US3332436A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature and pressure compensated liquid flow control
Assignee: Fawn Engineering Co
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Filing: 1965-04-05
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Granted: 1967-07-25
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Expires: 1985-04-05
Abstract
No abstract record available.
Inventors
- 👤 Welty Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:15
CPC Classifications
G; G05; G05D; G05D7/00; G05D7/01; G05D7/0126; G05D23/00; G05D23/01; G05D23/02; G05D23/08; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7737; Y10T137/7781; Y10T137/7784; Y10T137/7792
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
IN A FLOW-CONTROL DEVICE HAVING A THROTTLING VALVE OPERATED BY A SLIDING ELEMENT, SAID DEVICE HAVING A CYLINDER PORTION WITH A PISTON SLIDEABLE THEREIN CONNECTED WITH SAID ELEMENT FOR ACTUATING THE LATTER, SPRING MEANS ACTING ON THE ASSEMBLY OF SAID PISTON AND ELEMENT TO BIAS THE SAME IN ONE DIRECTION, AN AXIAL ORIFICE THROUGH SAID PISTON, PASSAGE MEANS THROUGH SAID DEVICE FOR LIQUID FLOW THERETHROUGH COMPRISING SAID ORIFICE AND SAID THROTTLING VALVE IN SERIES WHEREBY SAID PISTON AND ELEMENT ASSEMBLY IS
Claim 2
Dependent Claim
81 words
IN A FLOW-CONTROL DEVICE HAVING A THROTTLING VALVE OPERATED BY A SLIDING ELEMENT, SAID DEVICE HAVING A CYLINDER PORTION WITH A PISTON SLIDEABLE THEREIN CONNECTED WITH SAID ELEMENT FOR ACTUATING THE LATTER, SPRING MEANS ACTING ON THE ASSEMBLY OF SAID PISTON AND ELEMENT TO BIAS THE SAME IN ONE DIRECTION, AN AXIAL ORIFICE THROUGH SAID PISTON, PASSAGE MEANS THROUGH SAID DEVICE FOR LIQUID FLOW THERETHROUGH COMPRISING SAID ORIFICE AND SAID THROTTLING VALVE IN SERIES WHEREBY SAID PISTON AND ELEMENT ASSEMBLY IS
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |