Patent US3825409A successfully refreshed from Google Patents.
US3825409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Panelized suspended furnace roof and improved feed hole
Assignee: Individual
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Filing: 1973-08-02
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Granted: 1974-07-23
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Expires: 1993-08-02
Abstract
Abstract A suspended furnace roof is disclosed having an overhead metal framework involving spaced-apart crossextending girders and longitudinally extending spaced-apart beams that are adapted to extend between the girders and to be adjustably positioned in the spacing therebetween. A basically three-part hanger assembly is detachably suspended from the beam members and projects downwardly therefrom to detachably carry refractory tile members that may be assembled and shipped as a palletized group and, as such a group, mounted on such a hanger assembly at the construction site and while carried thereby, moved into a mounted position on an associated beam to close-off a portion of the furnace roof. A tertiary or uppermost hanger part of each assembly has a transverse yoke-like arm that at each of its ends has a flanged member from which opposed rows of secondary hanger parts are suspended to carry tile-suspending primary hanger parts. For feeding charging materials, the furnace roof may have at least one feed hole construction. This construction is shown as a pivotally and removably mounted feed and closure door and sealing ring assembly, and as employed with an assembly of feed hole defining refractory blocks that are independently carried by a unitary metal frame. The block assembly is constructed to be moved as a truck unit on the unitary frame to one side of the furnace roof to facilitate construction, maintenance and repair work.
Inventors
- 👤 L Longenecker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:28
CPC Classifications
F; F27; F27D; F27D1/00; F27D1/02; F27D1/021; F27D9/00; F27D2009/0002; F27D2009/0005
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
101 words
In an improved furnace roof construction for mounting on a supporting metal framework having a horizontally and vertically extending member assembly, as assembly of refractory blocks in the form of a continuous rim wall that inwardly defines a feed opening for the furnace, a unitary metal frame suspended from the supporting metal framework and engaging outer peripheral reaches of said block assembly for carrying said block assembly on the supporting framework, and wheel-like door means rotatably carried by the supporting framework independently of said block assembly for movement into and out of a closing-off position with respect to the feed opening.
Claim 2
Dependent Claim
101 words
In an improved furnace roof construction for mounting on a supporting metal framework having a horizontally and vertically extending member assembly, as assembly of refractory blocks in the form of a continuous rim wall that inwardly defines a feed opening for the furnace, a unitary metal frame suspended from the supporting metal framework and engaging outer peripheral reaches of said block assembly for carrying said block assembly on the supporting framework, and wheel-like door means rotatably carried by the supporting framework independently of said block assembly for movement into and out of a closing-off position with respect to the feed opening.
Claim 3
Dependent Claim
38 words
In an improved furnace roof construction as defined in claim 1, means movably positioning said unitary metal frame on the supporting framework for directly moving said block assembly longitudinally into and out of position in the furnace roof.
Claim 4
Dependent Claim
35 words
In an improved furnace roof construction as defined in claim 2, said movable means comprising wheel-like elements cooperating with said unitary frame and with horizontally extending members of said unitary frame and the supporting framework.
Claim 5
Dependent Claim
36 words
In an improved furnace roof construction as defined in claim 3, track means carried by said unitary frame and by the supporting framework, and said wheel-like elements being operatively mounted for movement along said track means.
Claim 6
Dependent Claim
58 words
In an improved furnace construction as defined in claim 3, one set of said wheel-like elements being carried by the supporting framework adjacent a side of said block assembly, and a second set of said wheel-like elements being carried by said unitary metal frame and cooperating with the supporting framework adjacent an opposite side of said block assembly.
Claim 7
Dependent Claim
60 words
In an improved furnace roof construction as defined in claim 1, a group of refractory roof tile members positioned in a cooperative roof closing-off relation along an outer periphery of said refractory block assembly, and beam and hanger members carried by the supporting framework fOr removably suspending said tile members in the furnace roof independently of said refractory block assembly.
Claim 8
Dependent Claim
145 words
In an improved furnace construction for mounting on a supporting metal framework having a horizontally and vertically extending member assembly, an assembly of refractory blocks in the form of a continuous rim wall that inwardly defines a feed opening for the furnace, a unitary metal frame suspended from the support metal framework and engaging outer reaches of said block assembly for carrying the assembly on the supporting framework, said block assembly having a seating portion about an inner periphery of said rim wall, an overhead vertical feed housing assembly having a seating ring carried by a lower end portion thereof and adapted to fit on said seating portion, and door means having a refractory face operatively mounted with respect to said feed housing assembly for movement into and out of a seating position with said ring when said ring is positioned on said seating portion.
Claim 9
Dependent Claim
145 words
In an improved furnace construction for mounting on a supporting metal framework having a horizontally and vertically extending member assembly, an assembly of refractory blocks in the form of a continuous rim wall that inwardly defines a feed opening for the furnace, a unitary metal frame suspended from the support metal framework and engaging outer reaches of said block assembly for carrying the assembly on the supporting framework, said block assembly having a seating portion about an inner periphery of said rim wall, an overhead vertical feed housing assembly having a seating ring carried by a lower end portion thereof and adapted to fit on said seating portion, and door means having a refractory face operatively mounted with respect to said feed housing assembly for movement into and out of a seating position with said ring when said ring is positioned on said seating portion.
