US3159773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bi-stable relay circuit
Assignee: Individual
•
Filing: 1960-02-24
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Granted: 1964-12-01
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Expires: 1980-02-24
Abstract
No abstract record available.
Inventors
- 👤 Elliott George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:44
CPC Classifications
H; H01; H01H; H01H47/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
218 words
A BI-STABLE RELAY CIRCUIT COMPRISING A RELAY HAVING A SINGLE COIL, A SINGLE MOVABLE CONTACT ARM AND AT LEST TWO FRONT AND AT LEAST TWO BACK CONTACTS, FIRST CIRCUIT MEANS INCLUDING A SOURCE OF ELECTRICAL ENERGY, THE CONTACT ARM, ONE FRONT CONTACT, A RESISTOR, AND THE COIL TO CAUSE CURRENT TO FLOW THROUGH THE COIL IN A DIRECTION TO HOLD THE CONTACT ARM IN CONTACT WITH SAID FRONT CONTACTS WHEN THE CONTACT ARM IS IN CONTACT WITH SAID FRONT CONTACTS, SECOND CIRCUIT MEANS INLUDING THE SOURCE OF ENERGY, THE CONTACT ARM, ONE BACK CONTACT, A RESISTOR, AND THE COIL, WHEN THE CONTACT ARM IS IN CONTACT WITH SAID BACK CONTACTS, TO CAUSE CURRENT TO FLOW IN THE OPPOSITE DIRECTION THROUGH SAID COIL TO HOLD THE CONTACT ARM IN CONTACT WITH SAID BACK CONTACTS, POLARIZING MEANS TENDING TO HOLD SAID CONTACT ARM IN ENGAGEMENT WITH THE CONTACT WITH WHICH IT IS ENGAGED, AND A THIRD CIRCUIT MEANS CONNECTABLE TO SAID FIRST AND SECOND CIRCUIT MEANS TO CAUSE A SURGE OF CURRENT TO FLOW IN A DIRECTION OPPOSITE TO THE CURRENT THEN FLOWING THROUGH SAID COIL UPON THE MOMENTARY CONNECTION TO SAID THIRD CIRCUIT MEANS TO ONE POLE OF A DIRECT CURRENT SOURCE TO DRIVE THE CONTACT FROM THE CONTACTS, WITH WHICH IT IS THEN ENGAGED, TO THE OPPOSED CONTACTS.
Claim 2
Dependent Claim
218 words
A BI-STABLE RELAY CIRCUIT COMPRISING A RELAY HAVING A SINGLE COIL, A SINGLE MOVABLE CONTACT ARM AND AT LEST TWO FRONT AND AT LEAST TWO BACK CONTACTS, FIRST CIRCUIT MEANS INCLUDING A SOURCE OF ELECTRICAL ENERGY, THE CONTACT ARM, ONE FRONT CONTACT, A RESISTOR, AND THE COIL TO CAUSE CURRENT TO FLOW THROUGH THE COIL IN A DIRECTION TO HOLD THE CONTACT ARM IN CONTACT WITH SAID FRONT CONTACTS WHEN THE CONTACT ARM IS IN CONTACT WITH SAID FRONT CONTACTS, SECOND CIRCUIT MEANS INLUDING THE SOURCE OF ENERGY, THE CONTACT ARM, ONE BACK CONTACT, A RESISTOR, AND THE COIL, WHEN THE CONTACT ARM IS IN CONTACT WITH SAID BACK CONTACTS, TO CAUSE CURRENT TO FLOW IN THE OPPOSITE DIRECTION THROUGH SAID COIL TO HOLD THE CONTACT ARM IN CONTACT WITH SAID BACK CONTACTS, POLARIZING MEANS TENDING TO HOLD SAID CONTACT ARM IN ENGAGEMENT WITH THE CONTACT WITH WHICH IT IS ENGAGED, AND A THIRD CIRCUIT MEANS CONNECTABLE TO SAID FIRST AND SECOND CIRCUIT MEANS TO CAUSE A SURGE OF CURRENT TO FLOW IN A DIRECTION OPPOSITE TO THE CURRENT THEN FLOWING THROUGH SAID COIL UPON THE MOMENTARY CONNECTION TO SAID THIRD CIRCUIT MEANS TO ONE POLE OF A DIRECT CURRENT SOURCE TO DRIVE THE CONTACT FROM THE CONTACTS, WITH WHICH IT IS THEN ENGAGED, TO THE OPPOSED CONTACTS.
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) | 1967-12-01 | 1968-06-01 | 1968-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-01 | 1972-06-01 | 1972-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-01 | 1976-06-01 | 1976-12-01 | $7700.00 | Window Closed / Lapsed |