Patent US3259112A successfully refreshed from Google Patents.
US3259112A
Expired / Lapsed
US
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Removable tube support
Assignee: Foster Wheeler Inc
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Filing: 1964-09-02
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Granted: 1966-07-05
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Expires: 1984-09-02
Abstract
No abstract record available.
Inventors
- 👤 Frank A Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:53
CPC Classifications
F; F22; F22B; F22B37/00; F22B37/02; F22B37/10; F22B37/20; F22B37/205; F28; F28F; F28F9/00; F28F9/007; F28F9/013
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A REMOVABLE SUPPORT ARRANGEMENT COMPRISING: AN EXTERNAL HEATER SHELL DEFINING A CONVECTION SECTION; APERTURE MEANS DEFINING OPPOSED OPENINGS THROUGH THE SHELL AND COMMUNICATION WITH THE EXTERNAL ATMOSPHERE; HORIZONTAL TUBES DISPOSED IN SAID CONVECTION SECTION; AT LEAST ONE HOLLOW OPEN ENDED RIGID TUBE DISPOSED IN TOUCHING ENGAGEMENT UNDERNEATH ONE OF THE HORIZONTAL TUBES IN THE CONVECTION SECTION FOR SUPPORTING THE HORIZONTAL TUBE; SAID RIGID TUBE BEING SLIDABLY ENGAGED AND SUPPORTED BY SAID APERTURE MEANS AND DISPOSED IN THE OPPOSED OPENINGS, THE RIGID TUBE BEING IN COMMUNICATION WITH THE EXTERNAL ATMOSPHERE; LOCKING MEANS ARRANGED TO RETAIN SAID RIGID TUBE IN FIXED ENGAGEMENT WITH SAID APERTURE MEANS; AND THE APERTURE MEANS BEING ARRANGED TO PERMIT LONGITUDINAL WITHDRAWAL OF THE RIGID THERETHROUGH.
Claim 2
Dependent Claim
118 words
A REMOVABLE SUPPORT ARRANGEMENT COMPRISING: AN EXTERNAL HEATER SHELL DEFINING A CONVECTION SECTION; APERTURE MEANS DEFINING OPPOSED OPENINGS THROUGH THE SHELL AND COMMUNICATION WITH THE EXTERNAL ATMOSPHERE; HORIZONTAL TUBES DISPOSED IN SAID CONVECTION SECTION; AT LEAST ONE HOLLOW OPEN ENDED RIGID TUBE DISPOSED IN TOUCHING ENGAGEMENT UNDERNEATH ONE OF THE HORIZONTAL TUBES IN THE CONVECTION SECTION FOR SUPPORTING THE HORIZONTAL TUBE; SAID RIGID TUBE BEING SLIDABLY ENGAGED AND SUPPORTED BY SAID APERTURE MEANS AND DISPOSED IN THE OPPOSED OPENINGS, THE RIGID TUBE BEING IN COMMUNICATION WITH THE EXTERNAL ATMOSPHERE; LOCKING MEANS ARRANGED TO RETAIN SAID RIGID TUBE IN FIXED ENGAGEMENT WITH SAID APERTURE MEANS; AND THE APERTURE MEANS BEING ARRANGED TO PERMIT LONGITUDINAL WITHDRAWAL OF THE RIGID THERETHROUGH.
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) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |