Patent US3248610A successfully refreshed from Google Patents.
US3248610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyphase unbalance detection apparatus
Assignee: Individual
•
Filing: 1962-07-02
•
Granted: 1966-04-26
•
Expires: 1982-07-02
Abstract
No abstract record available.
Inventors
- 👤 Jack C Faglie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:15
CPC Classifications
H; H02; H02H; H02H3/00; H02H3/26; H02H3/32; H02H3/34; H02H3/353
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
APPARATUS FOR DETECTING UNBALANCE BETWEEN PHASES IN A POLYPHASE SYSTEM COMPRISING: MEANS FOR DERIVING A UNIDIRECTIONAL SIGNAL FROM ALL PHASES OF A POLYPHASE SOURCE OF ELECTRICAL ENERGY, SAID SIGNAL INCLUDING ALTERNATING AND DIRECT COMPONENTS; FIRST IMPEDANCE MEANS HAVING A CAPACITANCE CONNECTED IN PARALLEL THEREWITH, SAID CAPACITANCE BEING OF LOW IMPEDANCE TO THE ALTERNATING COMPONENT OF SAID SIGNAL; SECOND IMPEDANCE MEANS OF LOWER IMPEDANCE TO SAID DIRECT CURRENT COMPONENT AND OF HIGHER IMPEDANCE TO SAID ALTERNATING COMPONENT; MEANS CONNECTING SAID FIRST AND SECOND IMPEDANCE MEANS IN SERIES TO SAID FIRST NAMED MEANS; POTENTIAL RESPONSIVE IMPEDANCE MEANS, RESPONSIVE TO SAID ALTERNATING COMPONENT TO VARY THE IMPEDANCE THEREOF TO SAID DIRECT COMPONENT, CONNECTED IN PARALLEL WITH SAID SECOND IMPEDANCE MEANS; AND LOAD MEANS CONNECTED TO SAID SECOND IMPEDANCE AND RESPONSIVE TO THE FLOW OF ENERGY THERETHROUGH FOR CONTROLLING A POWER UTILIZATION DEVICE.
Claim 2
Dependent Claim
139 words
APPARATUS FOR DETECTING UNBALANCE BETWEEN PHASES IN A POLYPHASE SYSTEM COMPRISING: MEANS FOR DERIVING A UNIDIRECTIONAL SIGNAL FROM ALL PHASES OF A POLYPHASE SOURCE OF ELECTRICAL ENERGY, SAID SIGNAL INCLUDING ALTERNATING AND DIRECT COMPONENTS; FIRST IMPEDANCE MEANS HAVING A CAPACITANCE CONNECTED IN PARALLEL THEREWITH, SAID CAPACITANCE BEING OF LOW IMPEDANCE TO THE ALTERNATING COMPONENT OF SAID SIGNAL; SECOND IMPEDANCE MEANS OF LOWER IMPEDANCE TO SAID DIRECT CURRENT COMPONENT AND OF HIGHER IMPEDANCE TO SAID ALTERNATING COMPONENT; MEANS CONNECTING SAID FIRST AND SECOND IMPEDANCE MEANS IN SERIES TO SAID FIRST NAMED MEANS; POTENTIAL RESPONSIVE IMPEDANCE MEANS, RESPONSIVE TO SAID ALTERNATING COMPONENT TO VARY THE IMPEDANCE THEREOF TO SAID DIRECT COMPONENT, CONNECTED IN PARALLEL WITH SAID SECOND IMPEDANCE MEANS; AND LOAD MEANS CONNECTED TO SAID SECOND IMPEDANCE AND RESPONSIVE TO THE FLOW OF ENERGY THERETHROUGH FOR CONTROLLING A POWER UTILIZATION DEVICE.
References Cited (Backward Citations)
US2994039A
Cited
US3018356A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |