B21C37/29 - CPC Classification Index

ClassID:

38353 ⎘

B21C37/29 - CPC Classification

Classification description:

Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes; Making tubes of special shape; Making tube fittings; Making tube fittings for connecting pipes, e.g. U-pieces Making branched pieces, e.g. T-pieces

Sub-classes:

B21C37/292 » {Forming collars by drawing or pushing a rigid forming tool through an opening in the tube wall} 9
B21C37/294 » {Forming collars by compressing a fluid or a yieldable or resilient mass in the tube} 6
B21C37/296 » {Making branched pieces starting from strip material; Making branched tubes by securing a secondary tube in an opening in the undeformed wall of a principal tube} 9
B21C37/298 » {Forming collars by flow-drilling } 5

Recent Application in this class:

20250297701

METHOD AND DEVICE FOR MAKING A T-BRANCH FOR PIPES

20240335869

TEE TYPE CONNECTOR PIPE MANUFACTURING METHOD

20220088660

Stainless-steel Tee-pipe Moulding Process

20220055328

Auto extruded split/spherical tee and full encirclement saddle

20200188978

Forming method and forming apparatus

20180363812

Hybrid fluid-flow fitting assembly

20110278816

Bicycle frame

20090000286

Assembly for fitting together exhaust pipes in multi-cylinder engine

15094999

System for forming a T-shaped tubular fitting