US3452744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blood pressure monitoring apparatus
Assignee: Air Shields Inc
•
Filing: 1964-11-03
•
Granted: 1969-07-01
•
Expires: 1984-11-03
Abstract
No abstract record available.
Inventors
- 👤 Ronald A Van Den Nieuwenhof
- 👤 Edward P Romani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:39
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/02; A61B5/021; A61B5/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
219 words
BLOOD PRESSURE MEASURING APPARATUS COMPRISING PRESSURE OPERATED MEANS ADAPTED TO RESTRICT THE FLOW OF BLOOD THROUGH AN ARTERY UPON ADMISSION TO SAID MEANS OF FLUID UNDER PRESSURE ABOVE A PREDETERMINED VALUE; MEANS FOR SUPPLYING OPERATING FLUID AT PRESSURE ABOVE SAID PREDETERMINED VALUE; PRESSURE INDICATING MEANS; CONTROLLABLE VALVE MEANS FOR CONNECTING SAID SUPPLY MEANS TO SAID INDICATING MEANS AND SAID PRESSURE OPERATED MEANS; MEANS FOR OPERATING SAID VALVE MEANS TO CONNECT SAID SUPPLY MEANS TO SAID PRESSURE OPERATED MEANS AND TO SAID INDICATING MEANS AND THEREBY RAISE THE PRESSURE IN THE PRESSURE OPERATED MEANS ABOVE SAID PREDETERMINED VALUE AND FOR THEREAFTER DISCONNECTING SAID SUPPLY MEANS; MEANS FOR BLEEDING OFF PRESSURE FROM THE PRESSURE OPERATED MEANS TO A VALUE BELOW SAID PREDETERMINED VALUE; A TRANDUCER ADAPTED TO RESPOND TO BLOOD PRESSURE OPERATED MEANS TO THE ARTERY MORE REMOTE FROM THE HEART THAN THE PRESSURE OPERATED MEANS; CONTROL CIRCUIT MEANS RESPONSIVE TO THE PICK-UP OF EACH OF A PLURALITY OF PULSES BY SAID TRANSDUCER TO OPERATE SAID VALUE MEANS TO RECONNECT SAID SUPPLY MEANS AND THEREBY RE-ESTABLISHED A PRESSURE ABOVE SAID PREDETERMINED VALUE; SAID CONTROL CIRCUIT MEANS FURTHER INCLUDING MEANS FOR COUNTING SAID PULSES; AND MEAN CONTROLLED BY SAID COUNTING MEANS TO PROVIDE AGAINST RECONNECTION OF THE SUPPLY MEANS WHEN A PREDETERMINED NUMBER OF PULSES HAVE BEEN RECEIVED BY THE COUNTING MEANS.
Claim 2
Dependent Claim
219 words
BLOOD PRESSURE MEASURING APPARATUS COMPRISING PRESSURE OPERATED MEANS ADAPTED TO RESTRICT THE FLOW OF BLOOD THROUGH AN ARTERY UPON ADMISSION TO SAID MEANS OF FLUID UNDER PRESSURE ABOVE A PREDETERMINED VALUE; MEANS FOR SUPPLYING OPERATING FLUID AT PRESSURE ABOVE SAID PREDETERMINED VALUE; PRESSURE INDICATING MEANS; CONTROLLABLE VALVE MEANS FOR CONNECTING SAID SUPPLY MEANS TO SAID INDICATING MEANS AND SAID PRESSURE OPERATED MEANS; MEANS FOR OPERATING SAID VALVE MEANS TO CONNECT SAID SUPPLY MEANS TO SAID PRESSURE OPERATED MEANS AND TO SAID INDICATING MEANS AND THEREBY RAISE THE PRESSURE IN THE PRESSURE OPERATED MEANS ABOVE SAID PREDETERMINED VALUE AND FOR THEREAFTER DISCONNECTING SAID SUPPLY MEANS; MEANS FOR BLEEDING OFF PRESSURE FROM THE PRESSURE OPERATED MEANS TO A VALUE BELOW SAID PREDETERMINED VALUE; A TRANDUCER ADAPTED TO RESPOND TO BLOOD PRESSURE OPERATED MEANS TO THE ARTERY MORE REMOTE FROM THE HEART THAN THE PRESSURE OPERATED MEANS; CONTROL CIRCUIT MEANS RESPONSIVE TO THE PICK-UP OF EACH OF A PLURALITY OF PULSES BY SAID TRANSDUCER TO OPERATE SAID VALUE MEANS TO RECONNECT SAID SUPPLY MEANS AND THEREBY RE-ESTABLISHED A PRESSURE ABOVE SAID PREDETERMINED VALUE; SAID CONTROL CIRCUIT MEANS FURTHER INCLUDING MEANS FOR COUNTING SAID PULSES; AND MEAN CONTROLLED BY SAID COUNTING MEANS TO PROVIDE AGAINST RECONNECTION OF THE SUPPLY MEANS WHEN A PREDETERMINED NUMBER OF PULSES HAVE BEEN RECEIVED BY THE COUNTING MEANS.
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) | 1972-06-30 | 1972-12-30 | 1973-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-30 | 1976-12-30 | 1977-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-30 | 1980-12-30 | 1981-07-01 | $7700.00 | Window Closed / Lapsed |