US PATENT SUBCLASS 493 / 294
.~ With lining of tube


Current as of: June, 1999
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493 /   HD   MANUFACTURING CONTAINER OR TUBE FROM PAPER; OR OTHER MANUFACTURING FROM A SHEET OR WEB

269  DF  TUBE MAKING {15}
294.~ With lining of tube


DEFINITION

Classification: 493/294

With lining of tube:

(under subclass 269) Method or apparatus including bringing together a first and a second workpiece wherein the first is to be a hollow cylinder and the second is to extend about the inside of the cylinder to restrict engagement of contents of the cylinder from the inner surface of the cylinder.

(1) Note. The inner member of this subclass may cover the entire or less surface of the cylinder; however, it is not self-sufficient to hold the contents without the cylinder.

(2) Note. Included herein is assembling a preformed cylinder and a preformed liner, even without additional "tube making".

SEE OR SEARCH THIS CLASS, SUBCLASS:

93+, for placing a liner inside a rigid container, including placing a cup-shaped liner inside a cylindrical container, since that is considered to be "container making" in that subclass.