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    • 1. 发明授权
    • Process for lining a high pressure pipeline
    • 高压管道内衬工艺
    • US4818314A
    • 1989-04-04
    • US906655
    • 1986-09-12
    • Perry N. BrittainJohn D. Kirkpatrick
    • Perry N. BrittainJohn D. Kirkpatrick
    • B29C63/34B29C65/02F16L55/165B29C17/07B32B31/04
    • B29C63/34B29C63/346B29C65/02B29C66/5344F16L55/1654B29C66/71Y10T29/4987
    • A method for lining a high pressure pipeline with a tubular plastic liner. After depressurizing, purging and cleaning the pipeline is broken into discrete sections each of which is to receive a liner segment. The sections are reamed to remove obstructions which might damage the liner and a close-fitting liner segment is drawn into each section. Each liner segment is fixed at opposed ends of respective pipeline sections to prevent longitudinal movement of the segments. Bleeder holes are provided through the pipeline walls at opposed ends of each pipeline section. After the pipeline sections are reconnected to reform the pipeline, a relatively warm, pressurized fluid is pumped through the pipeline to radially expand each liner segment against the inner walls of the pipeline, thus evacuating the spaces between liner segments and pipeline sections by forcing air, water and other impurities through the bleeder holes.
    • 一种用管状塑料衬垫衬里高压管道的方法。 在减压,清洗和清洁之后,管道被分成各自分开的部分,每个部分将接收衬管段。 这些部分被铰接以去除可能损坏衬管的障碍物,并且将紧密的衬垫段拉入每个部分。 每个衬垫段固定在相应管道段的相对端,以防止段的纵向移动。 通过每个管道部分的相对端处的管道壁设置有出气孔。 在管道段重新连接以改造管道之后,相对温暖的加压流体被泵送通过管道以使每个衬套段径向扩张抵靠管道的内壁,从而通过迫使空气排出衬管段和管道段之间的空间, 水和其他杂质通过泄放孔。
    • 2. 发明授权
    • Apparatus for transporting sectional molds
    • 用于运输截面模具的装置
    • US4560341A
    • 1985-12-24
    • US606976
    • 1984-05-04
    • Robert X. Hafele
    • Robert X. Hafele
    • B29C33/22B29C49/32B29C49/56B29C17/07
    • B29C49/56B29C33/22B29C49/32
    • A method and apparatus are disclosed for transferring blanks, plastic parisons or other articles to be molded in a sealed cavity. One embodiment includes mold sections which are closeable along a first axis to form a mold cavity and which are movable along a second axis from a first station where the mold sections may receive a moldable blank to a second station where the blank may be molded under pressure. Optional biasing means may be included to hold the mold sections sufficiently close together to hold the blank in the mold cavity as the mold sections move from the first station to the second station. A clamp, or other pressure applying means, exerts a final closing pressure on the mold sections at the second station for molding the blank under pressure. The clamp is stationary in relation to the first and second stations so that the mold sections can move relative to the clamp along the second axis.
    • 公开了用于将待模制的坯料,塑料型坯或其它制品转移到密封腔中的方法和装置。 一个实施例包括可沿着第一轴线关闭以形成模具腔并且可沿第二轴线从第一工位移动的模具部分,其中模具部分可容纳可模制坯件到第二工位,其中坯料可在压力下模制 。 可以包括可选的偏置装置,以在模具部分从第一站移动到第二站时将模具部分充分靠近在一起以将坯料保持在模腔中。 夹具或其他压力施加装置在第二站处的模具部分施加最终的关闭压力,以在压力下模制坯件。 夹具相对于第一和第二站静止,使得模具部分可以沿着第二轴线相对于夹具移动。
    • 3. 发明授权
    • Method of producing a biaxially oriented container of polyethylene
terephthalate or similar material
    • 制造聚对苯二甲酸乙二醇酯或类似材料的双轴取向容器的方法
    • US4540544A
    • 1985-09-10
    • US489733
    • 1983-04-29
    • Kjell M. JakobsenClaes T. Nilsson
    • Kjell M. JakobsenClaes T. Nilsson
    • B29C31/00B29C49/14B29C49/22B29C49/54B29C55/30B29C59/04B65D1/02B29C17/07
    • B29C67/0003B29C31/002B29C49/14B29C49/22B29C49/541B29C55/30B29C59/043B29C67/0014B65D1/0207B65D1/0223B29B2911/14913B29B2911/14926B29C2043/3618B29C2043/3631B29C2049/0089B29C2049/4892B29C2793/009B29K2067/00B29K2105/258Y10S264/904Y10T428/1379
    • A method for producing a container from a tubular blank of polyethylene terephthalate or similar material, according to which a polyethylene terephthalate blank is stretched at least approximately 3-fold to produce a preform (20). In an axial section through the preform, the contour length substantially corresponds to the contour length in an axial section through the final container. The preform (20) is heated to a temperature above the glass transition temperature (TG) and is converted to the container (21) in a blow mold (12). In doing so, the contour length of the material is maintained through successive reduction of the axial length of the body (23) which the preform constitutes during the conversion to the container. In order to achieve this, the base portion of the blow mold (11) is moved towards the orifice (22) of the final container. The container acquires a neck portion (23) and a container body (26) which are axially oriented, in the case of polyethylene terephthalate to an extent corresponding to about a 3-fold monoaxial stretching, while the container body (26) is also transversely oriented, in the case of polyethylene terephthalate to an extent corresponding to about a 3-fold stretching as a maximum. The wall thickness of the container is inversely proportional to the radius of the container. The container is dimensionally very stable and has excellent strength characteristics.
