Apparatus for severing off pieces from an endless web

Details Apparatus for severing off pieces from an endless web Apparatus for severing off pieces from an endless web

1993-09-27

1994-09-27

Phan, Hien H.

Cutting

With means to control or modify temperature of apparatus or...

Of tool

83402, 836391, 83658, B26D 106, B26D 710

Patent

active

053498909

ABSTRACT:
A heated knife has a motor adapted to drive the knife against a cutting block with the web inbetween. The knife body is metal and has a cutting edge with side surfaces at an obtuse angle to each other. The knife is formed with a lengthwise bore which houses a Calrod capable of heating the knife up to about 950.degree. F. The knife body has relatively thin lateral ears spaced from the heater and which receive support bolts from the opposite ends of a driving yoke by which the motor drives the knife. This arrangement reduces the amount of heat withdrawn from the knife.

REFERENCES:
patent: 3289516 (1966-12-01), Bohrer et al.
patent: 3362272 (1968-01-01), Grosse
patent: 3732770 (1973-05-01), Ottavan
patent: 3874975 (1975-04-01), Lagain
patent: 4215607 (1980-08-01), Hudson et al.
patent: 4449434 (1984-05-01), Johnson
patent: 4505412 (1985-03-01), Reba
patent: 4693701 (1987-09-01), deBin
patent: 4823660 (1989-04-01), Forthmann

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