Patent US3221283A successfully refreshed from Google Patents.
US3221283A
Expired / Lapsed
US
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Pressure-measuring boxes
Assignee: US Philips Corp
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Filing: 1961-09-18
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Granted: 1965-11-30
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Expires: 1981-09-18
Abstract
No abstract record available.
Inventors
- 👤 Ziggel Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:34
CPC Classifications
G; G01; G01L; G01L9/00; G01L9/0001; G01L9/0002; G01L1/00; G01L1/20; G01L1/22; G01L1/2206; G01L1/2231
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A PRESSURE MEASURING BOX COMPRISING A STRAIN GAUGE HAVING EXTENSION MEASURING ELEMENTS, A TUBE HAVING A PAIR OF ELEMENTS CLOSING THE OPPOSITE OPEN ENDS OF SAID TUBE AND HAVING OUTER SURFACES FOR RECEIVING THE PRESSURE, SAID TUBE FURTHER BEING PROVIDED WITH SECTIONS OF DIFFERENT WALL THICKNESSES, AND A TRANSVERSE WALL EXTENDING ACROSS SAID TUBE AND CONNECTING THE TUBE SECTIONS OF DIFFERENT WALL THICKNESSES, SAID TRANSVERSE WALL CONTAINING SAID EXTENSION MEASURING ELEMENTS OF THE STRAIN GAUGES, SAID PRESSURE BEING APPLIED TO THE WALL SECTION OF GREATER THICKNESS AND TO A PART OF SAID TRANSVERSE WALL ADJACENT TO THE CIRCUMFERENCE THEREOF, AND SAID CIRCUMFERENCE OF SAID TRANSVERSE WALL BEING SUPPORTED BY SAID WALL SECTION OF SMALLER THICKNESS.
Claim 2
Dependent Claim
115 words
A PRESSURE MEASURING BOX COMPRISING A STRAIN GAUGE HAVING EXTENSION MEASURING ELEMENTS, A TUBE HAVING A PAIR OF ELEMENTS CLOSING THE OPPOSITE OPEN ENDS OF SAID TUBE AND HAVING OUTER SURFACES FOR RECEIVING THE PRESSURE, SAID TUBE FURTHER BEING PROVIDED WITH SECTIONS OF DIFFERENT WALL THICKNESSES, AND A TRANSVERSE WALL EXTENDING ACROSS SAID TUBE AND CONNECTING THE TUBE SECTIONS OF DIFFERENT WALL THICKNESSES, SAID TRANSVERSE WALL CONTAINING SAID EXTENSION MEASURING ELEMENTS OF THE STRAIN GAUGES, SAID PRESSURE BEING APPLIED TO THE WALL SECTION OF GREATER THICKNESS AND TO A PART OF SAID TRANSVERSE WALL ADJACENT TO THE CIRCUMFERENCE THEREOF, AND SAID CIRCUMFERENCE OF SAID TRANSVERSE WALL BEING SUPPORTED BY SAID WALL SECTION OF SMALLER THICKNESS.
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) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |