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    • 2. 发明授权
    • Ammonia absorber
    • 氨吸收剂
    • US4153435A
    • 1979-05-08
    • US693148
    • 1976-06-07
    • William A. Fischer
    • William A. Fischer
    • B01D53/58G03D7/00B01D47/00
    • B01D53/58G03D7/00
    • An apparatus and method for scrubbing or removing ammonia fumes by passing the ammonia vapor through a shower of ammonia-absorbent liquid such as water in a chamber are disclosed in this invention. The ammonia vapors are absorbed by and enter into solution with the liquid, the clean air is discharged into the atmosphere, and the solution of ammonia and liquid is disposed of in an appropriate manner. Preferably, a portion of the solution is recirculated to absorb additional ammonia in the chamber while the balance is discharged; and fresh make-up liquid is added to prevent the solution from becoming fully saturated with ammonia or from losing its effectiveness in the scrubbing process. The apparatus includes a cabinet, air transfer means, a shower chamber and means for producing a dense shower of liquid droplets, liquid circulator and discharge means and control mechanism to maintain absorbent liquid within the system.
    • 在本发明中公开了一种用于通过使氨蒸气穿过诸如水中的氨吸收液体的淋浴来洗涤或除去氨气的装置和方法。 氨蒸气被液体吸收并溶解,清洁空气排放到大气中,氨和液体的溶液以适当的方式处理。 优选地,一部分溶液被再循环以吸收室中的附加氨,同时排出余量; 并加入新鲜的补充液体以防止溶液完全饱和氨或不会在洗涤过程中失去其有效性。 该装置包括机壳,空气传送装置,淋浴室和用于产生致密淋浴液滴的装置,液体循环器和排出装置以及控制机构,以将吸收液体保持在系统内。
    • 3. 发明授权
    • Two step solid state battery charger
    • 两步式固态电池充电器
    • US4031450A
    • 1977-06-21
    • US128430
    • 1971-03-26
    • Ronald O. HammelCharles N. KuykendallWilliam A. Fischer
    • Ronald O. HammelCharles N. KuykendallWilliam A. Fischer
    • H02J7/00H02J7/10
    • H02J7/0091Y10S320/22
    • Electronic circuitry for charging batteries is designed to charge the cells at a relatively high charging rate through a charging path which includes a semiconductor switching means, e.g. a transistor. Control circuitry is provided including a shunting controlled rectifier which is triggered into conduction when the battery has reached its nearly fully charged condition, thus shunting current away from the battery and preferably latching the transistor into non-conduction. A lower rate, trickle maintenance charge is provided by way of a resistor shunt across the switching means. The effect of temperature on the shunt controlled rectifier gating requirements is used in a positive manner to automatically latch the transistor into non-conduction as the cell approaches its fully charged condition while simultaneously preventing overcharging by tapering the battery voltage to a suitable level.
    • 用于为电池充电的电子电路被设计成通过包括半导体开关装置的充电路径以相对较高的充电速率对电池充电。 一个晶体管。 提供了控制电路,其包括分流可控整流器,当电池已经达到其几乎完全充电的状态时,分流可控整流器被触发导通,从而将电流分流离开电池,并且优选地将晶体管锁定为不导通。 通过跨开关装置的电阻分路提供较低速率的涓流维护电荷。 当分流器接近其完全充电状态时,温度对分流可控整流器门控要求的影响以积极的方式被使用,以便在将电池电压逐渐降低至适当水平的同时防止过充电时自动将晶体管锁定为非导通。