Patent US3253625A successfully refreshed from Google Patents.
US3097639A
Expired / Lapsed
US
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Respirometers
Assignee: Boeing Co
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Filing: 1961-03-28
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Granted: 1963-07-16
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Expires: 1981-03-28
Abstract
No abstract record available.
Inventors
- 👤 Streimer Irving
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:00
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/08; A61B5/0803; A61B5/103; A61B5/11; A61B5/113; A61B5/1135
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A RESPIROMETER DEVICE COMPRISING A CHEST ENCIRCLING BAND INCLUDING A RELATIVELY LONG INELASTIC PORTION HAVING SEPARATED ENDS INTERCONNECTED BY A RELATIVELY SHORT ELASTIC PORTION ADAPTED TO STRETCH AND CONTRACT ELASTICALLY AS THE PATIENT BREATHES, A POTENTIOMETER HAVING A BASE MOUNTED ON ONE OF SAID ENDS AND HAVING COOPERATING ELECTRICAL RESISTANCE AND WIPER ELEMENTS MOUNTED ON THE BASE, ONE SUCH ELEMENT FOR ROTATION RELATIVE TO THE OTHER, ACTUATING MEANS INCLUDING AN INELASTIC LINK CONNECTING THE ROTARY ELEMENT WITH THE OTHER OF SAID ENDS TO EFFECT ROTATION OF THE ELEMENT PROPORTIONAL TO CHANGE OF LENGTH OF SAID ELASTIC PORTION, AND ELECTRIC CIRCUIT MEANS CONNECTED TO THE RESISTANCE ELEMENT AND TO THE WIPER FOR DETECTING SUCH ROTATION, AND THEREBY CHEST CONTRACTION AND EXPANSION.
Claim 2
Dependent Claim
120 words
A RESPIROMETER DEVICE COMPRISING A CHEST ENCIRCLING BAND INCLUDING A RELATIVELY LONG INELASTIC PORTION HAVING SEPARATED ENDS INTERCONNECTED BY A RELATIVELY SHORT ELASTIC PORTION ADAPTED TO STRETCH AND CONTRACT ELASTICALLY AS THE PATIENT BREATHES, A POTENTIOMETER HAVING A BASE MOUNTED ON ONE OF SAID ENDS AND HAVING COOPERATING ELECTRICAL RESISTANCE AND WIPER ELEMENTS MOUNTED ON THE BASE, ONE SUCH ELEMENT FOR ROTATION RELATIVE TO THE OTHER, ACTUATING MEANS INCLUDING AN INELASTIC LINK CONNECTING THE ROTARY ELEMENT WITH THE OTHER OF SAID ENDS TO EFFECT ROTATION OF THE ELEMENT PROPORTIONAL TO CHANGE OF LENGTH OF SAID ELASTIC PORTION, AND ELECTRIC CIRCUIT MEANS CONNECTED TO THE RESISTANCE ELEMENT AND TO THE WIPER FOR DETECTING SUCH ROTATION, AND THEREBY CHEST CONTRACTION AND EXPANSION.
References Cited (Backward Citations)
US2428980A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-15 | 1967-01-14 | 1967-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-15 | 1971-01-14 | 1971-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-15 | 1975-01-14 | 1975-07-16 | $7700.00 | Window Closed / Lapsed |