US3419794A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Superconductive magnet having an automatic coolant low level warning and shut down means
Assignee: Varian Medical Systems Inc
•
Filing: 1966-05-05
•
Granted: 1968-12-31
•
Expires: 1986-05-05
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry E Weaver
- 👤 Floyd E Kingston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:45
CPC Classifications
H; H02; H02H; H02H7/00; H02H7/001; G; G01; G01F; G01F23/00; G01F23/22; G01F23/26; Y; Y02; Y02E; Y02E40/00; Y02E40/60; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/879
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A SUPERCONDUCTIVE MAGNET SYSTEM INCLUDING, MEANS FORMING A SUPERCONDUCTIVE SOLENOID MAGNET, MEANS FORMING A CRYOSTAT ENVELOPING SAID SOLENOID MEANS AND HAVING A LIQUID COOLANT CHAMBER FOR CONTAINING LIQUID COOLAANT IN WHICH SAID SOLENOID MEANS IS IMMERSED, LIQUID LEVEL SENSING MEANS DISPOSED IN SAID LIQUID COOLANT CHAMBER OF SAID CRYOSTAT FOR PRODUCING AN OUTPUT SIGNAL WHEN THE LIQUID COOLANT IN SAID CHAMBER HAS RECEDED TO A CERTAIN PREDETERMINED LEVEL, MEANS RESPONSIVE TO THE OUTPUT SIGNAL FOR SHUTTING DOWN THE SOLENOID AND DIVERTING THE
Claim 2
Dependent Claim
82 words
A SUPERCONDUCTIVE MAGNET SYSTEM INCLUDING, MEANS FORMING A SUPERCONDUCTIVE SOLENOID MAGNET, MEANS FORMING A CRYOSTAT ENVELOPING SAID SOLENOID MEANS AND HAVING A LIQUID COOLANT CHAMBER FOR CONTAINING LIQUID COOLAANT IN WHICH SAID SOLENOID MEANS IS IMMERSED, LIQUID LEVEL SENSING MEANS DISPOSED IN SAID LIQUID COOLANT CHAMBER OF SAID CRYOSTAT FOR PRODUCING AN OUTPUT SIGNAL WHEN THE LIQUID COOLANT IN SAID CHAMBER HAS RECEDED TO A CERTAIN PREDETERMINED LEVEL, MEANS RESPONSIVE TO THE OUTPUT SIGNAL FOR SHUTTING DOWN THE SOLENOID AND DIVERTING THE
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) | 1971-12-31 | 1972-07-01 | 1972-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-31 | 1976-07-01 | 1976-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-31 | 1980-07-01 | 1980-12-31 | $7700.00 | Window Closed / Lapsed |