US3264952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nuclear safety rod actuator
Assignee: Babcock and Wilcox Co
•
Filing: 1964-05-01
•
Granted: 1966-08-09
•
Expires: 1984-05-01
Abstract
No abstract record available.
Inventors
- 👤 Gordon R Winders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:50
CPC Classifications
G; G21; G21C; G21C7/00; G21C7/06; G21C7/08; G21C7/20; G21C7/12; G21C7/16; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
199 words
A NUCLEAR SAFETY ROD ACTUATOR COMPRISING A CYLINDER, A PISTON ARRANGED IN SAID CYLINDER, ONE END OF SAID PISTON ARRANGED TO BE CONNECTED TO A SAFETY ROD, SAID CYLINDER HAVING AN INTERNAL DIAMETER SMALLER AT EACH END THAN THE DIAMETER OF SAID PISTON AND AN INTERNAL DIAMETER BETWEEN SAID ENDS GREATER THAN THE DIAMETER OF SAID PISTON TO FORM A RESTRICTED FLOW SPACE BETWEEN SAID PISTON AND SAID CYLINDER, MEANS FOR INTRODUCING A FLUID AT A PREDETERMINED FLOW RATE INTO ONE END OF SAID CYLINDER FOR PASSAGE THERETHROUGH AND THROUGH SAID RESTRICTED FLOW SPACE, THE SIZE OF SAID RESTRICTED FLOW SPACE BEING RELATED TO SAID PREDETERMINED FLOW RATE TO PRODUCE A PRESSURE DROP ACROSS SAID PISTON SUFFICIENT TO MOVE SAID PISTON TO THE OPPOSITE END OF SAID CYLINDER, MEANS COOPERATING WITH SAID PISTON AND SAID CYLINDER TO MINIMIZE SAID FLUID FLOW THROUGH SAID RESTRICTED FLOW SPACE WHEN SAID PISTON REACHES THE OPPOSITE END OF SAID CYLINDER, SAID PISTON BEING MAINTAINED AT THE OPPOSITE END OF SAID CYLINDER BY A PREDETERMINED REDUCED RATE OF SAID FLUID FLOW, AND MEANS FOR RETURNING SAID PISTON TO THE FIRST END OF SAID CYLINDER WHEN SAID FLOW RATE FALLS BELOW SAID PREDETERMINED REDUCED RATE.
Claim 2
Dependent Claim
199 words
A NUCLEAR SAFETY ROD ACTUATOR COMPRISING A CYLINDER, A PISTON ARRANGED IN SAID CYLINDER, ONE END OF SAID PISTON ARRANGED TO BE CONNECTED TO A SAFETY ROD, SAID CYLINDER HAVING AN INTERNAL DIAMETER SMALLER AT EACH END THAN THE DIAMETER OF SAID PISTON AND AN INTERNAL DIAMETER BETWEEN SAID ENDS GREATER THAN THE DIAMETER OF SAID PISTON TO FORM A RESTRICTED FLOW SPACE BETWEEN SAID PISTON AND SAID CYLINDER, MEANS FOR INTRODUCING A FLUID AT A PREDETERMINED FLOW RATE INTO ONE END OF SAID CYLINDER FOR PASSAGE THERETHROUGH AND THROUGH SAID RESTRICTED FLOW SPACE, THE SIZE OF SAID RESTRICTED FLOW SPACE BEING RELATED TO SAID PREDETERMINED FLOW RATE TO PRODUCE A PRESSURE DROP ACROSS SAID PISTON SUFFICIENT TO MOVE SAID PISTON TO THE OPPOSITE END OF SAID CYLINDER, MEANS COOPERATING WITH SAID PISTON AND SAID CYLINDER TO MINIMIZE SAID FLUID FLOW THROUGH SAID RESTRICTED FLOW SPACE WHEN SAID PISTON REACHES THE OPPOSITE END OF SAID CYLINDER, SAID PISTON BEING MAINTAINED AT THE OPPOSITE END OF SAID CYLINDER BY A PREDETERMINED REDUCED RATE OF SAID FLUID FLOW, AND MEANS FOR RETURNING SAID PISTON TO THE FIRST END OF SAID CYLINDER WHEN SAID FLOW RATE FALLS BELOW SAID PREDETERMINED REDUCED RATE.
References Cited (Backward Citations)
US2855899A
Cited
US2975119A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |