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公开(公告)号：US07225839B2
公开(公告)日：2007-06-05
申请号：US11256422
申请日：2005-10-21
IPC分类号： B65B1/04
CPC分类号： B65D83/42 , B29C45/0001 , B29K2021/00 , B29L2031/7506
摘要： The present invention is directed to an improvement for a fill valve (22) for an aerosol container (10, 30) to provide better sealing capability. The fill valve is made using a flashless injection molding process in which both the mold cavity and molding material are heated to elevated temperatures to significantly improve cross-linking which occurs during the molding process. A backside (22a) of the fill valve now has a recessed portion (56) to facilitate ejection of the valve from a mold so leak paths are not created due to the forces applied to the valve during its extraction from the mold. The recessed portion reduces the amount of material required to make the fill valve and makes the fill valve flexible to aid in providing a good seal against leakage of a propellant from the container after filling.
摘要翻译： 本发明涉及一种用于气溶胶容器（10,30）的填充阀（22）的改进以提供更好的密封能力。 填充阀是使用无闪蒸注射成型方法制造的，其中模具腔和模制材料都被加热到升高的温度，以显着改善在模制过程中发生的交联。 填充阀的后侧（22a）现在具有凹部（56），以便于将阀从模具中排出，因为在从模具中提取期间施加到阀上的力不会产生泄漏路径。 凹入部分减少了制造填充阀所需的材料的量，并使填充阀柔性以帮助提供良好的密封，以防止在填充之后推进剂从容器中泄漏。
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公开(公告)号：US20060162807A1
公开(公告)日：2006-07-27
申请号：US11256422
申请日：2005-10-21
IPC分类号： B65B1/04
CPC分类号： B65D83/42 , B29C45/0001 , B29K2021/00 , B29L2031/7506
摘要： The present invention is directed to an improvement for a fill valve (22) for an aerosol container (10, 30) to provide better sealing capability. The fill valve is made using a flashless injection molding process in which both the mold cavity and molding material are heated to elevated temperatures to significantly improve cross-linking which occurs during the molding process. A backside (22a) of the fill valve now has a recessed portion (56) to facilitate ejection of the valve from a mold so leak paths are not created due to the forces applied to the valve during its extraction from the mold. The recessed portion reduces the amount of material required to make the fill valve and makes the fill valve flexible to aid in providing a good seal against leakage of a propellant from the container after filling.
摘要翻译： 本发明涉及一种用于气溶胶容器（10,30）的填充阀（22）的改进以提供更好的密封能力。 填充阀是使用无闪蒸注射成型方法制造的，其中模具腔和模制材料都被加热到升高的温度，以显着改善在模制过程中发生的交联。 填充阀的后侧（22a）现在具有凹部（56），以便于将阀从模具中排出，因为在从模具中提取期间施加到阀上的力不会产生泄漏路径。 凹入部分减少了制造填充阀所需的材料的量，并使填充阀柔性以帮助提供良好的密封，以防止在填充之后推进剂从容器中泄漏。
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公开(公告)号：US20060214332A1
公开(公告)日：2006-09-28
申请号：US11277626
申请日：2006-03-28
IPC分类号： B29C45/24
CPC分类号： B29C45/2756 , B29C45/02 , B29C45/38 , B29K2021/006 , Y02W30/68
摘要： A method of waste-less molding of rubber is disclosed. The method includes, in a first step, providing unvulcanized rubber that forms rubber of a predetermined tensile strength when vulcanized. In a second step, a mold having an injection port and a mold cavity is provided. The injection port and mold cavity are in fluid communication for forming a rubber part within the mold cavity and a sprue connected thereto extending into the injection port. In a third step, the injection port is configured to have a first point of a first cross-sectional area and a second point of a second cross-sectional area wherein the ratio of the first cross-sectional area to the second cross sectional area with regard to the tensile strength of the rubber causes the sprue to fail at the first point prior to failing at the second point when sufficient tensile stress is applied to the part.
摘要翻译： 公开了一种无废塑料成型方法。 该方法包括在第一步骤中提供硫化时形成预定拉伸强度的橡胶的未硫化橡胶。 在第二步骤中，提供具有注射口和模腔的模具。 注射口和模具腔在流体连通中，用于在模具腔内形成橡胶部分，并且连接到其上的浇口延伸到注射口中。 在第三步骤中，注入口被配置为具有第一横截面积的第一点和第二横截面积的第二点，其中第一横截面积与第二横截面积的比率与 关于橡胶的拉伸强度，在向该部件施加足够的拉伸应力的情况下，在第二点出现故障之前的第一点处，浇口失效。
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