US3149267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reset circuit for electrical trip-out
Assignee: TDK Micronas GmbH
•
Filing: 1960-10-17
•
Granted: 1964-09-15
•
Expires: 1980-10-17
Abstract
No abstract record available.
Inventors
- 👤 Harold A Mcintosh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:28
CPC Classifications
H; H02; H02H; H02H5/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
IN A CONTROL SYSTEM FOR A LOAD: A THERMOSTAT STRUCTURE INCLUDING A MANUALLY OPERABLE SWITCH AND TEMPERATURE RESPONSIVE SWITCH, ONE POLE OF THE MANUALLY OPERABLE SWITCH BEING INTERNALLY CONNECTED TO ONE POLE OF THE TEMPERATURE RESPONSIVE SWITCH FOR COMMON CONNECTION TO ONE POWER LINE; A FIRST RELAY AND A SECOND RELAY; BRANCH ENERGIZATION CIRCUITS FOR THE RELAYS, EACH CONNECTED TO THE OTHER POLE OF SAID MANUALLY OPERABLE SWITCH; MEANS FOR INITIALLY COMPLETING THE ENERGIZATION CIRCUIT OF THE FIRST RELAY TO ANOTHER POWER LINE AND DEPENDENT UPON THE SECOND RELAY BEING DENERGIZED; A HOLDING CIRCUIT FOR THE FIRST RELAY, AND INCLUDING A SAFETY SWITCH RESPONSIVE TO THE EXISTENCE OF A CONDITION WITH WHICH OPERATION OF THE LOAD IS UNDESIRABLE; MEANS DEPENDENT UPON THE MANUALLY OPERABLE SWITCH MAINTAINING THE SECOND RELAY ENERGIZED; AND A LOAD OPERATING CIRCUIT DEPENDENT UPON THE FIRST RELAY BEING ENERGIZED.
Claim 2
Dependent Claim
142 words
IN A CONTROL SYSTEM FOR A LOAD: A THERMOSTAT STRUCTURE INCLUDING A MANUALLY OPERABLE SWITCH AND TEMPERATURE RESPONSIVE SWITCH, ONE POLE OF THE MANUALLY OPERABLE SWITCH BEING INTERNALLY CONNECTED TO ONE POLE OF THE TEMPERATURE RESPONSIVE SWITCH FOR COMMON CONNECTION TO ONE POWER LINE; A FIRST RELAY AND A SECOND RELAY; BRANCH ENERGIZATION CIRCUITS FOR THE RELAYS, EACH CONNECTED TO THE OTHER POLE OF SAID MANUALLY OPERABLE SWITCH; MEANS FOR INITIALLY COMPLETING THE ENERGIZATION CIRCUIT OF THE FIRST RELAY TO ANOTHER POWER LINE AND DEPENDENT UPON THE SECOND RELAY BEING DENERGIZED; A HOLDING CIRCUIT FOR THE FIRST RELAY, AND INCLUDING A SAFETY SWITCH RESPONSIVE TO THE EXISTENCE OF A CONDITION WITH WHICH OPERATION OF THE LOAD IS UNDESIRABLE; MEANS DEPENDENT UPON THE MANUALLY OPERABLE SWITCH MAINTAINING THE SECOND RELAY ENERGIZED; AND A LOAD OPERATING CIRCUIT DEPENDENT UPON THE FIRST RELAY BEING ENERGIZED.
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) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |