US3365592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piezoelectric relay
Assignee: Siemens AG
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Filing: 1965-10-22
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Granted: 1968-01-23
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Expires: 1985-10-22
Abstract
No abstract record available.
Inventors
- 👤 Herbert Krautwald
- 👤 Helmut Schedele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:21
CPC Classifications
H; H01; H01H; H01H57/00; H10; H10N; H10N30/00; H10N30/20; H10N30/204; H10N30/2041; H10N30/2042; H10N30/2044; H05; H05K; H05K2201/00; H05K2201/03; H05K2201/0332; H05K2201/0335; H05K2201/0355; H05K2203/00; H05K2203/07; H05K2203/0703; H05K2203/0723; H05K3/00; H05K3/38; H05K3/389
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A PIEZOELECTRIC RELAY CONNECTED TO A SOURCE OF CONTROL VOLTAGE HAVING A SWITCHING CONTACT COMPRISING A POLARIZED BAR COMPOSED OF ELECTROSTRICTIVE MATERIAL HAVING ITS POLARIZATION IN LAYERS IN THE LONGITUDINAL DIRECTION, AND A PLURALITY OF ELECTRICALLY-CONDUCTIVE COATINGS VAPORIZED-ON SAID BAR, EACH OF SAID COATINGS HAVING A COMB-LIKE SHAPE FOR COOPERATING WITH A CORRESPONDING CONDUCTOR IN AN INTERLEAVED SPACED-APAST RELATIONSHIP, SAID BAR HAVING A U-SHAPED CONFIGURATION IN THE PLANE OF ITS MAXIMUM SURFACE EXTENSION, EACH OF THE TWO SHANKS RESULTING THEREFROM HAVING OPPOSITE POLARIZATION.
Claim 2
Dependent Claim
83 words
A PIEZOELECTRIC RELAY CONNECTED TO A SOURCE OF CONTROL VOLTAGE HAVING A SWITCHING CONTACT COMPRISING A POLARIZED BAR COMPOSED OF ELECTROSTRICTIVE MATERIAL HAVING ITS POLARIZATION IN LAYERS IN THE LONGITUDINAL DIRECTION, AND A PLURALITY OF ELECTRICALLY-CONDUCTIVE COATINGS VAPORIZED-ON SAID BAR, EACH OF SAID COATINGS HAVING A COMB-LIKE SHAPE FOR COOPERATING WITH A CORRESPONDING CONDUCTOR IN AN INTERLEAVED SPACED-APAST RELATIONSHIP, SAID BAR HAVING A U-SHAPED CONFIGURATION IN THE PLANE OF ITS MAXIMUM SURFACE EXTENSION, EACH OF THE TWO SHANKS RESULTING THEREFROM HAVING OPPOSITE POLARIZATION.
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) | 1971-01-22 | 1971-07-24 | 1972-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-22 | 1975-07-24 | 1976-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-22 | 1979-07-24 | 1980-01-23 | $7700.00 | Window Closed / Lapsed |