Patent US3199201A successfully refreshed from Google Patents.
US3199201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air gauge head
Assignee: FREELAND GAUGE CO
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Filing: 1963-10-30
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Granted: 1965-08-10
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Expires: 1983-10-30
Abstract
No abstract record available.
Inventors
- 👤 William A Minix
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:51
CPC Classifications
G; G01; G01B; G01B13/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
IN AN AIR GAUGE FOR CONTROLLING AIR BLEEDING IN A PNEUMATIC MEASURING CIRCUIT AND INCLUDING AN ELONGATED BODY HAVING A BORE, RADIAL AIR OUTLETS COMMUNICATING WITH THE BORE AND AN ELONGATED AIR INLET; A CYLINDRICAL AIR INLET BEARING IN SAID INLET COMMUNICATING WITH SAID BORE; A HOLLOW OPEN ENDED BEARING NUT PROJECTED INTO SAID BORE AT AND ENGAGING ONE END OF THE BODY; A WORK PIECE ENGAGING STEM AXIALLY MOUNTED WITHIN THE BODY AND ADJACENT ITS OPPOSITE ENDS GUIDABLY, SLIDABLY AND AXIALLY JOURNALLED RESPECTIVELY IN SAID INTAKE BEARING AND SAID BEARING NUT; THE IMPROVEMENT COMPRISING: AN AXIALLY MOVABLE SPRING BIASED NORMALLY CLOSED AUTOMATIC AIR SHUT-OFF VALVE OF CYLINDRICAL SHAPTE SNUGLY
Claim 2
Dependent Claim
110 words
IN AN AIR GAUGE FOR CONTROLLING AIR BLEEDING IN A PNEUMATIC MEASURING CIRCUIT AND INCLUDING AN ELONGATED BODY HAVING A BORE, RADIAL AIR OUTLETS COMMUNICATING WITH THE BORE AND AN ELONGATED AIR INLET; A CYLINDRICAL AIR INLET BEARING IN SAID INLET COMMUNICATING WITH SAID BORE; A HOLLOW OPEN ENDED BEARING NUT PROJECTED INTO SAID BORE AT AND ENGAGING ONE END OF THE BODY; A WORK PIECE ENGAGING STEM AXIALLY MOUNTED WITHIN THE BODY AND ADJACENT ITS OPPOSITE ENDS GUIDABLY, SLIDABLY AND AXIALLY JOURNALLED RESPECTIVELY IN SAID INTAKE BEARING AND SAID BEARING NUT; THE IMPROVEMENT COMPRISING: AN AXIALLY MOVABLE SPRING BIASED NORMALLY CLOSED AUTOMATIC AIR SHUT-OFF VALVE OF CYLINDRICAL SHAPTE SNUGLY
References Cited (Backward Citations)
US2831257A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |