US3279487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Breathing valve
Assignee: ROSWELL PARK MEMORIAL HOSPITAL
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Filing: 1963-12-30
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Granted: 1966-10-18
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Expires: 1983-12-30
Abstract
No abstract record available.
Inventors
- 👤 James O Elam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:44
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/20; A61M16/208; Y; Y10; Y10S; Y10S137/00; Y10S137/908; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2544; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7795; Y10T137/7837; Y10T137/7838; Y10T137/7841; Y10T137/7842; Y10T137/8158; Y10T137/8359
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
A VALVE FOR USE WITH BREATHING EQUIPMENT COMPRISING A VALVE BODY OF NONMAGNETIC MATERIAL AND HAVING A GENERALLY CYLINDRICAL VALVE CHAMBER THEREIN WITH INSPIRATORY AND EXPIRATORY PORTS COMMUNICATING WITH THE CHAMBER TOWARD OPPOSITE ENDS THEREOF AND WITH A PATIENT''S BREATHING PORT COMMUNICATING WITH THE CHAMBER INTERMEDIATE THE INSPIRATORY AND EXPIRATORY PORTS, A BALL VALVE IN THE CHAMBER AND COMPRISING MAGNETIC MATERIAL, A BALL SEAT AROUND THE INSPIRATORY PORT ENGAGEABLE BY THE BALL TO CLOSE THE INSPIRATORY PORT, A BALL SEAT AROUND THE EXPIRATORY PORT ENGAGEABLE BY THE BALL TO CLOSE THE EXPIRATORY PORT, A CHECK VALVE ASSOCIATED WITH THE EXPIRATORY PORT AND POSITIONED TO PREVENT FLOW THROUGH THE EXPIRATORY PORT TOWARD THE PATIENT''S BREATHING PORT, AND MAGNETIC MEANS DISPOSED AROUND THE VALVE BODY EXTERNALLY THEREOF FOR URGING THE BALL TOWARD A POSITION INTERMEDIATE THE PATIENT''S BREATHING PORT AND THE BALL SEAT AROUND THE INSPIRATORY PORT SUBSTANTIALLY ARRESTING FLOW THERETHROUGH.
Claim 2
Dependent Claim
149 words
A VALVE FOR USE WITH BREATHING EQUIPMENT COMPRISING A VALVE BODY OF NONMAGNETIC MATERIAL AND HAVING A GENERALLY CYLINDRICAL VALVE CHAMBER THEREIN WITH INSPIRATORY AND EXPIRATORY PORTS COMMUNICATING WITH THE CHAMBER TOWARD OPPOSITE ENDS THEREOF AND WITH A PATIENT''S BREATHING PORT COMMUNICATING WITH THE CHAMBER INTERMEDIATE THE INSPIRATORY AND EXPIRATORY PORTS, A BALL VALVE IN THE CHAMBER AND COMPRISING MAGNETIC MATERIAL, A BALL SEAT AROUND THE INSPIRATORY PORT ENGAGEABLE BY THE BALL TO CLOSE THE INSPIRATORY PORT, A BALL SEAT AROUND THE EXPIRATORY PORT ENGAGEABLE BY THE BALL TO CLOSE THE EXPIRATORY PORT, A CHECK VALVE ASSOCIATED WITH THE EXPIRATORY PORT AND POSITIONED TO PREVENT FLOW THROUGH THE EXPIRATORY PORT TOWARD THE PATIENT''S BREATHING PORT, AND MAGNETIC MEANS DISPOSED AROUND THE VALVE BODY EXTERNALLY THEREOF FOR URGING THE BALL TOWARD A POSITION INTERMEDIATE THE PATIENT''S BREATHING PORT AND THE BALL SEAT AROUND THE INSPIRATORY PORT SUBSTANTIALLY ARRESTING FLOW THERETHROUGH.
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) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |