US3560772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piezoelectric crystal mounting employing resilient partially conductive support pads
Assignee: Clevite Corp
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Filing: 1969-09-09
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Granted: 1971-02-02
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Expires: 1989-09-09
Abstract
Abstract There is provided a novel mounting means for a piezoelectric resonator within a filter assembly, said mounting means comprise a conductor backing support on both sides of the resonator element connected thereto by means of wedge-shaped resilient pads secured on said conductor backing, each pad having a first conductive part resting on the electrode means of said resonator to effect electrical contact, and a second nonconductive part for support, thereby minimizing spurious and mechanical resonances, variations in bandwidths, and insertion losses.
Inventors
- 👤 Antonio Lungo
- 👤 Gordon J Conley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:30
CPC Classifications
H; H03; H03H; H03H9/00; H03H9/02; H03H9/05; H03H9/09
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
24 words
Mounting means for a piezoelectric resonator in a filter assembly as described in claim 1 wherein said support members are held by spring means.
Claim 2
Dependent Claim
24 words
Mounting means for a piezoelectric resonator in a filter assembly as described in claim 1 wherein said resilient pads are made of silicone rubber.
Claim 3
Dependent Claim
26 words
Mounting means for a piezoelectric resonator in a filter assembly as described in claim 1 wherein said support member is made of a printed circuit board.
Claim 4
Dependent Claim
29 words
Mounting means of a piezoelectric resonator in a filter assembly as described in claim 2 wherein the resilient pads are wedge-shaped with the narrow edge contacting said electrode means.
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) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |