Patent US3115451A successfully refreshed from Google Patents.
US3115451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Logic circuit
Assignee: Individual
•
Filing: 1962-07-13
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Granted: 1963-12-24
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Expires: 1982-07-13
Abstract
No abstract record available.
Inventors
- 👤 Grant H Strong
- 👤 Melvin L Faught
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:00
CPC Classifications
G; G21; G21C; G21C7/00; G21C7/36; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
224 words
A DEVICE TO INDICATE WHEN A PREDETERMINED CONDITION HAS BEEN REACHED BY THE OCCURRENCE OF PHYSICAL EVENTS COMPRISING A D.-C. BRIDGE CIRCUIT; A D.-C. POWER SOURCE CONNECTED TO THE INPUT OF THE BRIDGE CIRCUIT; UNIDIRECTIONAL CURRENT SENSING MEANS CONNECTED TO THE OUTPUT OF THE BRIDGE CIRCUIT FOR SENSING THE FLOW OF CURRENT IN ONE DIRECTION; A PLURALITY OF IMPEDANCES CONNECTED IN AT LEAST ONE ARM OF THE BRIDGE CIRCUIT, EACH OF SAID IMPEDANCES BEING ASSOCIATED WITH A PARTICULAR PHYSICAL EVENT, SAID IMPEDANCES HAVING OHMIC VALUES CORRESPONDING TO THE COMPARAATIVE IMPORTANCE OF THE ASSOCIATED PARTICULAR EVENT; A PLURALITY OF SWITCHING MEANS CONNECTED TO SAID IMPEDANCES FOR SWITCHING EACH OF SAID IMPEDANCES INTO OR OUT OF SAID BRIDGE CIRCUIT; MEANS RESPONSIVE TO THE OCCURRENCE OF THE ASSOCIATED PARTICULAR PHYSICAL EVENT FOR ACTUATING EACH OF SAID SWITCHING MEANS; THE BRIDGE CIRCUIT BEING INITIALLY UNBALANCED IN A DIRECTION SUCH THAT CURRENT WILL FLOW THROUGH THE UNIDIRECTIOAL CURRENT SENSING MEANS IN A DIRECTION OPPOSITE TO SAID SENSING DIRECTION, SAID PLURALITY OF SWITCHING MEANS AND IMPEDANCES BEING ADAPTED TO UNBALANCE THE BRIDGE CIRCUIT IN A DIRECTION SUCH THAT CURRENT WILL FLOW THROUGH THE UNIDIRECTIONAL CURRENT SENSING MEANS IN SAID SENSING DIRECTION AFTER A PREDETERMINED CONDITION IS REACHED BY THE OCCURENCE OF SAID PHYSICAL EVENTS; AND INDICATING MEANS RESPONSIVE TO SAID SENSING DIRECTIONAL CURRENT FLOW THROUGH THE UNIDIRECTIONAL CURRENT SENSING MEANS.
Claim 2
Independent Claim
224 words
A DEVICE TO INDICATE WHEN A PREDETERMINED CONDITION HAS BEEN REACHED BY THE OCCURRENCE OF PHYSICAL EVENTS COMPRISING A D.-C. BRIDGE CIRCUIT; A D.-C. POWER SOURCE CONNECTED TO THE INPUT OF THE BRIDGE CIRCUIT; UNIDIRECTIONAL CURRENT SENSING MEANS CONNECTED TO THE OUTPUT OF THE BRIDGE CIRCUIT FOR SENSING THE FLOW OF CURRENT IN ONE DIRECTION; A PLURALITY OF IMPEDANCES CONNECTED IN AT LEAST ONE ARM OF THE BRIDGE CIRCUIT, EACH OF SAID IMPEDANCES BEING ASSOCIATED WITH A PARTICULAR PHYSICAL EVENT, SAID IMPEDANCES HAVING OHMIC VALUES CORRESPONDING TO THE COMPARAATIVE IMPORTANCE OF THE ASSOCIATED PARTICULAR EVENT; A PLURALITY OF SWITCHING MEANS CONNECTED TO SAID IMPEDANCES FOR SWITCHING EACH OF SAID IMPEDANCES INTO OR OUT OF SAID BRIDGE CIRCUIT; MEANS RESPONSIVE TO THE OCCURRENCE OF THE ASSOCIATED PARTICULAR PHYSICAL EVENT FOR ACTUATING EACH OF SAID SWITCHING MEANS; THE BRIDGE CIRCUIT BEING INITIALLY UNBALANCED IN A DIRECTION SUCH THAT CURRENT WILL FLOW THROUGH THE UNIDIRECTIOAL CURRENT SENSING MEANS IN A DIRECTION OPPOSITE TO SAID SENSING DIRECTION, SAID PLURALITY OF SWITCHING MEANS AND IMPEDANCES BEING ADAPTED TO UNBALANCE THE BRIDGE CIRCUIT IN A DIRECTION SUCH THAT CURRENT WILL FLOW THROUGH THE UNIDIRECTIONAL CURRENT SENSING MEANS IN SAID SENSING DIRECTION AFTER A PREDETERMINED CONDITION IS REACHED BY THE OCCURENCE OF SAID PHYSICAL EVENTS; AND INDICATING MEANS RESPONSIVE TO SAID SENSING DIRECTIONAL CURRENT FLOW THROUGH THE UNIDIRECTIONAL CURRENT SENSING MEANS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-23 | 1967-06-24 | 1967-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-23 | 1971-06-24 | 1971-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-23 | 1975-06-24 | 1975-12-24 | $7700.00 | Window Closed / Lapsed |