US3337756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for short-term supply of current following interruption thereof
Assignee: Vibrantz Corp
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Filing: 1964-08-11
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Granted: 1967-08-22
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Expires: 1984-08-11
Abstract
No abstract record available.
Inventors
- 👤 Carl J Mendenhall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:31
CPC Classifications
H; H01; H01H; H01H47/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
196 words
A SYSTEM FOR SUPPLYING CURRENT TO AN END-USE RESISTANCE FOR A PREDETERMINED PERIOD OF TIME FOLLOWING CURRENT INTERRUPTION COMPRISING, IN COMBINATION, AN ENDUSE RESISTANCE CONNECTED ACROSS A SOURCE OF CURRENT, A FIRST RELAY HAVING AN ENERGIZING COIL ACROSS SAID SOURCE AND A NORMALLY OPEN CONTACT IN SERIES WITH SAID END-USE RESISTANCE, A SECOND RELAY HAVING AN ENERGIZING COIL ACROSS SAID SOURCE AND A NORMALLY OPEN CONTACT AND A NORMALLY CLOSED CONTACT, SAID NORMALLY CLOSED CONTACT BEING CONNECTED IN SERIES WITH THE ENERGIZING COIL OF SAID FIRST RELAY, A TIME-DELAY RELAY HAVING AN ENERGIZING COIL CONNECTED ACROSS THE ENERGIZING COIL OF SAID FIRST RELAY, A NORMALLY OPEN CONTACT OF SAID TIME-DELAY RELAY BEING CONNECTED IN SERIES WITH THE ENERGIZING COIL OF SAID SECOND RELAY, SAID NORMALLY OPEN CONTACT OF SAID SECOND RELAY BEING CONNECTED ACROSS THE NORMALLY OPEN CONTACT OF SAID TIME-DELAY RELAY, SAID COILS OF SAID FIRST AND SECOND RELAYS IN PARALLEL WITH RESPECT OF EACH OTHER, THE ENERGIZING COIL OF SAID FIRST RELAY BEING INSTANTANEOUSLY ENERGIZED UPON THE APPLICATION OF SAID CURRENT SOURCE THERETO EFFECTIVE TO CLOSE THE NORMALLY OPEN CONTACT OF SAID FIRST RELAY AND SUPPLY CURRENT FROM SAID SOURCE TO SAID END-USE RESISTANCE,
Claim 2
Independent Claim
196 words
A SYSTEM FOR SUPPLYING CURRENT TO AN END-USE RESISTANCE FOR A PREDETERMINED PERIOD OF TIME FOLLOWING CURRENT INTERRUPTION COMPRISING, IN COMBINATION, AN ENDUSE RESISTANCE CONNECTED ACROSS A SOURCE OF CURRENT, A FIRST RELAY HAVING AN ENERGIZING COIL ACROSS SAID SOURCE AND A NORMALLY OPEN CONTACT IN SERIES WITH SAID END-USE RESISTANCE, A SECOND RELAY HAVING AN ENERGIZING COIL ACROSS SAID SOURCE AND A NORMALLY OPEN CONTACT AND A NORMALLY CLOSED CONTACT, SAID NORMALLY CLOSED CONTACT BEING CONNECTED IN SERIES WITH THE ENERGIZING COIL OF SAID FIRST RELAY, A TIME-DELAY RELAY HAVING AN ENERGIZING COIL CONNECTED ACROSS THE ENERGIZING COIL OF SAID FIRST RELAY, A NORMALLY OPEN CONTACT OF SAID TIME-DELAY RELAY BEING CONNECTED IN SERIES WITH THE ENERGIZING COIL OF SAID SECOND RELAY, SAID NORMALLY OPEN CONTACT OF SAID SECOND RELAY BEING CONNECTED ACROSS THE NORMALLY OPEN CONTACT OF SAID TIME-DELAY RELAY, SAID COILS OF SAID FIRST AND SECOND RELAYS IN PARALLEL WITH RESPECT OF EACH OTHER, THE ENERGIZING COIL OF SAID FIRST RELAY BEING INSTANTANEOUSLY ENERGIZED UPON THE APPLICATION OF SAID CURRENT SOURCE THERETO EFFECTIVE TO CLOSE THE NORMALLY OPEN CONTACT OF SAID FIRST RELAY AND SUPPLY CURRENT FROM SAID SOURCE TO SAID END-USE RESISTANCE,
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) | 1970-08-21 | 1971-02-20 | 1971-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-21 | 1975-02-20 | 1975-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-21 | 1979-02-20 | 1979-08-22 | $7700.00 | Window Closed / Lapsed |