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公开(公告)号：US3784346A
公开(公告)日：1974-01-08
申请号：US3784346D
申请日：1972-06-12
Applicant: PLASTIC TUBING
Inventor： MAROSCHAK E
IPC: B29C33/00 , B29C33/30 , B29C33/42 , B29C47/12 , B29C49/00 , B29C49/22 , B29C49/48 , B29D23/18 , B29D23/03
CPC classification number: B29D23/18 , B29C33/306 , B29C33/42 , B29C47/0023 , B29C47/0033 , B29C47/0828 , B29C47/126 , B29C49/0021 , B29C49/22 , B29C49/48 , B29C2793/0045 , B29L2023/18 , B29L2024/00 , B29L2031/601
Abstract: A blow-molding machine for molding corrugated plastic pipe having uninterrupted annular ribs thereon is converted for forming corrugated plastic pipe having interrupting gaps or recesses in certain annular ribs of corrugated pipe being formed. Essentially the conversion is effected by inserting and releasably securing relatively short inserts or segmental blocks in otherwise uninterrupted semicircular valleys of cooperating pairs of semitubular mold sections or dies between and against which the plastic pipe is molded.
Abstract translation: 一种用于成型具有不间断的环形肋的波纹状塑料管的吹塑机被转换成用于形成波形管中的波纹状塑料管，该波形塑料管在形成的波纹管的某些环形肋中具有中断间隙或凹陷。 基本上通过将相对较短的插入件或节段块插入和可释放地固定在辅助的成对的半管形模具部分或模具之间的不间断的半圆形的凹槽中实现转换，塑料管被模制。
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公开(公告)号：US3802202A
公开(公告)日：1974-04-09
申请号：US22850872
申请日：1972-02-23
Applicant: PLASTIC TUBING
Inventor： MAROSCHAK E
CPC classification number: E02B11/005
Abstract: A corrugated plastic drainage pipe having spaced apart annular ribs with certain ribs being interrupted and having a set of three circularly arranged spaced apart arcuate rib segments defining a series of three drainage holes positioned between the ends of adjacent rib segments and wherein the rib segments are of such extent and so arranged as to position the drainage holes around the bottom of the pipe and wherein sight means are provided on the upper surface of the pipe and running longitudinally thereof in direct opposition to the intermediately positioned drainage holes for aiding in installing the pipe in the ground with all of the drainage holes located below the horizontal center line of the pipe and with the intermediate drainage holes occupying lowermost position.
Abstract translation: 波纹塑料排水管具有间隔开的环形肋，其中某些肋被中断并且具有一组三个圆形布置的间隔开的弧形肋段，其限定一系列位于相邻肋段的端部之间的三个排水孔，并且其中肋段是 这样的程度和布置成将排水孔定位在管的底部，并且其中瞄准装置设置在管的上表面上并纵向延伸，直接与位于中间的排水孔相对，用于帮助将管安装在 所有排水孔位于管道水平中心线下方，地面中间排水孔位于最低位置。
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Patent Agency Ranking
公开(公告)号：US3747352A
公开(公告)日：1973-07-24
申请号：US3747352D
申请日：1972-06-12
Applicant: PLASTIC TUBING
Inventor： MAROSCHAK E
CPC classification number: E02B11/005
Abstract: A resilient plastic drainage pipe of lightweight construction having spaced apart successively arranged ribs with interconnecting valley portions therebetween defining corrugations along the periphery of the pipe, the majority of the ribs being uninterrupted and arranged in spaced groups with an interrupted rib between adjacent groups, each interrupted rib comprising a set of three circularly arranged spaced apart arcuate rib segments correspondingly arranged throughout the pipe, one rib segment of each set being substantially longer than the other two rib segments and having an arcuate extent of at least 180 degrees, recessed wall portions extending between and interconnecting adjacent arcuate rib segments and positioned at a level intermediate that of the peripheries of the ribs and valley portions, and a drainage hole provided in each recessed wall portion.
Abstract translation: 具有轻质结构的弹性塑料排水管具有间隔开的连续布置的肋，其间具有相互连接的谷部分，沿着管的周边限定波纹，大部分肋是不间断的，并且以相邻组之间的中断肋布置成间隔开的组， 肋条包括一组三个圆形布置的间隔开的弧形肋段，其相应地布置在整个管道中，每组的一个肋段基本上比另外两个肋段长得多，并且具有至少180度的弓形范围， 并且将相邻的弧形肋段相互连接并且定位在与肋和谷部的周边相邻的水平面的水平面上，以及设置在每个凹入壁部分中的排水孔。
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公开(公告)号：US3843758A
公开(公告)日：1974-10-22
申请号：US27122672
申请日：1972-07-13
Applicant: PLASTIC TUBING
Inventor： MAROSCHAK E
CPC classification number: B26D3/16 , B26F1/0023 , Y10S264/52 , Y10S285/903
Abstract: A method for making plastic corrugated tubes particularly useful for irrigation pipes, and wherein a tube of hot plastic material is extruded into a blow molding zone which molds annular corrugations of alternating ribs and valleys on the tube during forward movement thereof through the molding zone. The thus molded corrugated tube is delivered from the molding zone and fed through a slitting station wherein series of circularly spaced slits are cut in certain valleys of the tube by circularly arranged slitting saws or cutting blades. The slit tube is directed from the slitting station through a cutting station where it is cut into predetermined lengths ready for delivery to a customer.
