US3218482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cryogenic neuristor employing inductance means to control superconductivity
Assignee: SRI International Inc
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Filing: 1963-09-30
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Granted: 1965-11-16
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Expires: 1983-09-30
Abstract
No abstract record available.
Inventors
- 👤 Milton W Green
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:53
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/38; G06F7/381; G06N; G06N3/00; G06N3/02; G06N3/06; G06N3/063; G06N3/065; G11; G11C; G11C19/00; G11C19/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
195 words
A CRYOGENIC NEURISTOR COMPRISING A LENGTH OF MATERIAL HAVING THER PROPERTY OF SUPERCONDITION WHEREBY WHEN IN ITS NORMAL STATE ABOVE A CRITICAL TEMPERATURE VALUE THE RESISTANCE OF SAID MATERIAL IS HIGH RELATIVE TO ITS RESISTANCE WHEN IN ITS SUPERCONDUCTING STATE BELOW THE CRITICAL VALUE TEMPERATURE, SAID MATERIAL BEING CAPABLE OF BEING DRIVEN FROM ITS SUPERCONDUCTING TO ITS NORMAL STATE BY THE APPLICATION THERETO OF A CURRENT OR MAGNETIC FIELD WHICH EXCEEDS A CRITICAL VALUE, MEANS FOR PLACING SAID MATERIAL IN ITS SUPERCONDUCTING STATE, MEANS FOR APPLYING A CONSTANT CURRENT AT AN AMPLITUDE BELOW THE CRITICAL VALUE TO SAID LENGTH OF MATERIAL, MEANS FOR CAUSING A PORTION OF SAID MATERIAL TO BECOME NORMAL, AND MEANS CONNECTED IN PARALLEL WITH SAID LENGTH OF SUPERCONDUCTIVE MATERIAL HAVING A RESISTANCE SUCH THAT WHEN SAID SUPERCONDUCTIVE MATERIAL IS NORMAL SAID MEANS CONNECTED IN PARALLEL SHUNTS SUFFICIENT CURRENT FROM SAID SUPERCONDUCTIVE MATERIAL TO ENABLE SAID SUPERCONDUCTIVE MATERIAL TO RETURN TO ITS SUPERCONDUCTING STATE AND HAVING AN INDUCTANCE VALUE RELATIVE TO THE INDUCTANCE OF SAID SUPERCONDUCTIVE MATERIAL TO DELAY THE TRANSFER OF CURRENT BETWEEN IT AND SAID SUPERCONDUCTIVE MATERIAL AT THE TIME SAID SUPERCONDUCTIVE MATERIAL SWITCHES BETWEEN ITS NORMAL AND SUPERCONDUCTIVE STATES.
Claim 2
Dependent Claim
195 words
A CRYOGENIC NEURISTOR COMPRISING A LENGTH OF MATERIAL HAVING THER PROPERTY OF SUPERCONDITION WHEREBY WHEN IN ITS NORMAL STATE ABOVE A CRITICAL TEMPERATURE VALUE THE RESISTANCE OF SAID MATERIAL IS HIGH RELATIVE TO ITS RESISTANCE WHEN IN ITS SUPERCONDUCTING STATE BELOW THE CRITICAL VALUE TEMPERATURE, SAID MATERIAL BEING CAPABLE OF BEING DRIVEN FROM ITS SUPERCONDUCTING TO ITS NORMAL STATE BY THE APPLICATION THERETO OF A CURRENT OR MAGNETIC FIELD WHICH EXCEEDS A CRITICAL VALUE, MEANS FOR PLACING SAID MATERIAL IN ITS SUPERCONDUCTING STATE, MEANS FOR APPLYING A CONSTANT CURRENT AT AN AMPLITUDE BELOW THE CRITICAL VALUE TO SAID LENGTH OF MATERIAL, MEANS FOR CAUSING A PORTION OF SAID MATERIAL TO BECOME NORMAL, AND MEANS CONNECTED IN PARALLEL WITH SAID LENGTH OF SUPERCONDUCTIVE MATERIAL HAVING A RESISTANCE SUCH THAT WHEN SAID SUPERCONDUCTIVE MATERIAL IS NORMAL SAID MEANS CONNECTED IN PARALLEL SHUNTS SUFFICIENT CURRENT FROM SAID SUPERCONDUCTIVE MATERIAL TO ENABLE SAID SUPERCONDUCTIVE MATERIAL TO RETURN TO ITS SUPERCONDUCTING STATE AND HAVING AN INDUCTANCE VALUE RELATIVE TO THE INDUCTANCE OF SAID SUPERCONDUCTIVE MATERIAL TO DELAY THE TRANSFER OF CURRENT BETWEEN IT AND SAID SUPERCONDUCTIVE MATERIAL AT THE TIME SAID SUPERCONDUCTIVE MATERIAL SWITCHES BETWEEN ITS NORMAL AND SUPERCONDUCTIVE STATES.
References Cited (Backward Citations)
US2913881A
Cited
US3021434A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |