US3139903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansion valve with adjustable metering orifice
Assignee: TDK Micronas GmbH
•
Filing: 1961-02-21
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Granted: 1964-07-07
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Expires: 1981-02-21
Abstract
No abstract record available.
Inventors
- 👤 Harold J Lonn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:38
CPC Classifications
F; F25; F25B; F25B41/00; F25B41/30; F25B41/31; F25B41/33; F25B41/335; F25B2341/00; F25B2341/06; F25B2341/062; Y; Y10; Y10T; Y10T137/00; Y10T137/8158; Y10T137/8359; Y10T137/8593; Y10T137/87917; Y10T137/88054
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
IN A VALVE STRUCTURE: A VALVE BODY HAVING AN INLET OPENING AND AN OUTLET OPENING; SAID INLET OPENING EXTENDING ENTIRELY THROUGH THE VALVE BODY; THERE BEING A PASSAGE BETWEEN AN INTERMEDIATE PORTION OF SAID INLET OPENING AND THE OUTLET OPENING, SAID PASSAGE INCLUDING A PORT; A ROTARY HOLLOW CYLINDER GUIDED IN SAID INLET OPENING AND OVERLYING SAID PORT; SAID CYLINDER HAVING ANGULARLY SPACED OPENINGS OPTIONALLY REGISTRABLE WITH THE PORT TO FORM A METERING ORIFICE; THE INTERIOR OF THE CYLINDER BEING IN COMMUNICATION WITH THE INLET OPENING; A STEM FOR THE CYLINDER EXTENDING OUT OF THE BODY AND ROTATABLE TO ADJUST THE CYLINDER FOR REGISTERING ANY ONE OF SAID ANGULARLY SPACED OPENINGS WITH THE PORT; ONE END OF SAID CYLINDER FORMING AN ANNULAR SHOULDER AROUND THE STEM; A RESILIENT SEALING RING DISPOSED ON THE SHOULDER; A PACKING NUT
Claim 2
Dependent Claim
137 words
IN A VALVE STRUCTURE: A VALVE BODY HAVING AN INLET OPENING AND AN OUTLET OPENING; SAID INLET OPENING EXTENDING ENTIRELY THROUGH THE VALVE BODY; THERE BEING A PASSAGE BETWEEN AN INTERMEDIATE PORTION OF SAID INLET OPENING AND THE OUTLET OPENING, SAID PASSAGE INCLUDING A PORT; A ROTARY HOLLOW CYLINDER GUIDED IN SAID INLET OPENING AND OVERLYING SAID PORT; SAID CYLINDER HAVING ANGULARLY SPACED OPENINGS OPTIONALLY REGISTRABLE WITH THE PORT TO FORM A METERING ORIFICE; THE INTERIOR OF THE CYLINDER BEING IN COMMUNICATION WITH THE INLET OPENING; A STEM FOR THE CYLINDER EXTENDING OUT OF THE BODY AND ROTATABLE TO ADJUST THE CYLINDER FOR REGISTERING ANY ONE OF SAID ANGULARLY SPACED OPENINGS WITH THE PORT; ONE END OF SAID CYLINDER FORMING AN ANNULAR SHOULDER AROUND THE STEM; A RESILIENT SEALING RING DISPOSED ON THE SHOULDER; A PACKING NUT
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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) | 1967-07-07 | 1968-01-06 | 1968-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-07 | 1972-01-06 | 1972-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-07 | 1976-01-06 | 1976-07-07 | $7700.00 | Window Closed / Lapsed |