US4479069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lead attachment for an acoustic transducer
Assignee: Koninklijke Philips NV
•
Filing: 1981-11-12
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Granted: 1984-10-23
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Expires: 2001-11-12
Abstract
Abstract An acoustic transducer having a crystal stack or crystal stacks forming shelves, and leads adhered to a flexible sheet having an opening that fits over the part of the stack that extends above the shelves so as to permit the leads to be aligned with and make electrical contact with the respective crystals.
Inventors
- 👤 David G. Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:31
CPC Classifications
H; H04; H04R; H04R17/00; B; B06; B06B; B06B1/00; B06B1/02; B06B1/06; B06B1/0607; B06B1/0622
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
160 words
A transducer assembly including a first array of parallel crystals, a second array of parallel crystals having faces respectively adhered to the faces of the crystals of the first array with the faces of the crystals of said first array protruding beyond the faces of the crystals of the second array so as to form at least one shelf, electrical conductors respectively in contact with the adhered faces of the crystals of each array, the said conductors respectively extending along the faces of said first array that form said shelf, and a sheet of insulating material having means defining an opening therein, said opening closely fitting around the second array at the point where the faces of its crystals are adhered to the faces of the crystals of said first array, said sheet carrying separate electrical conductors that are respectively in contact with the electrical conductors on the faces of the crystals of said first array that form said shelf.
Claim 2
Dependent Claim
160 words
A transducer assembly including a first array of parallel crystals, a second array of parallel crystals having faces respectively adhered to the faces of the crystals of the first array with the faces of the crystals of said first array protruding beyond the faces of the crystals of the second array so as to form at least one shelf, electrical conductors respectively in contact with the adhered faces of the crystals of each array, the said conductors respectively extending along the faces of said first array that form said shelf, and a sheet of insulating material having means defining an opening therein, said opening closely fitting around the second array at the point where the faces of its crystals are adhered to the faces of the crystals of said first array, said sheet carrying separate electrical conductors that are respectively in contact with the electrical conductors on the faces of the crystals of said first array that form said shelf.
Claim 3
Dependent Claim
49 words
A transducer assembly as set forth in claim 1 wherein two shelves are formed and wherein said electrical conductors on one side of said opening are aligned with alternate crystals and the electrical conductors on the other side of said opening are aligned with crystals between said alternate crystals.
Claim 4
Dependent Claim
34 words
A transducer assembly as set forth in claim 1 wherein the insulating material of said sheet is flexible so that it can be bent over the ends of the crystals of said first array.
References Cited (Backward Citations)
US3248779A
Cited
US3818415A
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US3952387A
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US4240003A
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US4277712A
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US4381470A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-10-23 | 1988-04-23 | 1988-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-23 | 1992-04-23 | 1992-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-23 | 1996-04-23 | 1996-10-23 | $7700.00 | Window Closed / Lapsed |