Claim 10
Dependent Claim
46 words
In an improved furnace roof construction as defined in claim 7, said unitary frame extending about said block assembly and having truck and track means carrying said block assembly for direct horizontal movement on the supporting framework into and out of position in the furnace roof.
Claim 11
Dependent Claim
43 words
In an improved furnace roof construction as defined in claim 8, means for moving said feed housing assembly out of position with respect to said block assembly preliminary to moving said block assembly on said truck out of position in the furnace roof.
Claim 12
Dependent Claim
87 words
In an improved furnace roof for mounting on a supporting metal framework having a horizontally and vertically extending member assembly, an assembly of refractory blocks carried by the supporting framework, said block assembly having a seat portion extending about an inner periphery thereof and defining a feed open portion, a seating ring adapted to rest on said seat portion, an overhead housing assembly, and a refractory door operatively carried by said housing assembly for movement into and out of a seating position with respect to said ring.
Claim 13
Dependent Claim
87 words
In an improved furnace roof for mounting on a supporting metal framework having a horizontally and vertically extending member assembly, an assembly of refractory blocks carried by the supporting framework, said block assembly having a seat portion extending about an inner periphery thereof and defining a feed open portion, a seating ring adapted to rest on said seat portion, an overhead housing assembly, and a refractory door operatively carried by said housing assembly for movement into and out of a seating position with respect to said ring.
Claim 14
Dependent Claim
35 words
In an improved furnace roof as defined in claim 10, means for mounting said housing assembly on the supporting framework for movement into and out of a cooperating position with respect to said block assembly.
Claim 15
Dependent Claim
61 words
In an improved furnace roof construction as defined in claim 10, said housing assembly having a pair of cooperating telescopic door operating parts and a feed housing part, and means for moving one of said telescopic parts into a closing-off position within said feed housing part and for simultaneously moving said door into a seating position with respect to said ring.
Claim 16
Dependent Claim
41 words
In an improved furnace roof as defined in claim 12, a shaft rotatably mounting said door within said one telescopic part, and a yoke connected to said shaft for raising and lowering said one telescopic part within the other telescopic part.
Claim 17
Dependent Claim
32 words
In an improved furnace roof as defined in claim 13, said door being mounted on said shaft for rotative movement into and out of a seating position with respect to said ring.
Claim 18
Dependent Claim
23 words
In an improved furnace roof as defined in claim 10, means suspending said ring from a lower end portion of said housing assembly.
Claim 19
Dependent Claim
25 words
In an improved furnace roof as defined in claim 10, said ring being of hollow construction and having means for passing a cooling fluid therethrough.
Claim 20
Dependent Claim
67 words
In an improved furnace roof as defined in claim 10, said housing assembly comprising: a hollow substantially vertical first housing part, a hollow vertically sloped second housing part open at its lower end into said first housing part, and said refractory door being operatively carried for movement within at least one of said housing parts into and out of a seating position with respect to said ring.
Claim 21
Dependent Claim
65 words
In an improved furnace roof as defined in claim 17, said first housing part being adapted to pass charging materials therethrough into said feed open portion when said door is out of a seatiNg position with respect to said ring, and said second housing part having means for carrying and guiding said door into and out of a seating position with respect to said ring.
Claim 22
Dependent Claim
38 words
In an improved furnace roof as defined in claim 18, a hollow sleeve-like member operatively positioned for up and down guided movement within said second housing part, and means for rotatably carrying said door within said sleeve-like member.
Claim 23
Dependent Claim
39 words
In an improved furnace roof as defined in claim 19, means carried by said sleeve-like member and cooperating with said second housing part to non-rotatably guide said sleevelike member for up and down movement within said second housing part.
Claim 24
Dependent Claim
118 words
In an improved furnace roof as defined in claim 19, a shaft carried within said sleeve-like member, a metal wheel-like element rotatably carried on said shaft, said refractory door being secured on said wheel-like element and substantially defining a circular member therewith, said wheel-like element having teeth about its outer periphery, a rack extending along the inside of said second housing part for engaging said teeth and guiding said door into and out of a seating position with respect to said ring, and motor means connected to said shaft and positioned adjacent an upper end of said second housing for moving said sleeve-like member up and down therewithin and said teeth in a guided relation along said rack.
Claim 25
Dependent Claim
34 words
In an improved furnace roof as defined in claim 10, a unitary metal frame suspending said block assembly from the supporting metal framework, and means pivotally connecting said housing assembly to said unitary frame.
Claim 26
Dependent Claim
49 words
In an improved furnace roof as defined in claim 22, said means for pivotally connecting said housing assembly to said unitary frame being pin and lug means for pivoting said housing assembly with respect to said unitary frame and for disconnecting said housing with respect to said unitary frame.
