公开(公告)号：US10682749B2

公开(公告)日：2020-06-16

申请号：US15959315

申请日：2018-04-23

申请人： Mike Rittenhouse

发明人： Mike Rittenhouse

IPC分类号： B25F1/00 ,  B21D39/02 ,  F24F13/02 ,  B25B27/16 ,  B25G3/00 ,  F16L23/14 ,  F16L23/024

摘要： A combination sheet metal hammer and duct stretcher device. The device is directed to the field of heating, ventilation and air conditioning and particularly to a duct assembly tool for drawing and pinching two pieces of duct work together.

公开(公告)号：US20180304452A1

公开(公告)日：2018-10-25

申请号：US15959315

申请日：2018-04-23

申请人： Mike Rittenhouse

发明人： Mike Rittenhouse

IPC分类号： B25F1/00 ,  B21D39/02 ,  B25B27/16 ,  F24F13/02 ,  F16L23/024

CPC分类号： B25F1/006 ,  B21D39/025 ,  B25B27/16 ,  B25G3/00 ,  F16L23/024 ,  F16L23/14 ,  F24F13/02 ,  F24F13/0209

摘要： A combination sheet metal hammer and duct stretcher device. The device is directed to the field of heating, ventilation and air conditioning and particularly to a duct assembly tool for drawing and pinching two pieces of duct work together.