US3197930A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite refractory wall
Assignee: MH Detrick Co
•
Filing: 1961-08-21
•
Granted: 1965-08-03
•
Expires: 1981-08-21
Abstract
No abstract record available.
Inventors
- 👤 Kenneth T Kimmlinger
- 👤 Walker T Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:00
CPC Classifications
F; F27; F27D; F27D1/00; F27D1/0003; F27D1/004; C; C21; C21D; C21D9/00; C21D9/70; F27D1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
A COMPOSITE WALL HAVING AN INNER HEAT EXPOSED FACE AND AN OUTER FACE, COMPRISING A RIGID OUTER METALLIC WALL, A CORE OF PREFIRED REFRACTORY MEMBERS MOUNTED IN SPACED RELATION TO SAID METALLIC WALL, THE REFRACTORY MEMBERS OF SAID CORE BEING INTERLOCKED WITH EACH OTHER AGAINST RELATIVE MOVEMENT TRANSVERSELY OF SAID CORE, A MONOLITHIC ZONE OF CASE-IN-SITU REFRACTORY MATERIAL EXTENDING FROM SAID CORE TO THE INNER HEAT EXPOSED FACE OF SAID WALL AND A ZONE OF HEAT INSULATING MATERIAL BETWEEN SAID CORE AND SAID METALLIC WALL, SAID CORE HAVING A MAIN BODY PORTION AND STEPPED TAPERING PORTIONS PROJECTING LATERALLY INWARDLY FROM SAID MAIN BODY PORTION INTO SAID MONOLITHIC REFRACTORY ZONE AND INTERLOCKED WITH THE MONOLITHIC REFRACTORY MATERIAL OF SAID MONOLITHIC ZONE AGAINST RELATIVE MOVEMENT TRANSVERSELY OF SAID WALL, SAID STEPPED TAPERING PORTIONS BEING SPACED LONGITUDINALLY OF SAID CORE AND COMPRISING GROUPS OF INTERLOCKED PREFIRED REFRACTORY MEMBERS INTERLOCKED WITH ADJACENT REFRACTORY MEMBERS OF SAID CORE AGAINST RELATIVE MOVEMENT TRANSVERSELY OF SAID CORE, SAID GROUPS INCLUDING PREFIRED REFRACTORY MEMBERS EXTENDING TO THE HEAT EXPOSED FACE OF SAID WALL AND PREFIRED REFRAC-
Claim 2
Dependent Claim
178 words
A COMPOSITE WALL HAVING AN INNER HEAT EXPOSED FACE AND AN OUTER FACE, COMPRISING A RIGID OUTER METALLIC WALL, A CORE OF PREFIRED REFRACTORY MEMBERS MOUNTED IN SPACED RELATION TO SAID METALLIC WALL, THE REFRACTORY MEMBERS OF SAID CORE BEING INTERLOCKED WITH EACH OTHER AGAINST RELATIVE MOVEMENT TRANSVERSELY OF SAID CORE, A MONOLITHIC ZONE OF CASE-IN-SITU REFRACTORY MATERIAL EXTENDING FROM SAID CORE TO THE INNER HEAT EXPOSED FACE OF SAID WALL AND A ZONE OF HEAT INSULATING MATERIAL BETWEEN SAID CORE AND SAID METALLIC WALL, SAID CORE HAVING A MAIN BODY PORTION AND STEPPED TAPERING PORTIONS PROJECTING LATERALLY INWARDLY FROM SAID MAIN BODY PORTION INTO SAID MONOLITHIC REFRACTORY ZONE AND INTERLOCKED WITH THE MONOLITHIC REFRACTORY MATERIAL OF SAID MONOLITHIC ZONE AGAINST RELATIVE MOVEMENT TRANSVERSELY OF SAID WALL, SAID STEPPED TAPERING PORTIONS BEING SPACED LONGITUDINALLY OF SAID CORE AND COMPRISING GROUPS OF INTERLOCKED PREFIRED REFRACTORY MEMBERS INTERLOCKED WITH ADJACENT REFRACTORY MEMBERS OF SAID CORE AGAINST RELATIVE MOVEMENT TRANSVERSELY OF SAID CORE, SAID GROUPS INCLUDING PREFIRED REFRACTORY MEMBERS EXTENDING TO THE HEAT EXPOSED FACE OF SAID WALL AND PREFIRED REFRAC-
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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) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |