公开(公告)号：WO2020150409A1

公开(公告)日：2020-07-23

申请号：PCT/US2020/013773

申请日：2020-01-16

Applicant: DURO DYNE CORPORATION

Inventor： BELLISE, Andrew J. ,  KRUPNICK, David B. ,  AGHABEKIAN, Steve

IPC: B21D3/14 ,  B21D39/02 ,  B25B27/02 ,  B67B7/16 ,  B67B7/00 ,  B67B7/14

Abstract: Disclosed is a tool useful for fabricating sheet metal ductwork, the tool comprises a handle portion extending from an end of which are first and second prongs, the first prong extending from and in substantially the same plane as the handle portion, the second prong extending outwardly from the handle at a obtuse angle and spaced apart and opposite from the first prong; the second prong having an arcuate tip end that is curved radially at an acute angle toward the direction of the first prong but extending just beyond it.