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1. 发明授权

US4113469A Refining molten metal 失效
标题翻译：精炼金属
公开(公告)号：US4113469A
公开(公告)日：1978-09-12
申请号：US792602
申请日：1977-05-02
申请人： Hugh W. Grenfell , David J. Bowen , Robert Baker
发明人： Hugh W. Grenfell , David J. Bowen , Robert Baker
IPC分类号： C21C7/072 , C21C5/00 , C21C5/30 , C21C5/46 , C21C7/068
CPC分类号： C21C5/30 , C21C5/005 , C21C7/0685 , C21C2005/468
摘要： A method is provided for refining molten metal containing an impurity which is oxidizable in preference to one or more selected constituent elements of the metal and which forms a gaseous oxide, the method comprising injecting oxygen and a diluent gas into the molten metal contained in a vessel so as to reduce the proportion of the impurity in the metal by evolution as the gaseous oxide, weighing the vessel during refining to establish a point at which the weight of the vessel contents changes significantly due to preferential oxidation of the one or more selected constituent elements, initiating at the point a reduction in the ratio of oxygen: diluent gas to as to reduce the rate of oxidation of the one or more selected constituent elements relative to the impurity and continuing injection until the proportion of the impurity is reduced to the desired level.

2. 发明授权

US5242356A Exercise and toning apparatus 失效
标题翻译：锻炼和托运设备
公开(公告)号：US5242356A
公开(公告)日：1993-09-07
申请号：US809549
申请日：1992-01-28
申请人： Hugh W. Grenfell
发明人： Hugh W. Grenfell
IPC分类号： A63B23/00 , A61H1/02
CPC分类号： A61H1/0292 , A61H2203/0431 , A63B22/16 , A63B22/18 , A63B2208/0233
摘要： An apparatus for exercising and/or toning the muscles of the waist, hips and thighs of a user, comprises an e.g. circular support (1) for the user to sit upon, the support (1) resting at its center on a mount (2) which enables the support to tilt in selected radial directions relative to a vertical axis. The support (1) may be arranged so that its periphery rests on a base (3) and the point of contact between the support (1) and a base (3) moves in a circle around the base as the user causes the direction of tilt to progress around in a circle by a circular movement of the hips. In a modified apparatus a drive means is provided to cause the direction of tilt of the support to progress around in a circle.
摘要翻译： PCT No.PCT / GB90 / 00865 Sec。 371日期1992年1月28日 102（e）日期1992年1月28日PCT Filed 1990年6月4日PCT公布。出版物WO90 / 14865 日期1990年12月13日。用于锻炼和/或调节使用者的腰部，臀部和大腿肌肉的装置包括例如。环形支撑件（1），用于使用者坐在上方，支撑件（1）在其中心处搁置在支架（2）上，支撑件能够相对于竖直轴线在选定的径向上倾斜。支撑件（1）可以被布置成使得其周边搁置在基部（3）上，并且当使用者引起方向时，支撑件（1）和基座（3）之间的接触点以围绕基部的圆周移动倾斜通过臀部的圆周运动在圆周中前进。在改进的装置中，提供驱动装置以使得支撑件的倾斜方向在圆周中前进。

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