US2909413A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for regulating the flow of fluids to reactors
Assignee: Hooker Chemical Corp
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Filing: 1956-08-31
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Granted: 1959-10-20
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Expires: 1976-08-31
Abstract
No abstract record available.
Inventors
- 👤 Joseph M Hildyard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:10
CPC Classifications
G; G05; G05D; G05D11/00; G05D11/02; G05D11/13; G05D11/131; G05D11/132; Y; Y10; Y10T; Y10T436/00; Y10T436/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
IN A METHOD FOR REGULATING THE FLOW OF FLUIDS INCLUDING A REACTOR AND A MASTER CONTROLLER WHICH DERIVES AN IMPULSE FROM AN EXTERNAL VARIABLE, THE IMPROVEMENT WHICH COMPRISES: APPLYING THE CONTROL IMPULSE OF SAID MASTER CONTROLLER TO SIMILAR SENSING INPUTS OF TWO OPPOPULSE SUMMING MEANS; APPLYING A CONTROL IMPULSE WHICH IS DERIVED FROM A RATIO CONTROLLING MEANS TO TWO OPPOSITE SENSING INPUTS OF SAID TWO IMPULSE SUMMING MEANS; SAID RATIO CONTROLLING MEANS DERIVING AN IMPULSE FROM FLOW ELEMENTS LOCATED IN EACH FLUID FEED LINE; APPLYING THE CONTROL IMPULSE OF SAID TWO IMPULSE SUMMING MEANS TO CONTROL VALVES LOCATAED IN EACH FLUID FEED LINE TO SAID REACTOR TO EFFECT LIKE ACTION IN SAID VALVES.
Claim 2
Dependent Claim
113 words
IN A METHOD FOR REGULATING THE FLOW OF FLUIDS INCLUDING A REACTOR AND A MASTER CONTROLLER WHICH DERIVES AN IMPULSE FROM AN EXTERNAL VARIABLE, THE IMPROVEMENT WHICH COMPRISES: APPLYING THE CONTROL IMPULSE OF SAID MASTER CONTROLLER TO SIMILAR SENSING INPUTS OF TWO OPPOPULSE SUMMING MEANS; APPLYING A CONTROL IMPULSE WHICH IS DERIVED FROM A RATIO CONTROLLING MEANS TO TWO OPPOSITE SENSING INPUTS OF SAID TWO IMPULSE SUMMING MEANS; SAID RATIO CONTROLLING MEANS DERIVING AN IMPULSE FROM FLOW ELEMENTS LOCATED IN EACH FLUID FEED LINE; APPLYING THE CONTROL IMPULSE OF SAID TWO IMPULSE SUMMING MEANS TO CONTROL VALVES LOCATAED IN EACH FLUID FEED LINE TO SAID REACTOR TO EFFECT LIKE ACTION IN SAID VALVES.
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) | 1962-10-19 | 1963-04-20 | 1963-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-19 | 1967-04-20 | 1967-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-19 | 1971-04-20 | 1971-10-20 | $7700.00 | Window Closed / Lapsed |