US3099756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Current pulsing circuit which is sensitive to current changes
Assignee: Individual
•
Filing: 1960-05-06
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Granted: 1963-07-30
•
Expires: 1980-05-06
Abstract
No abstract record available.
Inventors
- 👤 Penfold Vincent Hamilton
- 👤 Ireland Reginald Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:14
CPC Classifications
H; H01; H01H; H01H51/00; H01H51/34; B; B60; B60Q; B60Q1/00; B60Q1/26; B60Q1/34; B60Q1/38; B60Q1/385; B60Q11/00; B60Q11/005; B60Q11/007
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
A PULSING DEVICE COMPRISING A RELAY HAVING A STARTING WINDING OF LOW RESISTANCE AND A DELAY WINDING OF RELATIVELY HIGH RESISTANCE AND A PAIR OF NORMALLY CLOSED RELAY CONTACTS, A CONDENSER, AND TWO TERMINALS FOR CONNECTING THE DEVICE IN SERIES WITH THE LOAD TO BE PULSED, WHEREIN THE STARTING WINDING IS CONNECTED IN SERIES WITH THE RELAY CONTACTS TO FORM A STARTING CIRCUIT CONNECTED BETWEEN THE TWO TERMINALS, AND THE DELAY WINDING IS CONNECTED IN SERIES WITH THE CONDESOR TO FORM A DELAY CIRCUIT WHICH IS SHUNTED ACROSS AT LEAST THAT PART OF THE STARTING CIRCUIT WHICH INCLUDES THE RELAY CONTACTS, THE TWO WINDINGS BEING SO CONNECTED THAT A CURRENT DISCHARGE FROM SAID CONDENSER THROUGH THE DELAY WINDING, WHEN THE ARMATURE CONTACTS ARE CLOSED, CAUSES THE DELAY WINDING TO PRODUCE A FIELD IN OPPOSITION TO THE FIELD PRODUCED BY THE STARTING WINDING BY A CURRENT IN THE STARTING CIRCUIT WHICH FLOWS THROUGH THE RELAY CONTACTS IN THE SAME DIRECTION AS SAID DISCHARGE CURRENT.
Claim 2
Dependent Claim
163 words
A PULSING DEVICE COMPRISING A RELAY HAVING A STARTING WINDING OF LOW RESISTANCE AND A DELAY WINDING OF RELATIVELY HIGH RESISTANCE AND A PAIR OF NORMALLY CLOSED RELAY CONTACTS, A CONDENSER, AND TWO TERMINALS FOR CONNECTING THE DEVICE IN SERIES WITH THE LOAD TO BE PULSED, WHEREIN THE STARTING WINDING IS CONNECTED IN SERIES WITH THE RELAY CONTACTS TO FORM A STARTING CIRCUIT CONNECTED BETWEEN THE TWO TERMINALS, AND THE DELAY WINDING IS CONNECTED IN SERIES WITH THE CONDESOR TO FORM A DELAY CIRCUIT WHICH IS SHUNTED ACROSS AT LEAST THAT PART OF THE STARTING CIRCUIT WHICH INCLUDES THE RELAY CONTACTS, THE TWO WINDINGS BEING SO CONNECTED THAT A CURRENT DISCHARGE FROM SAID CONDENSER THROUGH THE DELAY WINDING, WHEN THE ARMATURE CONTACTS ARE CLOSED, CAUSES THE DELAY WINDING TO PRODUCE A FIELD IN OPPOSITION TO THE FIELD PRODUCED BY THE STARTING WINDING BY A CURRENT IN THE STARTING CIRCUIT WHICH FLOWS THROUGH THE RELAY CONTACTS IN THE SAME DIRECTION AS SAID DISCHARGE CURRENT.
References Cited (Backward Citations)
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Cited
US1811858A
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US2128800A
Cited
US2810841A
Cited
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Cited
US2878431A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-29 | 1967-01-28 | 1967-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-29 | 1971-01-28 | 1971-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-29 | 1975-01-28 | 1975-07-30 | $7700.00 | Window Closed / Lapsed |