US4019468A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Support for furnace tubes
Assignee: Combustion Engineering Inc
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Filing: 1976-04-21
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Granted: 1977-04-26
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Expires: 1996-04-21
Abstract
Abstract A furnace has its interior walls covered with tubes which carry fluids being heated has supports for the tubes extended from the furnace shell. The supports are attached to the inside of the shell and extend beyond the refractory lining the shell. A strap member on each support extends from, and is movable in, tracks of each support to clamp a tube to the support.
Inventors
- 👤 Bert Benton Miles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:29
CPC Classifications
F; F22; F22B; F22B37/00; F22B37/02; F22B37/10; F22B37/20; F22B37/204
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
134 words
A support structure for furnace tubes in a furnace space, including, a base member attached to the interior wall of the furnace space and extending its mass normal to the wall surface, a pair of holes extended through the base member in a direction parallel the surface of the wall, grooves in the body of the base and extending from each of the pair of holes normal the surface of the wall, and a strap member arranged with its ends engaged in the holes and extending along the grooves in the body of the base to provide lateral support to the strap member and about a furnace tube to capture the tube on the base and substantially shield the surface of the base from the heat of radiation of the combustion of the furnace.
Claim 2
Dependent Claim
134 words
A support structure for furnace tubes in a furnace space, including, a base member attached to the interior wall of the furnace space and extending its mass normal to the wall surface, a pair of holes extended through the base member in a direction parallel the surface of the wall, grooves in the body of the base and extending from each of the pair of holes normal the surface of the wall, and a strap member arranged with its ends engaged in the holes and extending along the grooves in the body of the base to provide lateral support to the strap member and about a furnace tube to capture the tube on the base and substantially shield the surface of the base from the heat of radiation of the combustion of the furnace.
Claim 3
Dependent Claim
42 words
The support structure of claim 1 in which, the strap member is in the form of a rod bent at its middle to the outside radius of the tube supported and bent at each end to enter the holes of the base.
Claim 4
Dependent Claim
39 words
The support structure of claim 2 in which, members are attached over and to the ends of the strap member to capture the strap in position on the base and in the base holes and about the tube supported.
Claim 5
Dependent Claim
85 words
The support structure of claim 1 in which, the base has a foot portion directly engaged with the attached to the interior wall surface of the furnace space, and the mass of the base flares from the foot portion to provide ear portions, each of which ear portion is penetrated by a hole for the strap member and a relatively small surface is provided at the extreme upper and central portion of the base with unshielded exposure to the radiation heat of the furnace combustion.
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) | 1980-04-25 | 1980-10-25 | 1981-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-25 | 1984-10-25 | 1985-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-25 | 1988-10-25 | 1989-04-26 | $7700.00 | Window Closed / Lapsed |