Patent US3946599A successfully refreshed from Google Patents.
US3946599A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid applicator for ultra-sonic transducer
Assignee: Individual
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Filing: 1974-11-08
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Granted: 1976-03-30
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Expires: 1994-11-08
Abstract
Abstract Attachments for an ultrasonic transducer used to measure discontinuities in a test specimen. The attachments constitute a series of liquid applicator heads selectively attachable to the transducer in accordance with differently contoured test specimens and specimen materials. Each applicator head is adapted to distribute a film of coupling liquid to the test specimen to improve energy transmission between the transducer and specimen. The invention described herein may be manufactured, used, and licensed by or for the Government for governmental purposes without payment to me of any royalty thereon.
Inventors
- 👤 Jacob Patt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:39
CPC Classifications
G; G10; G10K; G10K11/00; G10K11/02; G01; G01N; G01N29/00; G01N29/22; G01N29/28
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
149 words
In an ultrasonic transducer assembly for locating variations and discontinuities in a test specimen comprising an electro-mechanical transducer head that includes an oscillatable element, passage means for locating a coupling liquid in energy-transmitting relation to the oscillatable element, and liquid source means for replenishing liquid that flows through the passage means: the improvement comprising a number of liquid applicators individually connectable to the passage means to apply the coupling liquid to the test specimen surface; each applicator being detachable from the passage means to permit interchangeable use of differently configured applicators with a single transducer head; each applicator comprising a liquid entrance fitting detachably connectable to the transducer passage means, a liquid exit mouth remote from the entrance fitting, and a conduit interconnecting the entrance fitting and exit mouth; one of said applicators having an exit mouth that has a relatively small transverse area for traversing small specimen surfaces.
Claim 2
Dependent Claim
149 words
In an ultrasonic transducer assembly for locating variations and discontinuities in a test specimen comprising an electro-mechanical transducer head that includes an oscillatable element, passage means for locating a coupling liquid in energy-transmitting relation to the oscillatable element, and liquid source means for replenishing liquid that flows through the passage means: the improvement comprising a number of liquid applicators individually connectable to the passage means to apply the coupling liquid to the test specimen surface; each applicator being detachable from the passage means to permit interchangeable use of differently configured applicators with a single transducer head; each applicator comprising a liquid entrance fitting detachably connectable to the transducer passage means, a liquid exit mouth remote from the entrance fitting, and a conduit interconnecting the entrance fitting and exit mouth; one of said applicators having an exit mouth that has a relatively small transverse area for traversing small specimen surfaces.
Claim 3
Dependent Claim
22 words
The transducer assembly of claim 1: wherein the conduit in at least one of the applicators is formed of a flexible material.
Claim 4
Dependent Claim
28 words
The transducer assembly of claim 2: the flexible conduit having a sufficient length to permit manipulation of the applicator around obstructions in the vicinity of the specimen surface.
Claim 5
Dependent Claim
60 words
The transducer assembly of claim 1: each applicator including a porous wall located at its exit mouth for controlling outflow therethrough, the openings in said wall being sized so that liquid within the openings transmits wave energy substantially undampened by the wall material; said porous wall having an outer surface conforming to the contour of the specimen surface under test.
Claim 6
Dependent Claim
31 words
The transducer assembly of claim 4: at least one of the applicators including a conduit that has an appreciable length, whereby the transducer head is locatable remote from the specimen surface.
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) | 1979-03-30 | 1979-09-29 | 1980-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-30 | 1983-09-29 | 1984-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-30 | 1987-09-29 | 1988-03-30 | $7700.00 | Window Closed / Lapsed |