1
Ries Walter: Method and apparatus for cleaning surfaces or for keeping these clean.. Ries Walter, October 15, 1980: EP0017225-A1 (7 worldwide citation)

Process and device for cleaning and keeping the cleanliness of surfaces (1) either vertical or sloped exposed to heavy fouling. At the upper edge of the surface to be cleaned a cleaning fluid of low volatility, and foam controlled, having cleaning properties is applied in a thin film by means of a n ...


2
Ries Walter: Process and apparatus for manufacturing briquettes, from shredded product residues and waste products.. Ries Walter, January 2, 1985: EP0129856-A2 (6 worldwide citation)

Briquettes, especially of naturally moist biomass, should be storable and suitable for use as bio-fuel. In the apparatus which, for example, consists of at least one chopper and at least one screw press, the charged biomass is comminuted to a defined particle size. The comminuted material is intimat ...


3
Ries Walter, Rudolf Manfred: Use of waste materials in the preparation of fillers for plastics articles.. Ries Walter, September 29, 1982: EP0061147-A1 (5 worldwide citation)

Aluminium/PVC waste foils and films, in particular from the pharmaceuticals industry, are used to prepare fillers for plastic mouldings.


4
Ries Walter, Meier Gerhard: Temperature sensitive light reflector particularly ice warning device for road traffic.. Meier Hans Ulrich, Ries Walter, Meier Gerhard, July 18, 1984: EP0113350-A1 (3 worldwide citation)

A temperature sensitive light reflector is comprised of a reflecting element (4) for example a retroreflector before which there is arranged a Mauguin-type liquid crystal cell (2) located between two polarisers (1, 3). Between the cell (2) and either of the polarisers a birefringent element (5) may ...


5
Ries Walter: Use of wind and/or solar energy for cleaning surfaces, for example windows or solar collector surfaces.. Ries Walter, July 27, 1988: EP0275458-A1 (2 worldwide citation)

The available wind and/or solar energy near a vertical surface or a surface provided with a vertical element exposed to soiling by the external environment or atmosphere are used to clean or to keep cleans same, in particular window panes, especially of sky-scrapers, and solar energy collector surfa ...


6
Ries Walter: Hollow delineator post.. Ries Walter, January 28, 1981: EP0022917-A1 (1 worldwide citation)

The reflectors shaped like a band are fixed onto a support (4) which is brought by a slow movement inside the post (1), in such a way that a portion of the reflector stands freely behind each of the openings (2, 3) and the cleaning devices (10, 13) - porous cushions with a tank for the cleaning liqu ...


7
RIES WALTER: [fr] PROCEDE ET DISPOSITIFS POUR LE SECHAGE DE BOUES AQUEUSES ET PATEUSES. BRAUNSCHWEIGISCHE MASCH BAU, May 18, 1979: FR2406789-A1

[fr] L'invention concerne le traitement des boues résiduaires. Elle a pour objet un procédé de séchage de boues, selon lequel les boues, placées sur un fond tamisant 10 rotatif, sont soumises alternativement à un brassage par des outils 13 en forme de racloirs et à une compression par des outils 12 ...


8
Ries Walter: Poteau de balisage de routes. Odenwalder Kunststoffwerke, October 12, 1979: FR2419999-A1

L'invention concerne un poteau de balisage de routes. Poteau caractérisé en ce qu'il comporte un corps d'écoulement poreux 5, perméable aux liquides, qui recouvre la sortie de liquide 17, 18 et qui arrive librement à l'extérieur au moins jusqu'au plan vertical de la surface visible 13, 14 du réflect ...


9
Ries Walter: Use of wind and/or solar energy for cleaning surfaces or keeping same clean, for example windows or solar energy collector surfaces. Ries Walter, PÄTZOLD Herbert, June 16, 1988: WO/1988/004151

The available wind and/or solar energy near a vertical surface or a surface provided with a vertical element exposed to soiling by the external environment or atmosphere are used to clean or to keep cleans same, in particular window panes, especially of sky-scrapers, and solar energy collector surfa ...



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