公开(公告)号：US3964353A

公开(公告)日：1976-06-22

申请号：US603070

申请日：1975-08-08

Applicant: James E. Fowler

Inventor： James E. Fowler

IPC: B26D1/00 ,  B26D3/08

CPC classification number: B26D3/085 ,  B26D3/006 ,  D06N7/0081 ,  D06N2203/048 ,  D06N2209/128 ,  Y10S83/915 ,  Y10S83/936 ,  Y10T83/0341 ,  Y10T83/8831 ,  Y10T83/9454

Abstract: Method and apparatus to score cut the hardbacking of carpet tiles to relieve the inherent stresses therein to alleviate the tendency of the carpet tiles to pucker when laid in operative position on the floor. The back of the carpet tiles are cut by a serrated die cutter to produce an undulating configuration in the backing of the carpet tile.