US3234932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Respirator
Assignee: Individual
•
Filing: 1963-02-04
•
Granted: 1966-02-15
•
Expires: 1983-02-04
Abstract
No abstract record available.
Inventors
- 👤 Forrest M Bird
- 👤 Henry L Pohndorf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:08
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/0003; A61M16/0009; A61M16/0012; A61M16/08; A61M16/0816; A61M16/0833; A61M16/10; A61M16/105; A61M16/106; A61M16/107
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
219 words
IN A RESPIRATORY APPARATUS HAVING A PATIENT ADAPTER AND HAVING AN INHALATION PHASE AND AN EXHALATION PHASE IN ITS OPERATIVE CYCLE, A BODY HAVING A MAIN PASSAGE ADAPTED TO BE CONNECTED TO THE PATIENT ADAPTER AND ALSO HAVING AN INLET AND AN OUTLET COMMUNICATING THEREWITH, AN EXHALATION VALVE MOUNTED ON SAID BODY BIASED TO A NORMALLY CLOSED POSITION AND SERVING TO PREVENT THE FLOW OF GASES THROUGH THE OUTLET FROM THE MAIN PASSAGE, ASPIRATOR MEANS IN COMMUNICATION WITH SAID PASSAGE FOR ESTABLISHING A REDUCED PRESSURE IN SAID PASSAGE IN SAID BODY, SAID MEANS INCLUDING A JET NOZZLE, AND MEANS FOR SUPPLYING GAS UNDER PRESSURE TO SAID JET NOZZLE, SAID LAST NAMED MEANS INCLUDING ADJUSTABLE METERING VALVE MEANS FOR PROVIDING A METERED FLOW OF SAID GAS, CONTROL VALVE MEANS MOVABLE BETWEEN OPEN AND CLOSED POSITIONS FOR CONTROLLING THE SUPPLY OF METERED GAS TO THE JET NOZZLE, AND MEANS FOR OPERATING THE CONTROL VALVE MEANS UPON INITIATION OF THE EXHALATION PHASE TO MOVE THE CONTROL VALVE MEANS TO AN OPEN POSITION AND TO MAINTAIN THE SAME IN AN OPEN POSITION ONLY DURING THE EXHALATION PHASE SO THAT GAS IS DISCHARGED FROM THE JET NOZZLE DURING THE TIME THE COMTROL VALVE MEANS IN OPEN THEREBY TO CAUSE THE ASPIRATOR MEANS TO ESTABLISH A REDUCED PRESSURE WITHIN THE MAIN PASSAGE OF THE BODY.
Claim 2
Dependent Claim
219 words
IN A RESPIRATORY APPARATUS HAVING A PATIENT ADAPTER AND HAVING AN INHALATION PHASE AND AN EXHALATION PHASE IN ITS OPERATIVE CYCLE, A BODY HAVING A MAIN PASSAGE ADAPTED TO BE CONNECTED TO THE PATIENT ADAPTER AND ALSO HAVING AN INLET AND AN OUTLET COMMUNICATING THEREWITH, AN EXHALATION VALVE MOUNTED ON SAID BODY BIASED TO A NORMALLY CLOSED POSITION AND SERVING TO PREVENT THE FLOW OF GASES THROUGH THE OUTLET FROM THE MAIN PASSAGE, ASPIRATOR MEANS IN COMMUNICATION WITH SAID PASSAGE FOR ESTABLISHING A REDUCED PRESSURE IN SAID PASSAGE IN SAID BODY, SAID MEANS INCLUDING A JET NOZZLE, AND MEANS FOR SUPPLYING GAS UNDER PRESSURE TO SAID JET NOZZLE, SAID LAST NAMED MEANS INCLUDING ADJUSTABLE METERING VALVE MEANS FOR PROVIDING A METERED FLOW OF SAID GAS, CONTROL VALVE MEANS MOVABLE BETWEEN OPEN AND CLOSED POSITIONS FOR CONTROLLING THE SUPPLY OF METERED GAS TO THE JET NOZZLE, AND MEANS FOR OPERATING THE CONTROL VALVE MEANS UPON INITIATION OF THE EXHALATION PHASE TO MOVE THE CONTROL VALVE MEANS TO AN OPEN POSITION AND TO MAINTAIN THE SAME IN AN OPEN POSITION ONLY DURING THE EXHALATION PHASE SO THAT GAS IS DISCHARGED FROM THE JET NOZZLE DURING THE TIME THE COMTROL VALVE MEANS IN OPEN THEREBY TO CAUSE THE ASPIRATOR MEANS TO ESTABLISH A REDUCED PRESSURE WITHIN THE MAIN PASSAGE OF THE BODY.
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) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |