US3106936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pilot operated flow modulating valve and mounting means
Assignee: Link Belt Co
•
Filing: 1958-11-21
•
Granted: 1963-10-15
•
Expires: 1978-11-21
Abstract
No abstract record available.
Inventors
- 👤 Walter C Trautman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:22
CPC Classifications
G; G05; G05D; G05D7/00; G05D7/06; G05D7/0617; G05D7/0629; G05D7/0635; Y; Y10; Y10T; Y10T137/00; Y10T137/5109; Y10T137/7722; Y10T137/7758; Y10T137/7762; Y10T137/7764; Y10T137/7766; Y10T137/7781; Y10T137/7782; Y10T137/8593; Y10T137/85978; Y10T137/85986; Y10T137/86002; Y10T137/8601
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
180 words
A LIQUID FLOW CONTROL SYSTEM COMPRISING: A PIPELINE CONDUIT WITH A FLOW MODULATING VALVE MEANS IN FLOW CONTROL RELATIONSHIP IN SAID CONDUIT; MEANS FOR INTRODUCING LIQUID UNDER PRESSURE INTO SAID CONDUIT UPSTREAM OF SAID FLOW MODULATING VALVE MEANS; SAID FLOW MODULATING VALVE MEANS COMPRISING: A MAIN BLEED PISTON CONTROLLED VALVE; CONTROL HEAD MEANS; CONTROL MEANS PARTIALLY IN SAID CONTROL HEAD MEANS AND INCLUDING AT LEAST ONE FLUID PRESSURE BALANCED METERING VALVE IN FLUID COMMUNICATION WITH SAID BLEED PISTON TO CONTROL BACK PRESSURE ON SAID BLEED PISTON AS A FUNCTION OF FLOW THROUGH SAID METERING VALVE; MEANS FOR SENSING PRESSURE OF FLUID IN SAID PIPELINE CONDUIT CONTROLLED BY SAID MAIN VALVE AND LOADING SAID FLOW METERING VALVE IN ONE CONTROL DIRECTION IN ACCORD WITH THE SENSED PRESSURE; SELECTIVELY VARIABLE RESILIENT MEANS ACTING ON SAID FLOW METERING VALVE AGAINST THE SENSED PRESSURE LOADING; AND MEANS REMOVABLY MOUNTING SAID CONTROL HEAD MEANS ON SAID MAIN VALVE; SAID CONTROL HEAD MEANS INCLUDING CONTROL VALVE MOUNTING MEANS CARRYING SAID CONTROL VALVE MEANS; AND THE COMBINATION OF SAID MOUNTING MEANS FOR SAID CONTROL HEAD MEANS AND
Claim 2
Dependent Claim
180 words
A LIQUID FLOW CONTROL SYSTEM COMPRISING: A PIPELINE CONDUIT WITH A FLOW MODULATING VALVE MEANS IN FLOW CONTROL RELATIONSHIP IN SAID CONDUIT; MEANS FOR INTRODUCING LIQUID UNDER PRESSURE INTO SAID CONDUIT UPSTREAM OF SAID FLOW MODULATING VALVE MEANS; SAID FLOW MODULATING VALVE MEANS COMPRISING: A MAIN BLEED PISTON CONTROLLED VALVE; CONTROL HEAD MEANS; CONTROL MEANS PARTIALLY IN SAID CONTROL HEAD MEANS AND INCLUDING AT LEAST ONE FLUID PRESSURE BALANCED METERING VALVE IN FLUID COMMUNICATION WITH SAID BLEED PISTON TO CONTROL BACK PRESSURE ON SAID BLEED PISTON AS A FUNCTION OF FLOW THROUGH SAID METERING VALVE; MEANS FOR SENSING PRESSURE OF FLUID IN SAID PIPELINE CONDUIT CONTROLLED BY SAID MAIN VALVE AND LOADING SAID FLOW METERING VALVE IN ONE CONTROL DIRECTION IN ACCORD WITH THE SENSED PRESSURE; SELECTIVELY VARIABLE RESILIENT MEANS ACTING ON SAID FLOW METERING VALVE AGAINST THE SENSED PRESSURE LOADING; AND MEANS REMOVABLY MOUNTING SAID CONTROL HEAD MEANS ON SAID MAIN VALVE; SAID CONTROL HEAD MEANS INCLUDING CONTROL VALVE MOUNTING MEANS CARRYING SAID CONTROL VALVE MEANS; AND THE COMBINATION OF SAID MOUNTING MEANS FOR SAID CONTROL HEAD MEANS AND
References Cited (Backward Citations)
US246088A
Cited
US474244A
Cited
US479234A
Cited
US2853096A
Cited
US937774A
Cited
US1754250A
Cited
US2091596A
Cited
US2049233A
Cited
US2265210A
Cited
US2360816A
Cited
US2654975A
Cited
US2552892A
Cited
US2824733A
Cited
US2803451A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-10-14 | 1967-04-15 | 1967-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-14 | 1971-04-15 | 1971-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-14 | 1975-04-15 | 1975-10-15 | $7700.00 | Window Closed / Lapsed |