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    • 48. 发明授权
    • Irrigation tape and method of producing same
    • 灌溉带及其生产方法
    • US5076498A
    • 1991-12-31
    • US372354
    • 1989-06-09
    • James D. Townsend
    • James D. Townsend
    • A01G25/02B29C51/22B29C65/00B29C69/00
    • B29C69/001A01G25/02B29C51/225B29C65/00B29C66/1122B29C66/43B29C66/472B29C2793/0045B29C47/0021B29C47/0038B29C47/0047B29C47/0054B29C47/0057B29C47/0061B29C47/0064B29C47/0066B29L2023/22B29L2031/601
    • A drip irrigation tape and a method and apparatus for manufacture of same in which there are foils of thermoplastics material formed and sealed to produce a main waterway extending along the tape, and a series of tortuous flow restricting channels which are formed in a further foil by forming these in a channel shape mould on a drum, each channel communicating at one position with the waterway and having an outlet at another position to give a drip feed from each channel, the invention further including using an extrusion of thermoplastics foil directly from an extruding machine into such a forming machine, effecting an aperture from the tortuous channel to the main waterway by using a heated finger, effecting an outlet from the tortuous channel by providing an offset channel part which can then be nicked with a hot blade, and effecting an improved sealing together by using spaced apart dimples in providing joining fusing pressure.
    • PCT No.PCT / AU88 / 00391 Sec。 371日期1989年6月9日第 102(e)日期1989年6月9日PCT提交1988年10月7日PCT公布。 出版物WO89 / 03172 日期:1989年4月20日。一种滴灌胶带及其制造方法和装置,其中形成并密封热塑性材料的箔以产生沿胶带延伸的主水路,以及一系列曲折的流动限制通道, 通过在滚筒上的通道形状的模具中形成它们而形成在另一个箔中,每个通道在一个位置处与水路连通并且在另一位置具有出口以从每个通道提供滴落进料,本发明还包括使用挤出 热塑性塑料箔直接从挤压机进入这样的成型机,通过使用加热的手指从曲折通道到主水道实现孔,通过提供偏移通道部分来实现曲折通道的出口,该偏移通道部分然后可以用 热刀片,并且通过在提供接合熔合压力的情况下通过使用间隔开的凹坑来实现改进的密封。
    • 50. 发明授权
    • Method of fabricating tubular composite structures
    • 制造管状复合结构的方法
    • US4704240A
    • 1987-11-03
    • US907954
    • 1986-09-10
    • Richard T. ReavelyPeter C. OgleRobert V. Kromrey
    • Richard T. ReavelyPeter C. OgleRobert V. Kromrey
    • B29C35/02B29C43/10B29C43/12B29C70/44B29D23/00B29D24/00B29C65/02
    • B29C43/10B29C35/02B29C70/446B29D23/00B29D24/004B29C43/12B29L2023/22B29L2031/601B29L2031/7146Y10S425/019Y10S425/044
    • A method of fabricating a fiber reinforced resin composite article having tubular structures that has improved density and fewer voids. The method comprises laying up a prepreg that has at least two tubular structures and disposing a thermally conductive metallic support structure within and in contact with the tubular structures. The prepreg is disposed within and in substantially complete contact with a tool which has at least one hole. An expandable bag having at least one opening in communication with a tube is inserted within each tubular structure thereby forming a void space between the bag and the tubular structure. The void space is substantially filled with a solid flowable particulate silicone rubber that contacts the prepreg and the tube is sealed to edge of hole in the tool. The solid flowable rubber is caused to transfer a substantially uniform predetermined pressure to the surface of the prepreg by pressurizing the expandable bag. The composite prepreg is exposed to heat by conducting heat through the thermally conductive metallic support structure in order to cure the composite article.
    • 一种具有管状结构的纤维增强树脂复合制品的制造方法,其具有改进的密度和较少的空隙。 该方法包括铺设具有至少两个管状结构并且将导热金属支撑结构设置在管状结构内并与管状结构接触的预浸料。 预浸料被设置在具有至少一个孔的工具内并基本上完全接触。 具有与管连通的至少一个开口的可膨胀袋被插入每个管状结构内,从而在袋和管状结构之间形成空隙。 空隙空间基本上填充有与预浸料坯接触的固体可流动的颗粒状硅橡胶,并且该管密封在工具中孔的边缘。 使可固体流动橡胶通过对可膨胀袋进行加压而将基本上均匀的预定压力传递到预浸料坯的表面。 复合预浸料通过传导热量通过导热金属支撑结构而暴露于热,以便固化复合制品。