Turning – Severing or cut-off – Processes
Patent
1989-02-27
1991-05-14
Schmidt, Frederick R.
Turning
Severing or cut-off
Processes
82 54, 82 56, 493288, B23B 100
Patent
active
050145797
ABSTRACT:
A tube supported on a rotating mandrel is cut by a pair of cutter blades spaced apart a distance corresponding substantially to the diameter of the mandrel and which are moved simultaneously in a direction toward the mandrel and transversely of its axis of rotation a distance sufficient to enable the cutters to engage the tube at circumferentially spaced zones and sever the wall of the tube. The cutters move along a path that is tangential, rather than radial, relative to the mandrel.
REFERENCES:
patent: 3862710 (1975-01-01), Bivona et al.
patent: 4302958 (1981-12-01), Andriessen et al.
patent: 4748880 (1988-06-01), Languillat
Arrow Paper Products Company
Cruz Lawrence
Schmidt Frederick R.
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