US3268822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High repetition rate pulse generator
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1964-09-04
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Granted: 1966-08-23
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Expires: 1984-09-04
Abstract
No abstract record available.
Inventors
- 👤 John J Hickey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:33
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/53; H03K3/55
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
A PULSE GENERATING CIRCUIT, COMPRISING: AN ENERGY STORAGE DEVICE ADAPTED TO BE CHARGED TO A PREDETERMINED VOLTAGE; A FIRST PATH IN CIRCUIT WITH SAID ENERGY STORAGE DEVICE AND INCLUDING MEANS FOR CHARGING SAID ENERGY STORAGE DEVIDE TO SAID PREDETERMINED VOLTAGE, SAID MEANS INCLUDING CONTINUOUSLY VARIABLE CONDUCTANCE MEANS FOR CONTROLLING CURRENT OF SAID ENERGY STORAGE DEVICE; A SECOND PATH IN CIRCUIT WITH SAID ENERGY STORAGER DEVICE, SAID PATH INCLUDING INITIALLY OPEN SWITCH MEANS, LOAD IMPEDANCE MEANS AND A CURRENT SENSING MEANS IN SERIES CIRCUIT WITH EACH OTHER; SAID SWITCH MEANS BEING ENERGIZABLE BY AN INPUT PULSE TO DISCHARGE CURRENT FROM SAID ENERGY STORAGE DEVICE THROUGH SAID SERIES CIRCUIT; AND A FEEDBACK PATH COUPLING SAID CURRENT SENSING MEANS TO SAID CONTINUOUSLY VARIABLE CONDUCTANCE MEANS, AND PROVIDED WITH MEANS (A) FOR INCREASING THE CONDUCTANCE OF SAID CONTINUOUSLY VARIABLE CONDUCTANCE MEANS TO A HIGH VALUE WHEN NO CURRENT IS SENSED BY SAID CURRENT SENSING MEANS, THEREBY TO RAPIDLY CHARGE SAID ENERGY STORAGE DEVICE, (B) FOR DECREASING THE CONDUCTANCE OF SAID CONTINUOUSLY VARIABLE CONDUCTANCE MEANS TO AN INTERMEDIATE VALUE WHEN LOW CURRENT IS
Claim 2
Dependent Claim
178 words
A PULSE GENERATING CIRCUIT, COMPRISING: AN ENERGY STORAGE DEVICE ADAPTED TO BE CHARGED TO A PREDETERMINED VOLTAGE; A FIRST PATH IN CIRCUIT WITH SAID ENERGY STORAGE DEVICE AND INCLUDING MEANS FOR CHARGING SAID ENERGY STORAGE DEVIDE TO SAID PREDETERMINED VOLTAGE, SAID MEANS INCLUDING CONTINUOUSLY VARIABLE CONDUCTANCE MEANS FOR CONTROLLING CURRENT OF SAID ENERGY STORAGE DEVICE; A SECOND PATH IN CIRCUIT WITH SAID ENERGY STORAGER DEVICE, SAID PATH INCLUDING INITIALLY OPEN SWITCH MEANS, LOAD IMPEDANCE MEANS AND A CURRENT SENSING MEANS IN SERIES CIRCUIT WITH EACH OTHER; SAID SWITCH MEANS BEING ENERGIZABLE BY AN INPUT PULSE TO DISCHARGE CURRENT FROM SAID ENERGY STORAGE DEVICE THROUGH SAID SERIES CIRCUIT; AND A FEEDBACK PATH COUPLING SAID CURRENT SENSING MEANS TO SAID CONTINUOUSLY VARIABLE CONDUCTANCE MEANS, AND PROVIDED WITH MEANS (A) FOR INCREASING THE CONDUCTANCE OF SAID CONTINUOUSLY VARIABLE CONDUCTANCE MEANS TO A HIGH VALUE WHEN NO CURRENT IS SENSED BY SAID CURRENT SENSING MEANS, THEREBY TO RAPIDLY CHARGE SAID ENERGY STORAGE DEVICE, (B) FOR DECREASING THE CONDUCTANCE OF SAID CONTINUOUSLY VARIABLE CONDUCTANCE MEANS TO AN INTERMEDIATE VALUE WHEN LOW CURRENT IS
References Cited (Backward Citations)
US3167661A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |