专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06241888B1 Method of controlling the phosphorus concentration in biological wastewater purification plants 失效
标题翻译：控制生物污水净化厂磷浓度的方法
公开(公告)号：US06241888B1
公开(公告)日：2001-06-05
申请号：US09037334
申请日：1998-03-10
申请人： Friedrich Engel
发明人： Friedrich Engel
IPC分类号： C02F900
CPC分类号： C02F3/006 , C02F3/12 , C02F2209/18 , Y02W10/15 , Y10S210/906
摘要： The invention relates to a method of controlling a biological wastewater purification plant, in which the wastewater is aerated in an activation tank in the presence of an activated sludge and, to influence the properties of the activated sludge, phosphorus is added under controlled concentration, which comprises measuring the phosphorus concentration in the activated sludge for the control of the phosphorus addition and controlling the phosphorus addition in such a manner that the phosphorus concentration in the activated sludge is greater than or equal to a lower limit and is less than or equal to an upper limit. By means of the method according to the invention, the effluent values of a biological wastewater purification plant can be optimized and the limit values in the effluent of a wastewater purification plant prescribed by the authorities can be complied with better than hitherto.
摘要翻译：本发明涉及一种控制生物废水净化装置的方法，其中废水在活性污泥存在下在活化槽中充气，并且为了影响活性污泥的性质，在受控浓度下加入磷，其中包括测量活性污泥中的磷浓度以控制磷添加并控制磷添加，使得活性污泥中的磷浓度大于或等于下限，并且小于或等于上限通过本发明的方法，可以优化生物废水净化装置的废水排放值，当局规定的废水净化装置污水的极限值可以比现在更好。

2. 发明授权

US4541587A Hub for magnetic tape cassettes, especially compact cassettes, and magnetic tape cassette possessing one or more such hubs 失效
标题翻译：用于磁带盒，特别是小型盒式磁带的集线器和具有一个或多个这种集线器的磁带盒
公开(公告)号：US4541587A
公开(公告)日：1985-09-17
申请号：US599525
申请日：1984-04-12
申请人： Werner Stumpfi , Gunter Bettinger , Friedrich Engel , Horst Fitterer , Norbert Kreimes , Dietmar Pfefferkorn , Norbert Schaffer , Kurt Schmidts
发明人： Werner Stumpfi , Gunter Bettinger , Friedrich Engel , Horst Fitterer , Norbert Kreimes , Dietmar Pfefferkorn , Norbert Schaffer , Kurt Schmidts
IPC分类号： G11B23/04 , G03B1/04 , G11B15/32
CPC分类号： G11B23/044
摘要： The invention relates to a hub for magnetic tape cassettes, especially compact cassettes, and to magnetic tape cassettes possessing such hubs. In a first embodiment, spring means are provided on the inner periphery of the hub and exert radial pressures on the drive spindle, the spring means consisting, for example, of sprung teeth. In a further embodiment, the teeth have a spring rate of from about 1 P/mm to 40 P/mm. In another embodiment, the hub consists of an inner part and an outer part which can be coupled to one another and between which there is some play after coupling. A large number of specific examples of hubs are given to show possible shapes and arrangements of the teeth, and to show the types of material that can be used. In an advantageous embodiment, the inner part of the two-part hub can also be made a part of the drive spindle on the recorder, which inner part can be coupled with the outer part when the drive spindle enters the cassette.
摘要翻译：本发明涉及一种用于磁带盒，特别是小型盒式磁带的集线器以及具有这种集线器的磁带盒。在第一实施例中，弹簧装置设置在轮毂的内周上并在驱动轴上施加径向压力，弹簧装置例如由弹簧齿组成。在另一个实施例中，齿具有约1P / mm至40P / mm的弹簧刚度。在另一个实施例中，轮毂由内部部分和外部部分组成，该部分和外部部分可以彼此连接，并且在连接之后有一些间隙。轮毂的大量具体示例被给出以示出齿的可能形状和布置，并且示出可以使用的材料的类型。在有利的实施例中，两部分轮毂的内部部分也可以被制成记录器上的驱动主轴的一部分，当驱动主轴进入盒时，该内部部分可以与外部部分联接。

3. 发明授权

US4515331A Hub for magnetic tape cassettes, especially compact cassettes, and magnetic tape cassette possessing one or more such hubs 失效
公开(公告)号：US4515331A
公开(公告)日：1985-05-07
申请号：US316072
申请日：1981-10-28
申请人： Werner Stumpfi , Gunter Bettinger , Friedrich Engel , Horst Fitterer , Norbert Kreimes , Dietmar Pfefferkorn , Norbert Schaffer , Kurt Schmidts
发明人： Werner Stumpfi , Gunter Bettinger , Friedrich Engel , Horst Fitterer , Norbert Kreimes , Dietmar Pfefferkorn , Norbert Schaffer , Kurt Schmidts
IPC分类号： G11B23/04
CPC分类号： G11B23/044
摘要： The invention relates to a hub for magnetic tape cassettes, especially compact cassettes, and to magnetic tape cassettes possessing such hubs. In a first embodiment, spring means are provided on the inner periphery of the hub and exert radial pressures on the drive spindle, the spring means consisting, for example, of sprung teeth. In a further embodiment, the teeth have a spring rate of from about 1 P/mm to 40 P/mm. In another embodiment, the hub consists of an inner part and an outer part which can be coupled to one another and between which there is some play after coupling. A large number of specific examples of hubs are given to show possible shapes and arrangements of the teeth, and to show the types of material that can be used. In an advantageous embodiment, the inner part of the two-part hub can also be made a part of the drive spindle on the recorder, which inner part can be coupled with the outer part when the drive spindle enters the cassette.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式