Electric heating coil
US4554441A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 19, 1985 |
| Grant date | Nov 19, 1985 |
| Priority date | — |
| Expiry date | Feb 19, 2005 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF27D2099/0008
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A delivery system is provided for use in conjunction with the metalurgical furnace of the type having an elongated furnace chamber with an access door at one end for delivering a coffin containing parts into the interior of the furnace chamber. The delivery system comprises a plurality of rollers which are secured to the bottom of the furnace chamber so that axes of the rollers extend transversely with respect to the axis of the furnace chamber. In use, the rollers frictionally engage the bottom of the coffin and guide the coffin into the furnace chamber. Preferably, the coffin includes upwardly extending channels on its bottom, and which the rollers are positioned.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.