公开(公告)号：US20180238474A1

公开(公告)日：2018-08-23

申请号：US15437877

申请日：2017-02-21

申请人： Henry Alexander Braddock, III

发明人： Henry Alexander Braddock, III

IPC分类号： F16L9/00 ,  B21D7/00

CPC分类号： F16L9/003 ,  B21D17/00 ,  B21D17/04 ,  B21H7/187 ,  F16L9/006 ,  F16L9/17

摘要： A tube and method for sizing the effective inside diameter of the tube to a smaller effective inside diameter is provided. The method uses rollers that apply focused pressure to the tube to create a crease that reduces the effective inside diameter without substantially changing the outside envelope of the tube. The crease may be either a radius or squared. Reducing the effective inside diameter of the tube creates radiused surfaces for a self-tapping screw to cut threads.

公开(公告)号：US10400919B2

公开(公告)日：2019-09-03

申请号：US15437877

申请日：2017-02-21

申请人： Henry Alexander Braddock, III

发明人： Henry Alexander Braddock, III

IPC分类号： F16L9/00 ,  B21D17/00 ,  B21H7/18 ,  B21D17/04 ,  F16L9/17

摘要： A tube and method for sizing the effective inside diameter of the tube to a smaller effective inside diameter is provided. The method uses rollers that apply focused pressure to the tube to create a crease that reduces the effective inside diameter without substantially changing the outside envelope of the tube. The crease may be either a radius or squared. Reducing the effective inside diameter of the tube creates radiused surfaces for a self-tapping screw to cut threads.

公开(公告)号：USD809994S1

公开(公告)日：2018-02-13

申请号：US29574335

申请日：2016-08-15

申请人： Henry Alexander Braddock, III

设计人： Henry Alexander Braddock, III