1
Hartmut Stiegler: Muffle oven for heating foodstuffs. Buderus Aktiengesellschaft, Karl F Ross, Herbert Dubno, April 23, 1985: US04512327 (11 worldwide citation)

A muffle oven for the heating of foodstuffs has a closed housing with a treatment chamber separated by a perforated partition from an air-circulating compartment which forms rear and lateral air spaces surrounding that chamber on three sides. A radial blower, driven by an external motor located at a ...


2
Hartmut Stiegler, Albert Blum: Trim compensation for a hovercraft. David R Syrowik, June 4, 1996: US05522470 (9 worldwide citation)

Trim compensation for a hovercraft having two engines (2,3) with flow outlet apertures. The two engines (2,3) are arranged laterally at the stern of the hovercraft to generate air jets for forward motion. The hovercraft also includes a compressor to generate an air cushion beneath the hovercraft. Th ...


3
Burno Heinzl, Herbert Frowein, Hartmut Stiegler, Joachim Wurz, Horst Schmidt, Willi Huttel, Karl Heinz Schmitz: Manufacture of tray holder from single molded article. Buderus Aktiengesellschaft, Karl F Ross, Herbert Dubno, October 14, 1986: US04616754 (7 worldwide citation)

An article for mixing a tray holder has a generally rectangular side panel having upper and lower edges and inner and outer faces, a generally rectangular roof panel projecting generally perpendicular from the inner face of the side panel along the upper edge thereof, and a generally rectangular flo ...


4
Hartmut Stiegler, Albert Blum: Steering gear for a hovercraft. Brooks & Kushman, May 28, 1996: US05520260 (2 worldwide citation)

A steering device for a hovercraft having two driving engines (2, 3), a back skirt (5), a finger skirt (6) and a jet deflection device located downstream of the two driving engines (2, 3). The jet deflection device includes a negative Vee stream deflector (7) and rudder elements (11, 12) which can b ...


5
Hartmut Stiegler, Hartmut Blum: Static trimmer for a hovercraft. Brooks & Kushman, May 28, 1996: US05520261

A static trimmer for a hovercraft is provided for shifting the center of buoyancy of an air-cushion of the hovercraft in relation to the center of gravity. The static trimmer includes a peripheral elastic skirt (2) having a plurality of skirt segments (5) each having a back skirt (3) and a finger sk ...



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