Hoechst Aktiengesellschaft

Erwin Gross

Hans Vowinkel

A device for the transmission of solar energy to a liquid medium is composed of a platelike, flat hollow piece made from a plastics material and being provided with tubular flow channels, which is mounted in a flat-bottomed box under a translucent covering while being insulated.

Device for the transmission of solar energy to a liquid medium

Multi-layer radiator of plastic material consisting of planar elements comprising an array of vertical water pipes horizontal collecting channels, wherein the planar elements are first connected by straps fastened in the readily accessible border zones of the elements to form units which are then welded together at their end-faces. The radiator can be produced with a few operating steps and the manufacturing costs are considerably reduced.

Multi-layer radiator of plastic material and process for its manufacture

A multi-element radiator of plastic material wherein the elements are closed of a plurality of vertical water pipes which discharge at their upper and lower ends into cylindrical tube sections and the end-faces of adjacent tube sections are connected to form the upper and lower horizontal collecting channels.

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Burgsolms, undefined

Erwin Gross