US2850364A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plug type catalyst control valve for orthoflow system
Assignee: MW Kellogg Co
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Filing: 1954-02-08
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Granted: 1958-09-02
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Expires: 1974-02-08
Abstract
No abstract record available.
Inventors
- 👤 Edward D Dowling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:45
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/0015; B01J8/0035; F; F16; F16K; F16K1/00; F16K1/32; F16K1/34; F16K1/36; F16K1/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
A VALVE FOR CONTROLLING FLUID FLOW BETWEEN A CHAMBER AND THE FREE END OF AN ELONGATED INTERNAL CONDUIT EXTENDING DOWNWARDLY THEREIN AND FOR EFFECTING COMPLETE CLOSURE BETWEEN SAID CHAMBER AND SAID INTERNAL CONDUIT, COMPRISING A PLUG-TYPE CLOSURE MEMBER SEATABLE IN THE OPEN END OF SAID CONDUIT, AND MOVABLE IN A VERTICAL PATH BELOW SAID CONDUIT, TO VARY THE FREE PATH OF SAID FLUID BETWEEN SAID CLOSURE MEMBER AND SAID OPEN END OF SAID CONDUIT, AN ELONGATED VALVE STEM SECURED TO SAID CLOSURE MEMBER, MOTOR MEANS CONNECTED TO SAID VALVE STEM FOR MOVING THE STEM ALONG SAID VERTICAL PATH, YIELDABLE SPRING MEANS ADAPTED TO ACCOMMODATE BY COMPRESSION ANY INCREASE IN THE LENGTH OF SAID VALVE STEM AND INTERNAL CONDUIT WHEN SAID CLOSURE MEMBER IS SEATED AGAINST SAID OPEN END OF SAID CONDUIT, AND MEANS RESPONSIVE TO THE DEGREE OF COMPRESSION OF SAID YIELDABLE SPRING MEANS TO ACTUATE SAID MOTOR MEANS TO MOVE SAID STEM ALONG SAID PATH TO MAINTAIN SAID VALVE IN CLOSED POSITION.
Claim 2
Dependent Claim
163 words
A VALVE FOR CONTROLLING FLUID FLOW BETWEEN A CHAMBER AND THE FREE END OF AN ELONGATED INTERNAL CONDUIT EXTENDING DOWNWARDLY THEREIN AND FOR EFFECTING COMPLETE CLOSURE BETWEEN SAID CHAMBER AND SAID INTERNAL CONDUIT, COMPRISING A PLUG-TYPE CLOSURE MEMBER SEATABLE IN THE OPEN END OF SAID CONDUIT, AND MOVABLE IN A VERTICAL PATH BELOW SAID CONDUIT, TO VARY THE FREE PATH OF SAID FLUID BETWEEN SAID CLOSURE MEMBER AND SAID OPEN END OF SAID CONDUIT, AN ELONGATED VALVE STEM SECURED TO SAID CLOSURE MEMBER, MOTOR MEANS CONNECTED TO SAID VALVE STEM FOR MOVING THE STEM ALONG SAID VERTICAL PATH, YIELDABLE SPRING MEANS ADAPTED TO ACCOMMODATE BY COMPRESSION ANY INCREASE IN THE LENGTH OF SAID VALVE STEM AND INTERNAL CONDUIT WHEN SAID CLOSURE MEMBER IS SEATED AGAINST SAID OPEN END OF SAID CONDUIT, AND MEANS RESPONSIVE TO THE DEGREE OF COMPRESSION OF SAID YIELDABLE SPRING MEANS TO ACTUATE SAID MOTOR MEANS TO MOVE SAID STEM ALONG SAID PATH TO MAINTAIN SAID VALVE IN CLOSED POSITION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-01 | 1962-03-03 | 1962-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-01 | 1966-03-03 | 1966-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-01 | 1970-03-03 | 1970-09-02 | $7700.00 | Window Closed / Lapsed |