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公开(公告)号：US3819778A
公开(公告)日：1974-06-25
申请号：US26219272
申请日：1972-06-13
Applicant: PLASTIC TUBING
Inventor： MAROSCHAK E
CPC classification number: E02B11/005 , B26D3/16 , B26F1/003 , Y10S264/52
Abstract: A method of making plastic corrugated pipe which includes the steps of extruding a hot plastic material into a blow molding zone defined by a series of cooperating pairs of moving die blocks to form a pipe having annular corrugations of alternating ribs and valleys thereon during forward movement of the pipe through the blow molding zone, delivering the corrugated pipe from the blow molding zone at a predetermined speed, feeding the corrugated pipe delivered from the blow molding zone successively through drilling and cutting stations by meshingly engaging corrugations of the pipe with a plurality of forwardly moving teeth with successive teeth entering successive valleys and pushing forwardly against the successive ribs of the corrugated pipe, drilling holes in the pipe as it passes through the drilling station, cutting the drilled pipe into predetermined lengths as it passes through the cutting station, and sensing variations in tension in the corrugated pipe being fed and in response thereto varying the rate of movement of the forwardly moving teeth to compensatively vary the rate of feed of the pipe to substantially accord with the rate of delivery of the pipe from the blow molding zone to avoid undesirable stretching or longitudinal compression of the pipe and to thereby obtain a pipe with a substantially uniform number of ribs and valley portions per unit of length thereof.
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公开(公告)号：US3799418A
公开(公告)日：1974-03-26
申请号：US26219372
申请日：1972-06-13
Applicant: PLASTIC TUBING
Inventor： MAROSCHAK E
CPC classification number: B29C31/002 , B29L2023/18
Abstract: An apparatus and method for feeding a molded corrugated plastic pipe having annular corrugations of alternating ribs and valleys thereon, and wherein the pipe is positively fed or conveyed forwardly in engagement with a pair of rotating feed members. At least one of the feed members is driven under control of a pipe tension sensing means and has a plurality of peripheral teeth thereon which successively enter successive valleys in the pipe and push forwardly against respective ribs of the pipe.
Abstract translation: 一种在其上具有交替的肋和谷的环形波纹的模制波纹状塑料管的装置和方法，并且其中所述管被正向馈送或向前输送以与一对旋转进给构件接合。 至少一个进给构件在管张力检测装置的控制下被驱动，并且在其上具有多个周边齿，其上连续地进入管中的连续的谷，并向前推压管道的相应肋。
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公开(公告)号：US3789615A
公开(公告)日：1974-02-05
申请号：US3789615D
申请日：1972-06-12
Applicant: PLASTIC TUBING
Inventor： MAROSCHAK E
CPC classification number: E02B11/005
Abstract: A corrugated plastic drainage pipe having a compressive strength of at least 1,000 pounds per linear foot and being of lightweight construction with a wall thickness no greater than about onesixteenth inch and wherein spaced apart successively arranged annular ribs with interconnecting annular valley portions therebetween define corrugations along the periphery of the pipe, the ribs and valley portions per foot each being about seventeen in number, the majority of the annular ribs being uninterrupted and arranged in spaced groups with an interrupted rib between adjacent groups, and each interrupted rib comprising a set of three interconnected circularly arranged spaced apart arcuate rib segments correspondingly arranged throughout the pipe, and one of the rib segments of each set being substantially longer than the other two rib segments and having an arcuate extent of at least 180 degrees.
Abstract translation: 一种波纹塑料排水管，其抗压强度至少为1000磅/平方英尺，并且具有壁厚不大于约十六分之一英寸的轻质结构，并且其中间隔开的连续布置的环形肋与相互连接的环形谷部分之间形成波纹 沿着管的周边，每英尺的肋和谷部分数量大约为17，大部分环形肋不间断地布置成间隔开的组，并且在相邻组之间具有中断的肋，并且每个中断的肋包括一组 相应地布置在整个管道中的三个相互连接的圆形布置的间隔开的弧形肋段，并且每组的肋段中的一个基本上比另外两个肋段长得多且具有至少180度的弧形范围。
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