Patent FR844075A successfully refreshed from Google Patents.
Patent US3208436A successfully refreshed from Google Patents.
US3208436A
Expired / Lapsed
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Furnace wall support and expansion apparatus
Assignee: Babcock and Wilcox Co
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Filing: 1962-12-20
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Granted: 1965-09-28
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Expires: 1982-12-20
Abstract
No abstract record available.
Inventors
- 👤 Russell L Godshalk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:07
CPC Classifications
F; F22; F22B; F22B37/00; F22B37/62; F22B37/64; F22B37/66; F22B37/02; F22B37/10; F22B37/20; F22B37/202
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
IN A FLUID HEATING UNIT, IN COMBINATION, WALLS DEFINING A FURNACE CHAMBER, SAID WALLS BEING FORMED WITH A PLURALITY OF VERTICALLY EXTENDING CONTINUOUS TUBES, A RIGID STRUCTURAL SUPPORT SYSTEM ADJACENT SAID FURNACE CHAMBER FOR CARRY THE WEIGHT OF SAID WALLS, FIXED SUPPORT MEMBERS RIGIDLY ATTACHING SAIDSUPPORT SYSTEM TO EACH OF SAID TUBES IN SAID WALLS AT MORE THAN ONE ELEVATION ALONG THE HEIGHT OF SAID TUBES THEREBY FIXING THE POSITION OF ALL OF SAID TUBES AND WALLS AT SAID ELEVATIONS, AND MEANS POSITIONED INTERMEDIATE SAID MEMBERS FOR AC-
Claim 2
Dependent Claim
88 words
IN A FLUID HEATING UNIT, IN COMBINATION, WALLS DEFINING A FURNACE CHAMBER, SAID WALLS BEING FORMED WITH A PLURALITY OF VERTICALLY EXTENDING CONTINUOUS TUBES, A RIGID STRUCTURAL SUPPORT SYSTEM ADJACENT SAID FURNACE CHAMBER FOR CARRY THE WEIGHT OF SAID WALLS, FIXED SUPPORT MEMBERS RIGIDLY ATTACHING SAIDSUPPORT SYSTEM TO EACH OF SAID TUBES IN SAID WALLS AT MORE THAN ONE ELEVATION ALONG THE HEIGHT OF SAID TUBES THEREBY FIXING THE POSITION OF ALL OF SAID TUBES AND WALLS AT SAID ELEVATIONS, AND MEANS POSITIONED INTERMEDIATE SAID MEMBERS FOR AC-
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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) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |