Patent US3827633A successfully refreshed from Google Patents.
US3827633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mobile device for repairing furnace walls and the like
Assignee: Krosaki Harima Corp
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Filing: 1973-08-21
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Granted: 1974-08-06
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Expires: 1993-08-21
Abstract
Abstract A mobile device for repairing furnace walls includes a mobile unit on which telescopically disposed conduit means are mounted. A nozzle is mounted on the conduit means such that refractory material fed through the conduit means is discharged from the nozzle for deposit on the furnace walls. Supporting means are provided for supporting the conduit means on the mobile unit and for controlling the location and position of the nozzle whereby the conduit means may be operated from a remote position to control the location and direction of discharge of refractory material from the nozzle and provide for depositing the refractory material on the furnace wall with a minimum of waste.
Inventors
- 👤 H Kouno
- 👤 S Kubo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:41
CPC Classifications
C; C21; C21B; C21B7/00; C21B7/04; C21B7/06; B; B05; B05B; B05B15/00; B05B15/60; B05B15/68; C21C; C21C5/00; C21C5/28; C21C5/42; C21C5/44; C21C5/441; C21C5/443
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
144 words
A mobile apparatus for repairing furnace walls comprising, a mobile truck, a main pipe means, support means supporting said main pipe means on said truck and operable to control the position of said main pipe, conduit means disposed in said main pipe means, said conduit means comprising at least two telescopically disposed conduits, forwarding means operably engaging said conduit means for longitudinally extending and retracting said telescopically disposed conduits, said conduit means including cooling means introducing a cooling fluid to effect cooling of said conduit means, a nozzle mounted on an innermost conduit of said telescopically disposed conduits for spraying refractory material on said furnace wall, a hose means connected to said innermost conduit for conveying refractory material thereto, and a fluid hose means to facilitate spraying of said refractory material as the latter passes through said innermost conduit for discharge from said nozzle.
Claim 2
Dependent Claim
144 words
A mobile apparatus for repairing furnace walls comprising, a mobile truck, a main pipe means, support means supporting said main pipe means on said truck and operable to control the position of said main pipe, conduit means disposed in said main pipe means, said conduit means comprising at least two telescopically disposed conduits, forwarding means operably engaging said conduit means for longitudinally extending and retracting said telescopically disposed conduits, said conduit means including cooling means introducing a cooling fluid to effect cooling of said conduit means, a nozzle mounted on an innermost conduit of said telescopically disposed conduits for spraying refractory material on said furnace wall, a hose means connected to said innermost conduit for conveying refractory material thereto, and a fluid hose means to facilitate spraying of said refractory material as the latter passes through said innermost conduit for discharge from said nozzle.
Claim 3
Dependent Claim
91 words
A mobile apparatus according to claim 1 wherein said support means comprises a turn table rotatable about a generally vertical axis and providing for rotation of said main pipe and conduit means about said vertical axis, said support means also comprising rotating means for effecting rotation of said main pipe about its longitudinal axis, said support mEans further comprising inclination means for pivoting said main pipe and conduit means about a generally horizontal axis to provide for disposing said main pipe and conduit means at an inclined angle relative to horizontal.
Claim 4
Dependent Claim
51 words
A mobile apparatus according to claim 1 wherein said cooling means includes a double wall structure on one of said telescopically disposed conduits, said double wall structure defining an inner passage, means for introducing a cooling fluid to said inner passage, and means for conducting cooling fluid from said inner passage.
Claim 5
Dependent Claim
80 words
A mobile apparatus according to claim 1 wherein said support means comprises a first means for effecting vertical displacement of said main pipe and second means for effecting horizontal displacement of said main pipe, said first means including a screw-operated elevating frame, said second means including a screw-operated lateral frame, one of said first and second means including a rotary ring through which said main pipe passes, and means for effecting rotation of said rotary ring and said main pipe.
Claim 6
Dependent Claim
29 words
A mobile apparatus according to claim 1 wherein said fluid hose means comprises a fluid hose extending within and opening into said innermost conduit of said telescopically disposed conduits.
Claim 7
Dependent Claim
42 words
A mobile apparatus according to claim 1 wherein said fluid hose means comprises a fluid hose extending outside of said conduit means, said fluid hose having an end portion connected to and in communicating with the innermost of said telescopically disposed conduits.
Claim 8
Dependent Claim
51 words
A mobile apparatus according to claim 1 wherein said fluid hose means comprises a fluid hose extending outside of said innermost conduit but within the outermost of said telescopically disposed conduits, said fluid hose having an end portion connected to and in communicating with the innermost of said telescopically disposed conduits.
Claim 9
Dependent Claim
34 words
A mobile apparatus according to claim 1 wherein said fluid hose means includes a fluid hose for introducing water into said innermost conduit to thereby provide a dry method for spraying said refractory material.
Claim 10
Dependent Claim
34 words
A mobile apparatus according to claim 1 wherein said fluid hose means includes a fluid hose for introducing air into said innermost conduit to thereby provide a wet method for spraying said refractory material.
Claim 11
Dependent Claim
25 words
A mobile apparatus according to claim 1 wherein said conduit means includes rollers between said telescopically disposed conduits to facilitate relative longitudinal extension and retraction.
Claim 12
Dependent Claim
61 words
A mobile apparatus according to claim 1 including a refractory hose for said refractory material, means connecting said refractory hose to said innermost conduit, said forwarding means including rollers engaging said refractory hose to effect longitudinal movement of the latter, and rollers between said telescopically disposed conduits to provide a rolling action therebetween during extension and retraction of said conduit means.
Claim 13
Dependent Claim
25 words
A mobile apparatus according to claim 1 wherein said conduit means includes three telescopically disposed conduits each longitudinally extendable and retractable relative to each other.
Claim 14
Dependent Claim
22 words
A mobile apparatus according to claim 12 wherein said cooling means introduces said cooling fluid to the outermost of said three conduits.
Claim 15
Dependent Claim
43 words
A mobile apparatus according to claim 1 wherein said forwarding means includes a rack formed on said innermost of said telescopically disposed conduits, and a pinion mounted on said support means and engaging said rack for longitudinally extending and retracting said conduit means.
Claim 16
Dependent Claim
23 words
A mobile apparatus according to claim 14 including brake projections on said conduit means to limit the maximum extension of said conduit means.
Claim 17
Dependent Claim
35 words
A mobile apparatus according to claim 1 wherein said forwarding means includes spaced rollers located about respective telescopically disposed conduits, and means for driving said rollers to effect longitudinal displacement of said telescopically disposed conduits.
Claim 18
Dependent Claim
33 words
A mobile apparatuS according to claim 1 including a mixing vessel for said refractory material, and a refractory hose extending between said mixing vessel and said innermost conduit of said telescopically disposed conduits.
Claim 19
Dependent Claim
17 words
A mobile apparatus according to claim 17 wherein said mixing vessel is mounted on said mobile truck.
Claim 20
Dependent Claim
26 words
A mobile apparatus according to claim 1 including operating means for controlling the operation of the travelling spray gun said operating means including a pendant switch.
Claim 21
Dependent Claim
27 words
A mobile apparatus according to claim 1 including a shield mounted on said mobile truck for shielding said spray gun apparatus against heat from said furnace walls.
References Cited (Backward Citations)
US3130077A
Cited
US3747853A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-05 | 1978-02-04 | 1978-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-05 | 1982-02-04 | 1982-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-05 | 1986-02-04 | 1986-08-06 | $7700.00 | Window Closed / Lapsed |