Description
DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE (combustion apparatus F23)
F27D
Technology
Stats
- 2,950 US PATENTS IN FORCE
- 1,108 US APPLICATIONS PENDING
- 2,645 Total Patent Owners
- 13,501 TOTAL INVENTORS
Subclasses
| Subclass | Title |
|---|---|
| 1/00 | Casings; Linings; Walls; Roofs (refractory materials C04B; firebridges for combustion chambers F23M 3/00) |
| 1/02 | Casings; Linings; Walls; Roofs (refractory materials C04B; firebridges for combustion chambers F23M 3/00) Crowns; Roofs |
| 1/04 | Casings; Linings; Walls; Roofs (refractory materials C04B; firebridges for combustion chambers F23M 3/00) characterised by the form of the bricks or blocks used |
| 1/06 | Casings; Linings; Walls; Roofs (refractory materials C04B; firebridges for combustion chambers F23M 3/00) characterised by the form of the bricks or blocks used Composite bricks or blocks |
| 1/08 | Casings; Linings; Walls; Roofs (refractory materials C04B; firebridges for combustion chambers F23M 3/00) characterised by the form of the bricks or blocks used Composite bricks or blocks Bricks or blocks with internal reinforcement or metal backing |
| 1/10 | Casings; Linings; Walls; Roofs (refractory materials C04B; firebridges for combustion chambers F23M 3/00) Monolithic linings; Supports therefor |
| 1/12 | Casings; Linings; Walls; Roofs (refractory materials C04B; firebridges for combustion chambers F23M 3/00) incorporating cooling arrangements (constructions of tube assemblies in general F28) |
| 1/14 | Casings; Linings; Walls; Roofs (refractory materials C04B; firebridges for combustion chambers F23M 3/00) Supports for linings (F27D 1/1 takes precedence) |
| 1/16 | Casings; Linings; Walls; Roofs (refractory materials C04B; firebridges for combustion chambers F23M 3/00) Making or repairing linings |
| 1/18 | Casings; Linings; Walls; Roofs (refractory materials C04B; firebridges for combustion chambers F23M 3/00) Door frames; Doors, lids, removable covers |
| 3/00 | Charging; Discharging; Manipulation of charge (conveying systems characterised by their application for specified purposes not otherwise provided for B65G 49/00; moving charge through a furnace F27B 9/14) |
| 3/02 | Charging; Discharging; Manipulation of charge (conveying systems characterised by their application for specified purposes not otherwise provided for B65G 49/00; moving charge through a furnace F27B 9/14) Skids or tracks for heavy objects |
| 3/04 | Charging; Discharging; Manipulation of charge (conveying systems characterised by their application for specified purposes not otherwise provided for B65G 49/00; moving charge through a furnace F27B 9/14) Ram or pusher apparatus |
| 3/06 | Charging; Discharging; Manipulation of charge (conveying systems characterised by their application for specified purposes not otherwise provided for B65G 49/00; moving charge through a furnace F27B 9/14) Charging or discharging machines on travelling carriages |
| 3/08 | Charging; Discharging; Manipulation of charge (conveying systems characterised by their application for specified purposes not otherwise provided for B65G 49/00; moving charge through a furnace F27B 9/14) Screw feeders; Screw dischargers |
| 3/10 | Charging; Discharging; Manipulation of charge (conveying systems characterised by their application for specified purposes not otherwise provided for B65G 49/00; moving charge through a furnace F27B 9/14) Charging directly from hoppers or shoots |
| 3/12 | Charging; Discharging; Manipulation of charge (conveying systems characterised by their application for specified purposes not otherwise provided for B65G 49/00; moving charge through a furnace F27B 9/14) Travelling or movable supports or containers for the charge |
| 3/14 | Charging; Discharging; Manipulation of charge (conveying systems characterised by their application for specified purposes not otherwise provided for B65G 49/00; moving charge through a furnace F27B 9/14) Charging or discharging liquid or molten material |
| 3/15 | Charging; Discharging; Manipulation of charge (conveying systems characterised by their application for specified purposes not otherwise provided for B65G 49/00; moving charge through a furnace F27B 9/14) Tapping equipment; Equipment for removing slag |
| 3/16 | Charging; Discharging; Manipulation of charge (conveying systems characterised by their application for specified purposes not otherwise provided for B65G 49/00; moving charge through a furnace F27B 9/14) Introducing a fluid jet or current into the charge (F27D 3/18 takes precedence) |
Recent Patents
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Recent Publications
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Top Owners in This Class
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Applications Filed in This Class - By Year
Patents Issued To Date - By Filing Year
Average Time to Issuance
- 37 Months (last 2 years Issuances)
- 37 Months (last 5 years Issuances)