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1. 发明授权

US5620143A Constant-flow irrigation tape and method of making 失效
标题翻译：恒流灌溉胶带及其制作方法
公开(公告)号：US5620143A
公开(公告)日：1997-04-15
申请号：US328105
申请日：1994-10-24
申请人： William Delmer , Daniel Delmer , Robert Delmer , John W. Erickson , Ray C. Emmons
发明人： William Delmer , Daniel Delmer , Robert Delmer , John W. Erickson , Ray C. Emmons
IPC分类号： A01G25/02 , B05B15/00
CPC分类号： A01G25/02
摘要： A constant-flow drip irrigation tape hose includes a primary flow path communicating water along the length of the hose. A secondary drip-flow path leads from the primary flow path to an emitter site outwardly of the hose. The hose is formed with a pair of variably spaced apart walls at least one of which is formed with a continuously-open channel defining part of the secondary flow path. A second variable-area part of the secondary flow path is defined by radial spacing of the pair of walls from one another. At least one of the pair of walls is responsive to internal water pressure in the primary flow path to open and close the variable-area part of the secondary flow path in response, respectively, to decreasing and increasing water pressure in the hose. A plurality of emitter sites are spaced regularly along a length of the hose. Consequently, the hose has at least one pressure range within which it provides a nearly constant drip-flow irrigation rate to plants of a row crop as the water pressure within the hose decreases over the length of an elongate run of hose.
摘要翻译：恒流滴灌带软管包括沿着软管的长度连通水的主流路。次级滴流路径从软管的外部从主流动路径引导到发射器位置。软管形成有一对可变地间隔开的壁，其中至少一个形成有限定二次流动路径的一部分的连续开放通道。二次流动路径的第二可变区域部分由一对壁彼此的径向间隔限定。所述一对壁中的至少一个响应于所述主流路中的内部水压，以分别响应地打开和关闭所述二次流动路径的可变区域部分以减小和增加所述软管中的水压。多个发射器位置沿着软管的长度规则地间隔开。因此，软管具有至少一个压力范围，在该范围内，当软管内的水压在细长管段的长度上减小时，该压力范围向行式作物的植物提供几乎恒定的滴流灌溉速率。

2. 发明授权

US5785785A Method of making constant flow irrigation tape 失效
标题翻译：制作恒流灌溉胶带的方法
公开(公告)号：US5785785A
公开(公告)日：1998-07-28
申请号：US766624
申请日：1996-12-13
申请人： William Delmer , Daniel Delmer , Robert Delmer , John W. Erickson , Ray Charles Emmons
发明人： William Delmer , Daniel Delmer , Robert Delmer , John W. Erickson , Ray Charles Emmons
IPC分类号： A01G25/02 , B05B15/00 , B29C53/02
CPC分类号： A01G25/026 , Y10T156/1013 , Y10T156/1038
摘要： A constant-flow drip irrigation tape hose includes a primary flow path communicating water along the length of the hose. A secondary drip-flow path leads from the primary flow path to an emitter site outwardly of the hose. The hose is formed with a pair of variably spaced apart walls at least one of which is formed with a continuously-open channel defining part of the secondary flow path. A second variable-area part of the secondary flow path is defined by radial spacing of the pair of walls from one another. At least one of the pair of walls is responsive to internal water pressure in the primary flow path to open and close the variable-area part of the secondary flow path in response, respectively, to decreasing and increasing water pressure in the hose. A plurality of emitter sites are spaced regularly along a length of the hose. Consequently, the hose has at least one pressure range within which it provides a nearly constant drip-flow irrigation rate to plants of a row crop as the water pressure within the hose decreases over the length of an elongate run of hose.
摘要翻译：恒流滴灌带软管包括沿着软管的长度连通水的主流路。次级滴流路径从软管的外部从主流动路径引导到发射器位置。软管形成有一对可变地间隔开的壁，其中至少一个形成有限定二次流动路径的一部分的连续开放通道。二次流动路径的第二可变区域部分由一对壁彼此的径向间隔限定。所述一对壁中的至少一个响应于所述主流路中的内部水压，以分别响应地打开和关闭所述二次流动路径的可变区域部分以减小和增加所述软管中的水压。多个发射器位置沿着软管的长度规则地间隔开。因此，软管具有至少一个压力范围，在该范围内，当软管内的水压在细长管段的长度上减小时，该压力范围向行式作物的植物提供几乎恒定的滴流灌溉速率。

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