US4096738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for testing filled glass containers
Assignee: Bayer AG
•
Filing: 1977-03-09
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Granted: 1978-06-27
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Expires: 1997-03-09
Abstract
Abstract The containers to be tested are brought into an ultrasonic wave field of which the intensity is assessed so that defective containers are destroyed, while mechanically perfect containers remain unaffected. Since the containers destroyed fall out of their holders, sorting takes place simultaneously.
Inventors
- 👤 Roland Rupp
- 👤 Hildegard Schnoring
- 👤 Erhard Schellmann
- 👤 Kurt Bauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:15
CPC Classifications
G; G01; G01N; G01N29/00; G01N29/04; G01N29/045; G01M; G01M3/00; G01M3/02; G01M3/04; G01M3/24; G01N2291/00; G01N2291/02; G01N2291/023; G01N2291/0232
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
61 words
A method for testing filled glass containers in particular, ampoules for leaks and mechanical strength, comprising bringing the containers into an ultrasonic wave field produced by an ultrasonic source, without impact between the containers and the source and setting the intensity of the ultrasonic source to intensity at a predetermined frequency to destroy defective containers, while mechanically perfect containers remain unaffected.
Claim 2
Independent Claim
61 words
A method for testing filled glass containers in particular, ampoules for leaks and mechanical strength, comprising bringing the containers into an ultrasonic wave field produced by an ultrasonic source, without impact between the containers and the source and setting the intensity of the ultrasonic source to intensity at a predetermined frequency to destroy defective containers, while mechanically perfect containers remain unaffected.
Claim 3
Dependent Claim
17 words
A method as claimed in claim 1, wherein the containers are guided successively past the ultrasonic source.
Claim 4
Dependent Claim
17 words
A method as claimed in claim 1, wherein the ultrasonic source is coupled directly to the container.
Claim 5
Dependent Claim
20 words
A method as claimed in claim 1, wherein the ultrasonic source is indirectly coupled to each container via a fluid.
Claim 6
Dependent Claim
27 words
A method as claimed in claim 1, wherein the ultrasonic source is an ultrasonic generator having an intensity in the range of from 600 to 1500 W.
Claim 7
Dependent Claim
25 words
A method as claimed in claim 5, wherein the ultrasonic generator is pressed against the container with a force of from 1 to 6 N.
Claim 8
Dependent Claim
25 words
A method as claimed in claim 6, wherein the ultrasonic generator is pressed against the container with a force of from 1.4 to 2 N.
Claim 9
Dependent Claim
17 words
A method according to claim 5, wherein the ultrasonic generator has a frequency of approximately 20 kHz.
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) | 1981-06-26 | 1981-12-26 | 1982-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-26 | 1985-12-26 | 1986-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-26 | 1989-12-26 | 1990-06-27 | $7700.00 | Window Closed / Lapsed |