Patents Assigned to Rational GmbH
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Patent number: 6076518Abstract: A steam generator has a steam boiler, a burner shaft for receiving hot exhaust gasses from a burner extending into the steam boiler, at least one heat exchanger section with one or more channels extending through the boiler for conducting exhaust gasses from the burner shaft through the heat exchanger to an exhaust system. The connection between the burner shaft and the channels of the heat exchanger is by an opening in the sidewall of the burner shaft, which is partially closed by a slidable insert that allows adjusting the size of the opening. The insert can be hollow and can have an opening spaced from the opening in the sidewall to allow bypassing some exhaust gasses to a point in the channels downstream from the opening in the sidewall.Type: GrantFiled: February 27, 1998Date of Patent: June 20, 2000Assignee: Rational GmbHInventors: Jaroslav Klouda, Maarten Joannes Botman
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Patent number: 5915372Abstract: A heat exchanger for a cooking chamber extends around a ventilator fan of the cooking chamber and has a burner tube connected to one end of a first portion of the heat exchanger and has a reverse bend so a second portion extends parallel to the first portion in the opposite direction. The tube is mounted by the burner and the opposite end so that the reverse bends allows for compensation of thermal expansion in the tube during a heating process.Type: GrantFiled: January 29, 1998Date of Patent: June 29, 1999Assignee: Rational GmbHInventors: Peter Wiedemann, Franz Koch, Gerd Gumienny
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Patent number: 5842409Abstract: A support assembly for holding a chicken or the like for cooking, comprising a support member 11 arranged to extend into the body cavity of the chicken through the posterior end of the chicken cut away during butchering and lie against the backbone region 35. A trussing member 15 extends from the support member 11 at a position proximal to where the posterior end of the chicken locates, and provides a surface on which the drumsticks/legs of the chicken may locate in crossed configuration. At the end of the trussing member 15, located away from the support member 11 is a second support member 19 which is also arranged to extend into the body cavity of the chicken through the posterior end of the chicken cut away during butchering and lie against the keel region 33. The support assembly may be provided with fittings to allow retrofitting to existing cooking trays, or may be welded directly to purpose built racks.Type: GrantFiled: January 23, 1997Date of Patent: December 1, 1998Assignee: Rational GmbHInventors: Erhard Loffler, Daulton Baker
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Patent number: 5462404Abstract: An arrangement for an air supply in a radial fan or blower comprising an air guide arrangement disposed in the intake region of the fan or blower. The air guide arrangement comprises at least two baffle regions lying diametrically opposite one another and symmetrically relative to one another with respect to a plane of symmetry of the intake region that contains the rotational axis of the fan or blower, the edges of the air baffle regions neighboring the fan lying within the aperture clearance of the fan and the air baffle regions extending obliquely outward from these edges in relationship to the plane of symmetry of the intake region.Type: GrantFiled: April 18, 1994Date of Patent: October 31, 1995Assignee: Rational GmbHInventor: Wilfried Durth
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Patent number: 5370498Abstract: An apparatus for eliminating gas constituents, such as moisture or the like, from a cooking space of an industrial kitchen apparatus or the like, has a radial fan which is arranged close to an essentially vertically housing wall, the drive shaft of the radial fan penetrating the housing wall, and the housing wall having a housing opening close to the circumference of the radial fan with a partition provided close to the circumference of the radial fan for deflecting a part of the flow generated by the fan into the housing opening.Type: GrantFiled: March 4, 1993Date of Patent: December 6, 1994Assignee: Rational GmbHInventor: Armin Klingler
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Patent number: D401167Type: GrantFiled: June 11, 1997Date of Patent: November 17, 1998Assignee: Rational GmbHInventor: Siegfried Meister