公开(公告)号：US3897090A

公开(公告)日：1975-07-29

申请号：US25493472

申请日：1972-05-19

Applicant: PLASTIC TUBING

Inventor： MAROSCHAK ERNEST J

IPC: F16L25/00 ,  F16L37/084 ,  F16L31/00

CPC classification number: F16L25/0063 ,  F16L25/0045 ,  F16L37/084 ,  Y10S285/903 ,  Y10S285/921

Abstract: A corrugated plastic pipe with a coupler integrally formed at one end thereof for releasable connection with the opposite end of another like pipe and wherein the coupler is in the form of an annular collar with a plurality of latching members formed integrally therewith and extending inwardly and adapted to engage the rib of an interconnected pipe for releasable connection therewith.

Abstract translation: 一种具有耦合器的波纹塑料管，其一端形成在其一端，用于与另一个类似管道的相对端可释放地连接，并且其中耦合器为环形环形的形式，多个闩锁构件与其一体形成并向内延伸并适应 以接合互连管的肋以便于与其可释放地连接。

公开(公告)号：US3864446A

公开(公告)日：1975-02-04

申请号：US42299373

申请日：1973-12-10

Applicant: PLASTIC TUBING

Inventor： MAROSCHAK ERNEST J

IPC: B29C33/00 ,  B29C33/30 ,  B29C33/42 ,  B29C47/12 ,  B29C49/00 ,  B29C49/22 ,  B29C49/48 ,  B29D23/18 ,  B29C17/07 ,  B29C17/10 ,  B29C17/16

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 ,  Y10S264/52

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 positioning and securing relatively short inserts or segmental blocks in otherwise uninterrupted semicircular valleys of cooperating pairs of semitubular mold sections of 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定位并固定在另一个不间断的半圆形凹槽中来实现转换，所述半圆形凹槽与塑料管被模制的模具的配对的半对模具部分成对。