US3286139A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trimmer condenser
Assignee: Standard Kollsman Industries Inc
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Filing: 1965-09-02
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Granted: 1966-11-15
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Expires: 1985-09-02
Abstract
No abstract record available.
Inventors
- 👤 Fred W Edwards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:52
CPC Classifications
H; H01; H01G; H01G5/00; H01G5/04; H01G5/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A TRIMMER CONDENSER INCLUDING A FIRST AND SECOND TERMINAL, A FIXED CAPACITIVE SECTION AND A VARIABLE CAPACITIVE SECTION ELECTRICALLY CONNECTED BETWEEN SAID TERMINALS, SAID FIXED CAPACITIVE SECTION INCLUDING A DISC WITH FIRST AND SECOND METALLIC LAYERS ON OPPOSED FACES THEREOF, SAID VARIABLE SECTION INCLUDING A TUBULAR MEMBER HAVING AN EXTERNAL METALLIC LAYER ELECTRICALLY CONNECTED TO SAID FIRST DISC LAYER, SAID TUBULAR LAYER ELECTRICALLY CONNECTED TO SAID FIRST TERMINAL,SAID SECOND DISC LAYER ELECTRICALLY CONNECTED TO SAID SECOND TERMINAL, MEANS FOR ADJUSTING THE CAPACITANCE OF SAID VARIABLE SECTION SUCH THAT THE COMBINED CAPACITANCE OF SAID FIXED AND VARIABLE SECTIONS, AS PRESENTED TO SAID FIRST AND SECOND TERMINALS, IS ADJUSTABLE.
Claim 2
Dependent Claim
107 words
A TRIMMER CONDENSER INCLUDING A FIRST AND SECOND TERMINAL, A FIXED CAPACITIVE SECTION AND A VARIABLE CAPACITIVE SECTION ELECTRICALLY CONNECTED BETWEEN SAID TERMINALS, SAID FIXED CAPACITIVE SECTION INCLUDING A DISC WITH FIRST AND SECOND METALLIC LAYERS ON OPPOSED FACES THEREOF, SAID VARIABLE SECTION INCLUDING A TUBULAR MEMBER HAVING AN EXTERNAL METALLIC LAYER ELECTRICALLY CONNECTED TO SAID FIRST DISC LAYER, SAID TUBULAR LAYER ELECTRICALLY CONNECTED TO SAID FIRST TERMINAL,SAID SECOND DISC LAYER ELECTRICALLY CONNECTED TO SAID SECOND TERMINAL, MEANS FOR ADJUSTING THE CAPACITANCE OF SAID VARIABLE SECTION SUCH THAT THE COMBINED CAPACITANCE OF SAID FIXED AND VARIABLE SECTIONS, AS PRESENTED TO SAID FIRST AND SECOND TERMINALS, IS ADJUSTABLE.
References Cited (Backward Citations)
DE628499C
Cited
US3067369A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |