US3812798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mounting means for a refractory shield
Assignee: Merkle Engineers Inc
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Filing: 1973-02-28
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Granted: 1974-05-28
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Expires: 1993-02-28
Abstract
Abstract Mounting means for a suspended refractory shield such as a furnace wall or roof in a high temperature furnace comprises a support beam providing structural support for the refractory shield, a hollow, structural hanger tube depending from the support beam, metal hanger means engaging the hanger tube through oblong openings provided therein, and a cooling fluid supply means communicating with the hanger tube through the open end thereof. In use, a cooling fluid is passed through the oblong openings and cools the metal hanger means.
Inventors
- 👤 F Merkle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:52
CPC Classifications
F; F23; F23M; F23M5/00; F23M5/08; F23M5/085
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
212 words
A mounting means for a suspended refractory shield for a high-temperature furnace which comprises a support beam providing structural support for the refractory shield; a hollow hanger tube provided with mounting means attaching to said support beam and depending from said support beam, and having at least one open end and one face with a plurality of longitudinally-arranged oblong openings in said face; metal hanger means for supporting said refractory shield, said hanger means having a body portion and at one end opposed side lugs, said side lugs being adapted to be rEceived within one of said oblong openings and abutting the inner surface of said hanger tube adjacent said opening and holding means at the other end of said body portion adapted to engage and hold refractory brick forming a part of the refractory shield; a cooling fluid supply means operatively communicating with said hanger tube through an open end of said hanger tube; said oblong opening receiving the body portion of said hanger means having a cross-sectional area which is greater than the cross-sectional area of the received body portion, the cooling fluid introduced at one end of said hollow hanger tube flowing the length of said tube passing outwardly at said oblong openings thereby cooling said metal hanger means.
Claim 2
Dependent Claim
212 words
A mounting means for a suspended refractory shield for a high-temperature furnace which comprises a support beam providing structural support for the refractory shield; a hollow hanger tube provided with mounting means attaching to said support beam and depending from said support beam, and having at least one open end and one face with a plurality of longitudinally-arranged oblong openings in said face; metal hanger means for supporting said refractory shield, said hanger means having a body portion and at one end opposed side lugs, said side lugs being adapted to be rEceived within one of said oblong openings and abutting the inner surface of said hanger tube adjacent said opening and holding means at the other end of said body portion adapted to engage and hold refractory brick forming a part of the refractory shield; a cooling fluid supply means operatively communicating with said hanger tube through an open end of said hanger tube; said oblong opening receiving the body portion of said hanger means having a cross-sectional area which is greater than the cross-sectional area of the received body portion, the cooling fluid introduced at one end of said hollow hanger tube flowing the length of said tube passing outwardly at said oblong openings thereby cooling said metal hanger means.
Claim 3
Dependent Claim
16 words
The mounting means in accordance with claim 1 wherein said oblong openings are rectangular in configuration.
Claim 4
Dependent Claim
65 words
The mounting means in accordance with claim 1 wherein said hanger tube depends from said support beam substantially vertically, wherein a substantially horizontal shelf means is mounted on said flat face and is adapted to receive a stack of refractory bricks, and wherein said free ends of said arm portions are adapted to engage and hold a refractory brick in said stack of refractory bricks.
Claim 5
Dependent Claim
33 words
The mounting means in accordance with claim 1 wherein an adjustable vent means is provided near the open end of said hanger tube for regulating flow of cooling fluid into said hanger tube.
Claim 6
Dependent Claim
19 words
The mounting means in accordance with claim 1 wherein the hanger tube face having said openings is generally flat.
Claim 7
Dependent Claim
99 words
A hanger tube for retaining refractory brick in a high-temperature furnace comprising a hollow tube member having at least one open end adapted for communication with a cooling fluid supply means, one face provided with a plurality of longitudinally-arranged oblong openings which are adapted to receive and retain metal hangers for refractory bricks, the cooling fluid supplied at one end of said hollow hanger tube flowing the length of the tube exiting at said oblong openings thereby cooling the metal hangers, and a mounting lug on said hollow tube member for attaching the hanger tube to a support beam.
