasonic probe assembly in a closed pitched spiral about each tube, comprises an annular stator carrying a first relaceable hollow tube guideway; a replaceable annular ultrasonic probe assembly disposed beyond one end of the stator and mounted for rotation on the stator; and a second replaceable hollow tube guideway mounted separate from the stator on the opposite side of the probe assembly from the stator.
Inventors
- 👤 M Hetherington
- 👤 P Atkinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:01
CPC Classifications
G; G01; G01N; G01N29/00; G01N29/22; G01N29/26
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
62 words
Rotary ultrasonic testing apparatus comprising a single annular stator carrying a first replaceable hollow tube guideway; a replaceable annular ultrasonic probe assembly disposed beyond one end of the stator and mounted for rotation solely on said single annular stator; and a second replaceable hollow tube guideway mounted separate from the stator on the opposite side of the probe assembly from the stator.
Claim 2
Dependent Claim
62 words
Rotary ultrasonic testing apparatus comprising a single annular stator carrying a first replaceable hollow tube guideway; a replaceable annular ultrasonic probe assembly disposed beyond one end of the stator and mounted for rotation solely on said single annular stator; and a second replaceable hollow tube guideway mounted separate from the stator on the opposite side of the probe assembly from the stator.
Claim 3
Dependent Claim
34 words
Testing apparatus as claimed in claim 1 wherein the first guideway comprises a sleeve fitting within the stator and replaceable by sliding away from the stator at the end opposite to the probe assembly.
Claim 4
Dependent Claim
24 words
Testing apparatus as claimed in claim 1 wherein the second guideway comprises a sleeve fitting within annular mounting replaceable by sliding from the mounting.
Claim 5
Dependent Claim
26 words
Testing apparatus as claimed in claim 1 wherein the ultrasonic probe assembly is secured to one end of a sleeve mounted for rotation upon the stator.
Claim 6
Dependent Claim
28 words
Testing apparatus as claimed in claim 1 wherein the first and second guideways have closely fitting internal annular inserts to provide close tolerance guides for tubes passing therethrough.
Claim 7
Dependent Claim
85 words
Rotary ultrasonic testing apparatus comprising a single annular stator carrying a first replaceable hollow tube guideway; a replaceable annular ultrasonic probe assembly disposed beyond one end of the stator and mounted for rotation solely on Said single annular stator, said probe assembly comprising an annular chamber open on its radially inner side within which are mounted a plurality of ultrasonic probe transducers; and a second replaceable hollow tube guideway mounted separate from the stator on the opposite side of the probe assembly from the stator.
Claim 8
Dependent Claim
85 words
Rotary ultrasonic testing apparatus comprising a single annular stator carrying a first replaceable hollow tube guideway; a replaceable annular ultrasonic probe assembly disposed beyond one end of the stator and mounted for rotation solely on Said single annular stator, said probe assembly comprising an annular chamber open on its radially inner side within which are mounted a plurality of ultrasonic probe transducers; and a second replaceable hollow tube guideway mounted separate from the stator on the opposite side of the probe assembly from the stator.
Claim 9
Dependent Claim
57 words
Testing apparatus as claimed in claim 6 wherein each probe transducer comprises a cylindrical shaft having an ultrasonic transducer element carried on one side thereof, the shaft being rotatably mounted in a bore in the probe assembly extending parallel to the rotational axis of the assembly, whereby alignment of the probe transducers can be adjusted while mounted.
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) | 1977-12-16 | 1978-06-17 | 1978-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-16 | 1982-06-17 | 1982-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-16 | 1986-06-17 | 1986-12-17 | $7700.00 | Window Closed / Lapsed |