US3305207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Micrometering valve
Assignee: National Welding Equipment Co
•
Filing: 1964-03-30
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Granted: 1967-02-21
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Expires: 1984-03-30
Abstract
No abstract record available.
Inventors
- 👤 John H Calderoni
- 👤 Anthony J Iozzi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:47
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/32; F16K1/52; F16K5/00; F16K5/08; F16K5/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A FINE-METERING FLUID VALVE INCLUDING IN COMBINATION: A HOLLOW HOUSING HAVING A CENTRAL AXIAL PASSAGE WITH A REDUCED-SIZE AXIAL INLET AT ONE END CONNECTED TO THE CENTRAL PASSAGE BY AN ANNULAR VALVE SEAT LEDGE, SAID HOUSING HAVING A THREADED DISTAL END PORTION, SAID HOUSING ALSO HAVING AN OUTLET PASSAGE MEETING SAID CENTRAL PASSAGE AND SPACED AWAY AT ALL POINTS FROM SAID INLET PASSAGE, A NON-ROTATING VALVE CLOSURE MEMBER, COMPRISING A STEM EXTENDING ALONG THE AXIS IN SAID CENTRAL PASSAGE AND HAVING A BALL AT ITS DISTAL END AND HAVING A CLOSURE NOSE WITH A FORWARD PORTION MOVABLE IN SAID INLET PASSAGE AND A REAR PORTION ADAPTED TO ENGAGE SAID VALVE SEAT AND CLOSE OFF THE INLET PASSAGE, MEANS SEALING BETWEEN THE STEM OF SAID VALVE CLOSURE MEMBER AND SAID HOUSING,
Claim 2
Dependent Claim
130 words
A FINE-METERING FLUID VALVE INCLUDING IN COMBINATION: A HOLLOW HOUSING HAVING A CENTRAL AXIAL PASSAGE WITH A REDUCED-SIZE AXIAL INLET AT ONE END CONNECTED TO THE CENTRAL PASSAGE BY AN ANNULAR VALVE SEAT LEDGE, SAID HOUSING HAVING A THREADED DISTAL END PORTION, SAID HOUSING ALSO HAVING AN OUTLET PASSAGE MEETING SAID CENTRAL PASSAGE AND SPACED AWAY AT ALL POINTS FROM SAID INLET PASSAGE, A NON-ROTATING VALVE CLOSURE MEMBER, COMPRISING A STEM EXTENDING ALONG THE AXIS IN SAID CENTRAL PASSAGE AND HAVING A BALL AT ITS DISTAL END AND HAVING A CLOSURE NOSE WITH A FORWARD PORTION MOVABLE IN SAID INLET PASSAGE AND A REAR PORTION ADAPTED TO ENGAGE SAID VALVE SEAT AND CLOSE OFF THE INLET PASSAGE, MEANS SEALING BETWEEN THE STEM OF SAID VALVE CLOSURE MEMBER AND SAID HOUSING,
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |