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1. 发明授权

US5121777A Vapor recovery nozzles and sub-assemblies therefor 失效
标题翻译：蒸汽回收喷嘴及其组件
公开(公告)号：US5121777A
公开(公告)日：1992-06-16
申请号：US430713
申请日：1989-11-01
申请人： Donald L. Leininger , Robert W. Guertin , Bruce P. Baker
发明人： Donald L. Leininger , Robert W. Guertin , Bruce P. Baker
IPC分类号： B67D7/42 , B67D7/46 , B67D7/54
CPC分类号： B67D7/42 , B67D7/46 , B67D7/54 , B67D2007/545
摘要： A vapor recovery nozzle, employed in minimizing atmospheric pollution by fuel vapors is described. The nozzle comprises a bellows which is compressed against the fill pipe of a vehicle fuel tank during discharge of fuel therein. The bellows surrounds a nozzle spout to define a vapor return flow path which extends through a nozzle body. The body of the nozzle is compositely formed by a body member and a vapor path cap which compositely define the vapor return flow passage. Flow of fuel is controlled by a control valve which may be opened, or maintained opened, by an operating lever only when a trip mechanism stem is latched in an operative position. A mechanical interlock prevents latching of the trip mechanism stem unless the bellows is compressed in sealing engagement with a fill pipe. When the bellows is so compressed, the trip stem is latched. If the level of fuel in the fill pipe covers the end of the spout, vacuum actuated means unlatch the trip mechanism stem. If the pressure in the vapor return flow path rises to a level indicating a blockage in return flow, the trip stem is also unlatched. A vapor valve is provided in the bellows to prevent the escape of fuel vapors when the nozzle is in a rest position. Angular relationships of the bellows and the spout facilitate obtaining a seal with a fill pipe. A groove is formed in the spout outwardly of and adjacent the vapor seal so that the vapor seal maintains its integrity in the event the spout is broken when inserted in a fill pipe. A trip mechanism sub-assembly, a spout sub-assembly and a bellows sub-assembly facilitate rebuilding, as well as the original assembly, of the nozzle.

2. 发明授权

US5655576A Vapor recovery nozzles and sub-assemblies therefor 失效
标题翻译：蒸气回收喷嘴及其组件
公开(公告)号：US5655576A
公开(公告)日：1997-08-12
申请号：US453012
申请日：1995-05-30
申请人： Donald L. Leininger , Robert W. Guertin , Bruce P. Baker
发明人： Donald L. Leininger , Robert W. Guertin , Bruce P. Baker
IPC分类号： B67D7/42 , B67D7/46 , B67D7/54 , B67D5/00
CPC分类号： B67D7/42 , B67D7/46 , B67D7/54 , B67D2007/545
摘要： A vapor recovery nozzle, employed in minimizing atmospheric pollution by fuel vapors is described. The nozzle comprises a bellows which is compressed against the fill pipe of a vehicle fuel tank during discharge of fuel therein. The bellows surrounds a nozzle spout to define a vapor return flow path which extends through a nozzle body. The body of the nozzle is compositely formed by a body member and a vapor path cap which compositely define the vapor return flow passage. Flow of fuel is controlled by a control valve which may be opened, or maintained opened, by an operating lever only when a trip mechanism stem is latched in an operative position. A mechanical interlock prevents latching of the trip mechanism stem unless the bellows is compressed in sealing engagement with a fill pipe. When the bellows is so compressed, the trip stem is latched. If the level of fuel in the fill pipe covers the end of the spout, vacuum actuated means unlatch the trip mechanism stem. If the pressure in the vapor return flow path rises to a level indicating a blockage in return flow, the trip stem is also unlatched. A vapor valve is provided in the bellows to prevent the escape of fuel vapors when the nozzle is in a rest position. Angular relationships of the bellows and the spout facilitate obtaining a seal with a fill pipe. A groove is formed in the spout outwardly of and adjacent the vapor seal so that the vapor seal maintains its integrity in the event the spout is broken when inserted in a fill pipe. A trip mechanism sub-assembly, a spout sub-assembly and a bellows sub-assembly facilitate rebuilding, as well as the original assembly, of the nozzle.
摘要翻译：描述了用于使燃料蒸气中的大气污染最小化的蒸气回收喷嘴。喷嘴包括在燃料排出期间压缩在车辆燃料箱的填充管上的波纹管。波纹管围绕喷嘴喷口以限定延伸穿过喷嘴体的蒸汽返回流动路径。喷嘴的主体由主体部件和复合地限定蒸汽返回流动通道的蒸气通道帽复合地形成。只有当跳闸机构杆被锁定在操作位置时，才能由操作杆打开或保持打开的控制阀来控制燃料的流动。机械互锁防止脱扣机构杆的闩锁，除非波纹管与填充管密封接合而被压缩。当波纹管被压缩时，跳闸杆被锁住。如果填充管中的燃料水平覆盖喷嘴的端部，则真空致动装置解除脱扣机构杆。如果蒸汽返回流路中的压力上升到表示回流阻塞的水平，则脱扣杆也被解锁。在波纹管中设置蒸气阀，以防止当喷嘴处于静止位置时燃油蒸汽逸出。波纹管和喷嘴的角度关系便于利用填充管获得密封。在蒸汽密封件的外部和邻近蒸气密封件处形成凹槽，使得蒸汽密封件在插入填充管道时在喷口破裂的情况下保持其完整性。跳闸机构子组件，喷口子组件和波纹管子组件便于喷嘴的重建以及原始组件。

