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公开(公告)号：US4284212A
公开(公告)日：1981-08-18
申请号：US99433
申请日：1979-12-03
申请人： Richard L. Caswell
发明人： Richard L. Caswell
CPC分类号： B67D7/36 , F16K31/402
摘要： A diaphragm valve operated by a solenoid pilot for opening and closing the gasoline passage from a pumped inlet to the nozzle of a gasoline dispenser. A valve body forms an internal fluid passage for series installation with that of the dispenser. An annular seat surrounds the body passage at an intermediate location while an upstream facing diaphragm cooperates with the seat to open and close the passage to fluid flow. A spaced apart valve plate in combination with the diaphragm form a liquid tight chamber into which gasoline at the inlet can enter through restrictive one-way orifices. Fluid pressure in the chamber aided by a bias spring urges the diaphragm toward the set in opposition to pump pressure at the inlet.The pilot valve is spring biased toward a closed relation and is loop connected from the chamber to the outlet. Energizing the pilot effects a reduction in chamber pressure enabling relatively greater inlet forces against the diaphragm to move the diaphragm toward open position. The pilot valve also operates as a backflow restrictor from the dispenser hose and in response to an overpressure opens to permit backflow to the chamber. A relief valve located internally of the chamber operates in conjunction with pilot backflow operation to relieve chamber pressure buildup to the inlet.
摘要翻译： 由电磁导阀操作的隔膜阀，用于将汽油通道从抽吸入口打开和关闭到汽油分配器的喷嘴。 阀体形成与分配器的内部流体通道串联安装。 环形座椅在中间位置处围绕身体通道，而上游侧隔膜与座椅协作以打开和关闭通道到流体流动。 与隔膜组合的间隔开的阀板形成液体密封室，入口处的汽油可以通过限制性单向孔口进入。 通过偏压弹簧辅助的腔室中的流体压力促使膜片朝着入口处抵抗入口处的泵压力。 先导阀被弹簧偏置成关闭关系，并且从腔室到出口环形连接。 通过引导来实现腔室压力的降低，从而能够使相对较大的入口力抵抗隔膜将光阑移动到打开位置。 先导阀还作为来自分配器软管的回流限制器并且响应于过压打开以允许回流到腔室。 位于腔室内部的溢流阀与先导回流操作相结合，以便减轻入口压力积聚。
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公开(公告)号：US4223807A
公开(公告)日：1980-09-23
申请号：US10294
申请日：1979-02-08
申请人： Richard L. Caswell , John A. Todd
发明人： Richard L. Caswell , John A. Todd
CPC分类号： B67D7/08
摘要： Customer dispensing of either unleaded or one of two or more grades of leaded gasoline products is selected by rotatable selector knobs located on the dispenser housing. Individual meters are operative by the leaded and unleaded dispensing systems which are hydraulically isolated from each other. The separate selector knobs are associated with each of the leaded and unleaded dispensing systems and are effective when actuated to render the other system inoperative by an imposed mechanical interlock. Bothe meters operate a common computers for calculating the transaction data of each dispensing sale.
摘要翻译： 通过位于分配器壳体上的可旋转选择旋钮选择无铅或两种或更多级别的含铅汽油产品的客户分配。 单独的仪表由通过液压隔离的有铅和无铅分配系统操作。 单独的选择器旋钮与每个有铅和无铅分配系统相关联，并且当被致动以使另一个系统由施加的机械互锁不起作用时是有效的。 Bothe仪表操作常用的计算机，用于计算每个分销销售的交易数据。
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公开(公告)号：US4147096A
公开(公告)日：1979-04-03
申请号：US802394
申请日：1977-06-01
申请人： Richard L. Caswell
发明人： Richard L. Caswell
CPC分类号： F16K24/04 , Y10T137/7848 , Y10T137/7918 , Y10T137/86324
摘要： A breather vent mountable on the vent pipe outlet from an underground storage tank at a gasoline service station site. A vent housing includes a body section adapted for placement on the vent pipe and which cooperates with a superposed cap section to accommodate a vapor floatable valve disc supported internally thereof. Vapors from the tank can normally discharge in a primary flow path past the valve disc from where it is diverted upwardly by an annular diverging deflector to atmosphere. Displaced apertures having comparatively increased protection against freezeup form an alternative outlet for a secondary flow path diverted downwardly from a location downstream of the valve disc. The latter being better protected against freezing rain, etc. enables continued vent discharge to atmosphere in the event the primary flow path becomes ice blocked.
摘要翻译： 一个通气孔可安装在汽油服务站现场的地下储罐的排气管出口上。 通风口壳体包括适于放置在通气管上的主体部分，其与重叠的盖部分配合以容纳其内部支撑的可蒸汽浮动的阀盘。 来自罐的蒸气通常可以在通过阀盘的一次流动路径中从其向上通过环形发散偏转器向大气转移的主流中。 具有相对增加的防止冻结保护的位移孔形成用于从阀盘下游的位置向下分流的二级流路的替代出口。 后者更好地防止冻雨等，使得在主流路变成冰堵塞的情况下能够持续排放到大气中。
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