    • 一种从聚对苯二甲酸乙二醇酯或类似材料的管状坯料制造容器的方法,根据该方法,将聚对苯二甲酸乙二醇酯坯料拉伸至少约3倍以制备预型件(20)。 在通过预成型件的轴向截面中,轮廓长度基本上对应于通过最终容器的轴向截面中的轮廓长度。 将预制件(20)加热到高于玻璃化转变温度(TG)的温度,并在吹塑模具(12)中转化成容器(21)。 在这样做时,材料的轮廓长度通过在转换到容器期间预成型件构成的主体(23)的轴向长度的连续减小来维持。 为了实现这一目的,吹塑模具(11)的基部朝向最终容器的孔口(22)移动。 在聚对苯二甲酸乙二醇酯的情况下,容器获取颈部(23)和容器主体(26),其对应于大约3倍的单轴拉伸的程度,而容器主体(26)也是横向 在聚对苯二甲酸乙二醇酯的情况下为最大约3倍拉伸的程度。 容器的壁厚与容器的半径成反比。 容器在尺寸上非常稳定,具有优异的强度特性。
    • 6. 发明授权
    • Method of making plastic articles
    • 制造塑料制品的方法
    • US4519976A
    • 1985-05-28
    • US164665
    • 1980-06-30
    • Albert R. Uhlig
    • Albert R. Uhlig
    • B29C45/02B29C48/32B29C48/33B29C48/34B29C49/08B29C17/07
    • B29C47/54B29C45/02B29C47/004B29C47/0054B29C47/20B29C47/24B29C47/28B29C49/08B29C47/0023
    • A method for forming multi-directionally oriented plastic articles by shearing a thermoplastic material in a non-linear shear pattern while the material is at a temperature conducive to orientation and further processing the material by known plastic forming techniques to form an article in which the material remains oriented. More specifically, thermoplastic material is plasticized and accumulated in an amount at least sufficient to form the article, and the material is expressed under pressure from the accumulated body to and through an orifice. The material is non-linearly sheared prior to its issuance from the orifice to induce orientation stresses into the material, and, during shearing, the material is at a temperature which is conducive to orientation. The orientation stresses are frozen into the material when the material is formed to a desired configuration exteriorly of the orifice by known plastic forming techniques, such as blow molding, injection molding, compression molding, thermoforming and the like. During such forming, additional orientation stresses may be induced in the material and superimposed upon those stresses previously introduced thereinto.
    • 一种用于通过以非线性剪切图案剪切热塑性材料来形成多向定向塑料制品的方法,同时材料处于有利于取向的温度并且通过已知的塑性成形技术进一步加工材料以形成其中材料 保持领导。 更具体地说,热塑性材料被塑化并以至少足以形成物品的量积聚,并且材料在压力下从聚集体表达并通过孔口。 该材料在从孔口发出之前被非线性剪切,以将取向应力引入材料中,并且在剪切期间,材料处于有利于取向的温度。 当通过已知的塑性成形技术,例如吹塑,注射成型,压塑,热成型等将材料形成到孔的外部期望的形状时,取向应力被冷冻成材料。 在这种成形期间,可能在材料中引起附加的取向应力,并叠加在之前引入的那些应力之上。
    • 8. 发明授权
    • Method for making poly(ethylene terephthalate) article
    • 聚(对苯二甲酸乙二醇酯)制品的制备方法
    • US4512948A
    • 1985-04-23
    • US354476
    • 1982-03-03
    • Saleh A. Jabarin
    • Saleh A. Jabarin
    • B29C49/06B29C49/64B29C71/02B29C17/07
    • B29C71/02B29C49/6472B29C49/06B29K2067/00B29K2995/0017Y10S264/904
    • Disclosed is a process of making an oriented and heat set blow molded bottle of poly(ethylene terephthalate) so that the bottles resulting from the process have a density over 1.3860 cc./gm. and an onset-of-shrinkage temperature over 80.degree. C. In the process preform preheated to a temperature suitable for orientation is biaxially stretched in a blow mold and then while the hollow article walls are still in contact with the blow mold walls, the article is raised to a higher heat setting temperature in the range of 200.degree.-250.degree. C. (except for the neck) thus heat setting the bottle, and while the article is still at a shrinkage resisting pressure exceeding atmospheric cooling the article to a temperature at which it maintains its shape when not pressurized but not below 100.degree. C. It is also particularly disclosed that this cooling step can be done outside the mold. In a special embodiment of the invention where the cooling step is effected outside the mold, the cooling under the shrinkage resisting pressure is below 100.degree. C., even down to room temperature and lower, before the shrinkage resisting pressure is released from the hollow article.
    • 公开了一种制造聚对苯二甲酸乙二醇酯的定向和热定型吹塑瓶的方法,使得由该方法产生的瓶子的密度高于1.3860cc./gm。 并且收缩温度超过80℃。在预热到适合取向的温度的工艺预制件中,在吹塑模具中双轴拉伸,然后当中空制品壁仍然与吹塑模具壁接触时,制品 升温到200〜250℃(颈部除外)的较高的热定型温度,因此热定型瓶,而在制品仍然具有超过大气的耐收缩压力的情况下,制品达到温度 在不加压但不低于100℃时它保持其形状。还特别公开了该冷却步骤可以在模具外部进行。 在本发明的特定实施例中,在模具外部进行冷却步骤,在抗收缩压力从中空制品释放之前,在抗收缩压力下的冷却低于100℃,甚至低至室温和更低 。