3. 发明授权

US5421382A Vapor recovery nozzles and sub-assemblies therefor 失效
标题翻译：蒸气回收喷嘴及其组件
公开(公告)号：US5421382A
公开(公告)日：1995-06-06
申请号：US883680
申请日：1992-05-15
申请人： Donald L. Leininger , Robert W. Guertin , Bruce P. Baker
发明人： Donald L. Leininger , Robert W. Guertin , Bruce P. Baker
IPC分类号： B67D7/42 , B67D7/46 , B67D7/54 , B67D5/37
CPC分类号： B67D7/42 , B67D7/46 , B67D7/54 , B67D2007/545
摘要： A vapor recovery nozzle employed in minimizing atmospheric pollution by fuel vapors is described. The nozzle comprises a bellows which is compressed against the fill pipe of a vehicle during discharge of fuel therein. The bellows surrounds a nozzle spout to define a vapor return flow path which extends through a nozzle body. The body of the nozzle is compositely formed by a body member and a vapor path cap which compositely define the vapor return flow passage. Flow of fuel is controlled by a valve which may be opened by an operating lever only when a trip stem is latched in an operative position. A mechanical interlock prevents latching of the trip stem unless the bellows is compressed. When the bellows is so compressed, the trip stem is latched. If the level of fuel in the fill pipe covers the end of the spout, vacuum actuated means unlatch the trip mechanism stem. If the pressure in the vapor return flow path rises to a level indicating a blockage in return flow, time trip stem is also unlatched. A vapor valve is provided in the bellows to prevent the escape of fuel vapors when the nozzle is in a rest position. Angular relationships of the bellows and the spout facilitate obtaining a seal with a fill pipe. A groove is formed in the spout outwardly of and adjacent the vapor seal so that the vapor seal maintains its integrity in the event the spout is broken when inserted in a fill pipe.
摘要翻译：描述了用于通过燃料蒸气最小化大气污染的蒸气回收喷嘴。喷嘴包括在其中排出燃料期间压缩在车辆的填充管上的波纹管。波纹管围绕喷嘴喷口以限定延伸穿过喷嘴体的蒸汽返回流动路径。喷嘴的主体由主体部件和复合地限定蒸汽返回流动通道的蒸气通道帽复合地形成。燃料的流动由阀门控制，该阀门只有在脱扣杆被锁定在操作位置时才能被操作杆打开。机械互锁防止挡块锁定，除非波纹管被压缩。当波纹管被压缩时，跳闸杆被锁住。如果填充管中的燃料水平覆盖喷嘴的端部，则真空致动装置解除脱扣机构杆。如果蒸汽返回流路中的压力上升到指示回流阻塞的水平，则时间跳闸阀杆也被解锁。在波纹管中设置蒸气阀，以防止当喷嘴处于静止位置时燃油蒸汽逸出。波纹管和喷嘴的角度关系便于利用填充管获得密封。在蒸汽密封件的外部和邻近蒸气密封件处形成凹槽，使得蒸汽密封件在插入填充管道时在喷口破裂的情况下保持其完整性。

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