Patent US3249833A successfully refreshed from Google Patents.
US3249833A
Expired / Lapsed
US
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Capacitor transducer
Assignee: Individual
•
Filing: 1964-11-16
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Granted: 1966-05-03
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Expires: 1984-11-16
Abstract
No abstract record available.
Inventors
- 👤 Robert E Vosteen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:22
CPC Classifications
G; G01; G01L; G01L9/00; G01L9/0041; G01L9/0072; G01L13/00; G01L13/02; G01L13/025; G01L19/00; G01L19/04; G01L9/0042; G01L9/0048; G01L9/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
AN ELECTRICAL CAPACITOR DEVICE COMPRISING A PAIR OF CAPACITOR PLATES ARRANGED PARALLEL TO EACH OTHER, A THIN METALLIC FOIL PARALLEL TO AND DISPOSED BETWEEN SAID PLATES, A PAIR OF ANNULAR FLANGES HAVING PARALLEL FACES OPPISITE EACH OTHER WITH SAID FOIL THEREBETWEEN, AND MEANS IN CONTACT WITH THE FOIL FOR STRECTCHING IT WHILE CLAMPING IT BETWEEN THE FLANGES, SAID MEANS COMPRISING SURFACE ON AT LEAST ONE OF SAID FLANGE FACES DEFINING AN ANNULAR GROOVE THEREIN, A RING LYING PARTIALLY IN SAID GROOVE, SIAD FOIL BEING OF SUCH SIZE AS TO OVERLIE SAID RING AND GROOVE SO AS TO BE STRETCHED WHEN THE FLANGES ARE CLAMPED TOGETHER, AND MEANS FOR FASTENING SAID FLANGE TOGETHER TO CLAMP THE FOIL BETWEEN THE FLANGES AFTER STRETCHING THE FOIL BETWEEN SAID RING AND GROOVE.
Claim 2
Dependent Claim
128 words
AN ELECTRICAL CAPACITOR DEVICE COMPRISING A PAIR OF CAPACITOR PLATES ARRANGED PARALLEL TO EACH OTHER, A THIN METALLIC FOIL PARALLEL TO AND DISPOSED BETWEEN SAID PLATES, A PAIR OF ANNULAR FLANGES HAVING PARALLEL FACES OPPISITE EACH OTHER WITH SAID FOIL THEREBETWEEN, AND MEANS IN CONTACT WITH THE FOIL FOR STRECTCHING IT WHILE CLAMPING IT BETWEEN THE FLANGES, SAID MEANS COMPRISING SURFACE ON AT LEAST ONE OF SAID FLANGE FACES DEFINING AN ANNULAR GROOVE THEREIN, A RING LYING PARTIALLY IN SAID GROOVE, SIAD FOIL BEING OF SUCH SIZE AS TO OVERLIE SAID RING AND GROOVE SO AS TO BE STRETCHED WHEN THE FLANGES ARE CLAMPED TOGETHER, AND MEANS FOR FASTENING SAID FLANGE TOGETHER TO CLAMP THE FOIL BETWEEN THE FLANGES AFTER STRETCHING THE FOIL BETWEEN SAID RING AND GROOVE.
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) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |