US PATENT SUBCLASS 228 / 145
.~.~.~ To form helically seamed tube


Current as of: June, 1999
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228 /   HD   METAL FUSION BONDING

101  DF  PROCESS {38}
141.1  DF  .~ With shaping {7}
144  DF  .~.~ And edge joining of one piece blank or strip {4}
145.~.~.~ To form helically seamed tube


DEFINITION

Classification: 228/145

(under subclass 144) Process including bending a long attenuated web into a tubular coil to juxtapose the faces of opposite side edges along a line running spirally axially

along the tube so formed, and bonding the resulting seam.

SEE OR SEARCH THIS CLASS, SUBCLASS:

15.7, from apparatus for forming and edge bonding to form a helically seamed tube.

SEE OR SEARCH CLASS

72, Metal Deforming,

49+, for metal tube seaming by deformation. 140, Wireworking,

76, for a process of making ferrules by winding wire into a helix and soldering the adjacent convolutions together.

493, Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet of Web,

299+, for making a helical tube from a sheet or web.