Claim 27
Dependent Claim
38 words
In an improved roof as defined in claim 23, means suspending said unitary frame on the supporting framework for horizontal movement with respect to the furnace roof after said housing assembly has been disconnected from said unitary frame.
Claim 28
Dependent Claim
157 words
In an improved furnace construction for mounting on supporting framework having a horizontally and vertically extending member assembly, an assembly of refractory blocks in the form of a continuous rim wall that inwardly defines a feed opening for the furnace, a unitary metal frame engaging outer periphery reaches of said block assembly for carrying said block assembly on the support framework, door means carried by the supporting framework for movement into and out of a closing-off position with respect to the feed opening, an overhead track carried by the supporting metal framework, said unitary metal frame having a track extending therefrom, flanged wheel means extending from said unitary frame and cooperating with said overhead track and flanged wheel means mounted on a lower portion of the supporting framework to and cooperating with said extending track to carry said block assembly for direct horizontal movement on the supporting framework into and out of position in the furnace roof.
Claim 29
Dependent Claim
157 words
In an improved furnace construction for mounting on supporting framework having a horizontally and vertically extending member assembly, an assembly of refractory blocks in the form of a continuous rim wall that inwardly defines a feed opening for the furnace, a unitary metal frame engaging outer periphery reaches of said block assembly for carrying said block assembly on the support framework, door means carried by the supporting framework for movement into and out of a closing-off position with respect to the feed opening, an overhead track carried by the supporting metal framework, said unitary metal frame having a track extending therefrom, flanged wheel means extending from said unitary frame and cooperating with said overhead track and flanged wheel means mounted on a lower portion of the supporting framework to and cooperating with said extending track to carry said block assembly for direct horizontal movement on the supporting framework into and out of position in the furnace roof.
Claim 30
Dependent Claim
178 words
In an improved furnace roof construction for mounting on a supporting metal framework having a horizontally and vertically extending member assembly, an assembly of refractory blocks in the form of a continuous rim wall that inwardly define a feed opening portion for the furnace, a unitary metal frame extending from the supported metal framework and engaging outer reaches of said block assembly for carrying said assembly on the supporting framework, an overhead feed housing assembly having a seating ring carried by a lower end portion thereof and adapted to fit within the said feed opening portion, refractory door means operatively mounting within said overhead feed housing assembly for movement into and out of a seating position with said ring when said ring is positioned on said feed open portion, means for moving said unitAry frame into and out of position within the furnace roof, and means for raising said feed housing assembly and said seating ring out of position with respect to said block assembly preliminary to moving said unitary frame out of position within the furnace roof.
Claim 31
Dependent Claim
178 words
In an improved furnace roof construction for mounting on a supporting metal framework having a horizontally and vertically extending member assembly, an assembly of refractory blocks in the form of a continuous rim wall that inwardly define a feed opening portion for the furnace, a unitary metal frame extending from the supported metal framework and engaging outer reaches of said block assembly for carrying said assembly on the supporting framework, an overhead feed housing assembly having a seating ring carried by a lower end portion thereof and adapted to fit within the said feed opening portion, refractory door means operatively mounting within said overhead feed housing assembly for movement into and out of a seating position with said ring when said ring is positioned on said feed open portion, means for moving said unitAry frame into and out of position within the furnace roof, and means for raising said feed housing assembly and said seating ring out of position with respect to said block assembly preliminary to moving said unitary frame out of position within the furnace roof.
Claim 32
Dependent Claim
149 words
In an improved furnace construction for mounting on supporting framework having a horizontally and vertically extending member assembly, an assembly of refractory block carried by the support framework, said block assembly having a seating portion extending about an inner periphery portion thereof and defining a feed open portion, an overhead housing assembly, a refractory door operatively carried by said housing assembly for movement into and out of a seating position with respect to said seating portion, said housing assembly having a pair of cooperating parts one of which is a feed housing part and the other of which is a door operating part, said door operating part having a pair of telescopic portions, and said pair of telescopic portions having means for moving said door into and out of a seating position with respect to the said seating portion and for also closing-off and opening said feed housing part.
Claim 33
Dependent Claim
149 words
In an improved furnace construction for mounting on supporting framework having a horizontally and vertically extending member assembly, an assembly of refractory block carried by the support framework, said block assembly having a seating portion extending about an inner periphery portion thereof and defining a feed open portion, an overhead housing assembly, a refractory door operatively carried by said housing assembly for movement into and out of a seating position with respect to said seating portion, said housing assembly having a pair of cooperating parts one of which is a feed housing part and the other of which is a door operating part, said door operating part having a pair of telescopic portions, and said pair of telescopic portions having means for moving said door into and out of a seating position with respect to the said seating portion and for also closing-off and opening said feed housing part.
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) | 1977-07-22 | 1978-01-21 | 1978-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-22 | 1982-01-21 | 1982-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-22 | 1986-01-21 | 1986-07-23 | $7700.00 | Window Closed / Lapsed |