Severing by tearing or breaking – Methods – With preliminary weakening
Patent
1991-07-17
1992-09-01
Watts, Douglas D.
Severing by tearing or breaking
Methods
With preliminary weakening
225 965, 225101, B26F 300
Patent
active
051432684
ABSTRACT:
Method and apparatus is disclosed for severing flat tubing. The method involves the steps of clamping a length of tubing, deeply scoring the tubing on opposite sides and applying a high impact axial force to sever the tube.
REFERENCES:
patent: 3568488 (1971-03-01), Franks
patent: 3692219 (1972-09-01), Franks
patent: 3757627 (1973-09-01), Lange
patent: 4111346 (1978-09-01), Bertolette
patent: 4226352 (1980-10-01), Watson
patent: 4910991 (1990-03-01), Bertolette et al.
Crown Unlimited Machine, Inc.
Jones Eugenia A.
Watts Douglas D.
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