Patent US3612920A successfully refreshed from Google Patents.
US3612920A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wheel-type transducer probe
Assignee: Branson Ultrasonics Corp
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Filing: 1970-10-05
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Granted: 1971-10-12
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Expires: 1990-10-05
Abstract
Abstract A wheel-type ultrasonic transducer probe comprises a hub portion and a rotatable rim portion, both made of substantially rigid thermoplastic material. The probe is dimensioned to be useful for thickness gauging and to this end is constructed to cause the ultrasonic signal to transverse equal distances in the hub portion and rim portion.
Inventors
- 👤 Walter J Bantz
- 👤 Chan-Koo Chung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:04
CPC Classifications
G; G10; G10K; G10K11/00; G10K11/004; B; B06; B06B; B06B1/00; B06B1/02; B06B1/06; B06B1/0644; B06B1/0662; B06B1/067
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
116 words
A wheel-type transducer probe comprising: a hub of substantially rigid material having a circular peripheral surface; an annularly shaped rim of substantially rigid material disposed on and for rotation about said peripheral surface of said hub, said peripheral surface and inner surface of said rim being in sliding contact with each other; a piezoelectric element disposed in said hub for transmitting when energized with electrical energy an ultrasonic signal in a radial direction through a portion of said hub toward said peripheral surface and rim, and a liquid couplant film disposed between said sliding contact surfaces at least at the location at which the signal from said element is transmitted from said hub to said rim.
Claim 2
Dependent Claim
116 words
A wheel-type transducer probe comprising: a hub of substantially rigid material having a circular peripheral surface; an annularly shaped rim of substantially rigid material disposed on and for rotation about said peripheral surface of said hub, said peripheral surface and inner surface of said rim being in sliding contact with each other; a piezoelectric element disposed in said hub for transmitting when energized with electrical energy an ultrasonic signal in a radial direction through a portion of said hub toward said peripheral surface and rim, and a liquid couplant film disposed between said sliding contact surfaces at least at the location at which the signal from said element is transmitted from said hub to said rim.
Claim 3
Dependent Claim
20 words
A wheel-type transducer probe as set forth in claim 1, said hub and rim being made of polymeric synthetic material.
Claim 4
Dependent Claim
15 words
A wheel-type transducer probe as set forth in claim 2, said synthetic material being polystyrene.
Claim 5
Dependent Claim
44 words
A wheel-type transducer probe as set forth in claim 1, said piezoelectric element being disposed in such a manner that the distance traversed by the ultrasonic signal in the hub is substantially equal to the distance traversed by the ultrasonic signal in said rim.
Claim 6
Dependent Claim
20 words
A wheel-type transducer probe as set forth in claim 1, said rim having a thickness of at least one-fourth inch.
Claim 7
Dependent Claim
35 words
A wheel-type transducer probe as set forth in claim 1, said hub including means for storing a supply of liquid couplant film which is adapted to flow into the space between said sliding contact surfaces.
Claim 8
Dependent Claim
60 words
A wheel-type transducer probe as set forth in claim 1, and a pair of side plates disposed for supporting said hub within said rim, electrical connector means mounted to one of said side plates, electrical conductor means connecting said connector means with said piezoelectric element, and fastening means disposed for holding said side plates against said hub and said rim.
Claim 9
Dependent Claim
15 words
A wheel-type transducer probe as set forth in claim 7, said side plates being metallic.
Claim 10
Dependent Claim
28 words
A wheel-type transducer probe as set forth in claim 1, said hub having a radially disposed recess, said piezoelectric element being bonded to a surface of said recess.
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) | 1974-10-11 | 1975-04-12 | 1975-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-11 | 1979-04-12 | 1979-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-11 | 1983-04-12 | 1983-10-12 | $7700.00 | Window Closed / Lapsed |