公开(公告)号：US4022499A

公开(公告)日：1977-05-10

申请号：US567591

申请日：1975-04-14

Applicant: Paul M. Holmes ,  Charles F. Crissy ,  Douglas M. Brant

Inventor： Paul M. Holmes ,  Charles F. Crissy ,  Douglas M. Brant

IPC: F16L19/08 ,  F16L25/00

CPC classification number: F16L37/091 ,  F16L19/08

Abstract: A compression fitting for use with tubular conduits wherein the fitting includes means for retaining the desired positioning of the conduit or tube within the fitting prior to completion of the making of the joint by the tightening of the compression nut. The tube retaining means disclosed take the form of two embodiments. One of the tube retainers is in the form of gripping means which engage the tube when initially inserted into the fitting to prevent partial axial withdrawal of the tube prior to completion of the joint. Spring biased edges embed into the tube exterior surface preventing inadvertent axial displacement of the tube prior to axial forces being imposed upon the tube during completion of the joint. The second type of tube retention utilizes a plurality of serrations engaging the end of the tube which embed into the tube end and retain the tube against rotation relative to the fitting during tightening of the compression nut.

Abstract translation: 一种用于管状管道的压缩配件，其中所述配件包括用于在通过紧固所述压缩螺母完成所述接头的制造之前，将所述导管或管的所述定位保持在所述配件内的装置。 所公开的管保持装置采取两个实施例的形式。 管保持器中的一个是夹紧装置的形式，其在最初插入配件中时与管接合以防止在接头完成之前管的部分轴向退回。 弹簧偏置边缘嵌入管外表面，防止在接头完成期间轴向力施加于管之前管的无意轴向位移。 第二类型的管保持利用多个锯齿接合管的端部，其嵌入管端并且在紧固压缩螺母期间保持管相对于配件的旋转。