公开(公告)号：US3881235A

公开(公告)日：1975-05-06

申请号：US28445672

申请日：1972-08-28

Applicant: GRAENGES ESSEM AB

Inventor： SVENSTAM SVEN GUNNAR

IPC: F24D3/14 ,  F28F21/06 ,  F24H3/00

CPC classification number: F28F21/063 ,  F24D3/14 ,  Y10T29/4935

Abstract: A flight of steps, stairs and the like heated by means of a heating medium passing through a pipe located within the steps, stairs etc. The pipe is located totally within the confines of the step structure and extends in a tortuous path generally longitudinally of the flight of steps. The pipe is permanently pre-shaped so as to present interconnected, generally arcuate looped portions and can be made to conform to the step configuration substantially solely by twisting the pipe at selected regions along its length.

Abstract translation: 通过通过位于台阶，楼梯等内的管道的加热介质加热的台阶，楼梯等的飞行。管道完全位于台阶结构的范围内，并且沿着大致纵向延伸的曲折路径延伸 飞行的步骤。 管道是永久地预成形的，以便呈现相互连接的大体上弓形的环形部分，并且可以使其基本上仅通过沿其长度在选定区域处扭转管道而使其与台阶构造一致。