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    • 5. 发明专利
    • SIDE STREAM MONITORING
    • CA1102583A
    • 1981-06-09
    • CA303004
    • 1978-05-10
    • EXXON RESEARCH ENGINEERING CO
    • YOUNG DALE A
    • B01D15/00B01D17/04B01D29/25B01D29/37B01D35/00B01D35/147B01D35/22B01J35/00C10G31/09G01N1/10G01N1/20G01N33/28G01N33/22
    • U.S. 818,154 A site stream monitoring device for a main unit such as a vessel, which effectively has the same geometrical and dynamic characteristics as those corresponding components in the vessel for enabling the side stream monitor to provide a ready indication ant continuous monitor of the performance characteristics and quality of the corresponding components in the vessel, upon removal and testing or examination of the device. The apparatus and method for monitoring have particular utility in connection with clay filters or filter separators which are used for the removal of contaminants from e.g. jet fuels. In each case a bypass side stream is disposed between the inlet lines of the filter or filter separator and located within the bypass line is a device which effectively is a reduced scale replica of a portion of the main unit which corresponds to the critical operating components thereof. For the clay filter a duplication of flow velocities and residence times of the fuel through a predetermined section of one of the main filter elements is reproduced. In the case of the filter separator, the side stream device comprises sections which are comprised of identical elements used in the main unit, including metal screens, fiber sheets, fiberglass screens, fiber sheets, fiberglass screens, etc., except that each component of the side stream monitor is of a reduced size ouch that the ratio of the cross-sectional area to the liquid flow is the same as that which exists in the main unit for that particular component.
    • 7. 发明专利
    • MAGNETICALLY LATCHED VAPOR RECOVERY GASOLINE DISPENSING NOZZLE
    • CA1095475A
    • 1981-02-10
    • CA309271
    • 1978-08-14
    • EXXON RESEARCH ENGINEERING CO
    • YOUNG DALE A
    • B67D7/54B65B3/00
    • A gasoline dispensing nozzle which includes vapor recovery means and is magnetically held in place to the fueling filler neck of the vehicle, while at the same time providing for a tight seal at the nozzle filler neck interface. This permits the recovery of gasoline vapors issuing from the vehicle fuel tank during the refueling process. At the filler end of the nozzle there is a switchable permanent magnet to latch, support and hold the nozzle to the vehicle fillpipe. When turned on, the magnet will direct its magnetic flux through the object to which the nozzle is held, that is, the filler neck surface with which the nozzle is in contact. To remove the nozzle when refueling is completed, the magnetic flux is switched in a different direction to a metal element known as a keeper. This releases the magnetic force of attraction and unlocks the nozzle, thus permitting its removal from the fillpipe. The switching can be accomplished either electrically or mechanical ly. A pressure sensing mechanism is provided at the outer face of the magnet so that when a suitable seal is made between the nozzle magnet and the filler neck surface, a signal is provided via the pressure sensor that the seal has been made. Then the fuel valve may be opened on demand or automatically closed when there is a loss of pressure signal (i.e., the seal is broken), whereupon flow is not permitted. The nozzle is designed to have a forward portion which is swiveled or pivoted about an axis on the rear portion of the nozzle. This forward portion or torque arm is relatively short in length and provides a minimum amount of moment arm with respect to the axis so that minimum peel forces are generated by the weight of nozzle and hoses which permits smaller size magnets to be utilized.