Claim 8
Dependent Claim
99 words
A hanger tube for retaining refractory brick in a high-temperature furnace comprising a hollow tube member having at least one open end adapted for communication with a cooling fluid supply means, one face provided with a plurality of longitudinally-arranged oblong openings which are adapted to receive and retain metal hangers for refractory bricks, the cooling fluid supplied at one end of said hollow hanger tube flowing the length of the tube exiting at said oblong openings thereby cooling the metal hangers, and a mounting lug on said hollow tube member for attaching the hanger tube to a support beam.
Claim 9
Dependent Claim
33 words
The hanger tube in accordance with claim 6 wherein an adjustable vent means is provided at the open end of said tube member for regulating flow of cooling fluid into said tube member.
Claim 10
Dependent Claim
33 words
The hanger tube in accordance with claim 6 further provided with a substantially horizontal shelf means mounted on the face of said hanger tube and adapted to receive a stack of refractory bricks.
Claim 11
Dependent Claim
119 words
The hanger tube in accordance with claim 6 wherein a spring-loaded rocker backing plate means is provided at one end of said hanger tube and comprises a generaly flat plate pivotally mounted across one end of said hanger tube so as to pivot on an axis substantially normal to the longitudinal axis of said hanger tube and having first and second plate portions extending beyond said hanger tube on opposite sides of the pivot axis, and a compression spring means mounted on said hanger tube and abutting the first extending plate portion of said plate; the second extending plate portion being adapted to abut a refractory brick hung from said hanger tube expand due to an increase in temperature.
Claim 12
Dependent Claim
17 words
The hanger tube in accordance with claim 6 wherein the face having said openings is generally flat.
Claim 13
Independent Claim
231 words
A method of cooling metal hangers for a refractory shield of a high-temperature furnace of the type having a support beam providing structural support for the refractory shield; a hollow hanger tube provided with mounting means attaching to said support beam and depending from said support beam, and having at least one open end and one face with a plurality of longitudinally-arranged oblong openings in said face; metal hanger means for supporting said refractory shield, said hanger means having a body portion and at one end opposed side lugs, said side lugs being adapted to be received within one of said oblong openings and abutting the inner surface of said hanger tube adjacent said opening and holding means at the other end of said body portion adapted to engage and hold refractory brick forming a part of the refractory shield; a cooling fluid supply means operatively communicating with said hanger tube through an open end of said hanger tube; said oblong opening receiving the body portion of said hanger means having a cross-sectional area which is greater than the cross-sectional area of the received body portion comprising: supplying a cooling fluid through an open end of said hanger tube under positive pressure; passing the cooling fluid the length of the hanger tube, the cooling fluid flowing outwardly through said oblong openings thereby cooling the metal hangers received within the oblong openings.
Claim 14
Independent Claim
231 words
A method of cooling metal hangers for a refractory shield of a high-temperature furnace of the type having a support beam providing structural support for the refractory shield; a hollow hanger tube provided with mounting means attaching to said support beam and depending from said support beam, and having at least one open end and one face with a plurality of longitudinally-arranged oblong openings in said face; metal hanger means for supporting said refractory shield, said hanger means having a body portion and at one end opposed side lugs, said side lugs being adapted to be received within one of said oblong openings and abutting the inner surface of said hanger tube adjacent said opening and holding means at the other end of said body portion adapted to engage and hold refractory brick forming a part of the refractory shield; a cooling fluid supply means operatively communicating with said hanger tube through an open end of said hanger tube; said oblong opening receiving the body portion of said hanger means having a cross-sectional area which is greater than the cross-sectional area of the received body portion comprising: supplying a cooling fluid through an open end of said hanger tube under positive pressure; passing the cooling fluid the length of the hanger tube, the cooling fluid flowing outwardly through said oblong openings thereby cooling the metal hangers received within the oblong openings.
Claim 15
Dependent Claim
13 words
The method in accordance with claim 11 wherein the cooling fluid is air.
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) | 1977-05-27 | 1977-11-26 | 1978-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-27 | 1981-11-26 | 1982-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-27 | 1985-11-26 | 1986-05-28 | $7700.00 | Window Closed / Lapsed |