US3218488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transducer
Assignee: Branson Ultrasonics Corp
•
Filing: 1961-08-01
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Granted: 1965-11-16
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Expires: 1981-08-01
Abstract
No abstract record available.
Inventors
- 👤 Stanley E Jacke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:13
CPC Classifications
B; B06; B06B; B06B1/00; B06B1/02; B06B1/06; B06B1/0607; B06B1/0611; B06B1/0618
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A COMPOSITE SONIC TRANSDUCER COMPRISING IN COMBINATION TWO PIEZOELECTRIC SYSTEMS, EACH SYSTEM COMPRISING AT LEAST ONE PIEZOELECTRIC ELEMENT IN THE FORM OF AN ANNULAR DISK HAVING A CENTRAL HOLE, RESONATING AND FREQUENCY CONTROLLING METALLIC MASSES ON EITHER SIDE OF THE TWO SYSTEMS, THE METALLIC MASSES BEING BOLTED TOGETHER CENTRALLY THROUGH THE CENTRAL HOLES OF THE DISKS BY A METALLIC BOLT OF SMALLER CROSS-SECTION THAN THE CENTRAL HOLES, AND ANNULAR INSULATING DISKS SEPARATING SURFACES AT DIFFERENT OPERATING POTENTIALS, THE METALLIC MASSES BEING CONNECTGED TO A SINGLE EXTERNAL POTENTIAL WHICH CONSTITUTES A COMMON POTENTIAL OF THE TWO PIEZOELECTRIC SYSTEMS AND SEPARATE CONNECTIONS FROM THE OTHER SURFACES OF EACH SYSTEM TO SEPARATE EXTERNAL CIRCUITS WHEREBY THE METALLIC MASSES REQUIRE NO INSULATION TO THE CENTRAL CLAMPING BOLT.
Claim 2
Dependent Claim
123 words
A COMPOSITE SONIC TRANSDUCER COMPRISING IN COMBINATION TWO PIEZOELECTRIC SYSTEMS, EACH SYSTEM COMPRISING AT LEAST ONE PIEZOELECTRIC ELEMENT IN THE FORM OF AN ANNULAR DISK HAVING A CENTRAL HOLE, RESONATING AND FREQUENCY CONTROLLING METALLIC MASSES ON EITHER SIDE OF THE TWO SYSTEMS, THE METALLIC MASSES BEING BOLTED TOGETHER CENTRALLY THROUGH THE CENTRAL HOLES OF THE DISKS BY A METALLIC BOLT OF SMALLER CROSS-SECTION THAN THE CENTRAL HOLES, AND ANNULAR INSULATING DISKS SEPARATING SURFACES AT DIFFERENT OPERATING POTENTIALS, THE METALLIC MASSES BEING CONNECTGED TO A SINGLE EXTERNAL POTENTIAL WHICH CONSTITUTES A COMMON POTENTIAL OF THE TWO PIEZOELECTRIC SYSTEMS AND SEPARATE CONNECTIONS FROM THE OTHER SURFACES OF EACH SYSTEM TO SEPARATE EXTERNAL CIRCUITS WHEREBY THE METALLIC MASSES REQUIRE NO INSULATION TO THE CENTRAL CLAMPING BOLT.
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) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |