Patent US3171048A successfully refreshed from Google Patents.
US3171048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crystal frequency temperature compensation
Assignee: Individual
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Filing: 1963-06-07
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Granted: 1965-02-23
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Expires: 1983-06-07
Abstract
No abstract record available.
Inventors
- 👤 Eduard A Gerber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:27
CPC Classifications
H; H03; H03L; H03L1/00; H03L1/02; H03L1/028
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A CRYSTAL FREQUENCY TEMPERATURE COMPENSATING DEVICE COMPRISING A QUARTZ CRYSTAL HAVING TWO PARALLEL PLANE FACES AND A SUBSTANTIALLY CIRCULAR EDGE; AT LEAST ON SLUG, HAVING OPPOSING SIDES PERPENDICULAR TO SAID FACES, INSET WITHIN SAID CRYSTAL; AND OPPOSING SURFACES WITHIN SAID CRYSTAL, PERPENDICULAR TO SAID FACES AND TO A GIVEN AXIS OF SAID CRYSTAL, ORIENTED TO ENGAGE SAID OPPOSING SIDES OF SAID SLUG; SAID SLUG HAVING A COEFFICIENT OF EXPANSION OTHER THAN THAT ALONG SAID GIVEN AXIS OF SAID CRYSTAL, WHEREBY A GIVEN CHANGE IN TEMPERATURE OF SAID CRYSTAL AND SAID SLUG APPLIES SUFFICIENT PRESSURE BETWEEN SAID OPPOSING SURFACES WITHIN SAID CRYSTAL TO CHANGE THE FREQUENCY OF SAID CRYSTAL BY AN AMOUNT EQUAL AND OPPOSITE TO THE CHANGE IN THE FREQUENCY OF SAID CRYSTAL DUE TO SAID GIVEN CHANGE IN TEMPERATURE.
Claim 2
Dependent Claim
130 words
A CRYSTAL FREQUENCY TEMPERATURE COMPENSATING DEVICE COMPRISING A QUARTZ CRYSTAL HAVING TWO PARALLEL PLANE FACES AND A SUBSTANTIALLY CIRCULAR EDGE; AT LEAST ON SLUG, HAVING OPPOSING SIDES PERPENDICULAR TO SAID FACES, INSET WITHIN SAID CRYSTAL; AND OPPOSING SURFACES WITHIN SAID CRYSTAL, PERPENDICULAR TO SAID FACES AND TO A GIVEN AXIS OF SAID CRYSTAL, ORIENTED TO ENGAGE SAID OPPOSING SIDES OF SAID SLUG; SAID SLUG HAVING A COEFFICIENT OF EXPANSION OTHER THAN THAT ALONG SAID GIVEN AXIS OF SAID CRYSTAL, WHEREBY A GIVEN CHANGE IN TEMPERATURE OF SAID CRYSTAL AND SAID SLUG APPLIES SUFFICIENT PRESSURE BETWEEN SAID OPPOSING SURFACES WITHIN SAID CRYSTAL TO CHANGE THE FREQUENCY OF SAID CRYSTAL BY AN AMOUNT EQUAL AND OPPOSITE TO THE CHANGE IN THE FREQUENCY OF SAID CRYSTAL DUE TO SAID GIVEN CHANGE IN TEMPERATURE.
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) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |