| 摘要 |
671,850. Electric room heaters. SANDOR,. F. M. A., (Representative of SANDOR, N.). Nov. 6, 1950 [Nov. 7, 1949], No. 28496/49. Class 39(iii) A heating device for rooms comprises an electric heating element 1 embedded in resilient heat-conducting material supported on a non-porous heat insulating board 2, e.g. of kapok or asbestos, having marginal flanges 2a on its under surface to provide air pockets between the board and the floor, a loosely woven textile material. 3 covering the device. The element 1 comprises wire coils or mesh encased in a flexible plastic covering. The flanges 2a may be of rubber, and intermediate flanges 2b may be provided. |
