US3263093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ramp generator employing constant current sink means controlling capacitor charging current from constant current source
Assignee: Honeywell Inc
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Filing: 1963-10-02
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Granted: 1966-07-26
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Expires: 1983-10-02
Abstract
No abstract record available.
Inventors
- 👤 David P Erdmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:53
CPC Classifications
H; H03; H03K; H03K4/00; H03K4/06; H03K4/08; H03K4/83; H03K4/84
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A LINEAR RAMP GENERATOR COMPRISING: A SOURCE OF ENERGY; CONSTANT CURRENT SOURCE MEANS INCLUDING A FIRST SEMICONDUCTOR CURRENT AMPLIFYING DEVICE HAVING FIRST AND SECOND CURRENT CARRYING ELECTRODES AND A CONTROL ELECTRODE; CONSTANT CURRENT SINK MEANS INCLUDING A SECOND SEMICONDUCTOR CURRENT AMPLIFYING DEVICE HAVING FIRST AND SECOND CURRENT CARRYING ELECTRODES AND A CONTROL ELECTRODE; MEANS CONNECTING SAID FIRST CURRENT CARRYING ELECTRODE OF SAID FIRST SEMICONDUCTOR DEVICE TO SAID FIRST CURRENT CARRYING ELECTRODE OF SAID SECOND SEMICONDUCTOR DEVICE; MEANS CONNECTING SAID SECOND CURRENT CARRYING ELECTRODE OF SAID FIRST SEMICONDUCTOR DEVICE TO A FIRST POLARITY OF SAID SOURCE OF ENERGY; MEANS CONNECTING SAID SECOND CURRENT CARRYING ELECTRODE OF SAID SECOND SEMICONDUCTOR DEVICE TO A SECOND POLARITY OF SAID SOURCE OF ENERGY; ADJUSTABLE MEANS CONNECTED INTERMEDIATE SAID CONTROL ELECTRODES OF SAID FIRST AND SECOND SEMICONDUCTOR DEVICES, FOR REGULATING THE AMOUNT OF CURRENT ALLOWED TO
Claim 2
Dependent Claim
140 words
A LINEAR RAMP GENERATOR COMPRISING: A SOURCE OF ENERGY; CONSTANT CURRENT SOURCE MEANS INCLUDING A FIRST SEMICONDUCTOR CURRENT AMPLIFYING DEVICE HAVING FIRST AND SECOND CURRENT CARRYING ELECTRODES AND A CONTROL ELECTRODE; CONSTANT CURRENT SINK MEANS INCLUDING A SECOND SEMICONDUCTOR CURRENT AMPLIFYING DEVICE HAVING FIRST AND SECOND CURRENT CARRYING ELECTRODES AND A CONTROL ELECTRODE; MEANS CONNECTING SAID FIRST CURRENT CARRYING ELECTRODE OF SAID FIRST SEMICONDUCTOR DEVICE TO SAID FIRST CURRENT CARRYING ELECTRODE OF SAID SECOND SEMICONDUCTOR DEVICE; MEANS CONNECTING SAID SECOND CURRENT CARRYING ELECTRODE OF SAID FIRST SEMICONDUCTOR DEVICE TO A FIRST POLARITY OF SAID SOURCE OF ENERGY; MEANS CONNECTING SAID SECOND CURRENT CARRYING ELECTRODE OF SAID SECOND SEMICONDUCTOR DEVICE TO A SECOND POLARITY OF SAID SOURCE OF ENERGY; ADJUSTABLE MEANS CONNECTED INTERMEDIATE SAID CONTROL ELECTRODES OF SAID FIRST AND SECOND SEMICONDUCTOR DEVICES, FOR REGULATING THE AMOUNT OF CURRENT ALLOWED TO
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) | 1969-07-25 | 1970-01-24 | 1970-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-25 | 1974-01-24 | 1974-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-25 | 1978-01-24 | 1978-07-26 | $7700.00 | Window Closed / Lapsed |