Three knife trimmer

Details Three knife trimmer Three knife trimmer

2005-05-24

2005-05-24

Good, Charles (Department: 3724)

Cutting

Means to drive or to guide tool

With simple rectilinear reciprocating motion only

C083S311000, C083S343000, C083S555000, C083S602000, C083S628000, C083S934000

Reexamination Certificate

active

06895847

ABSTRACT:
A three knife trimmer has a front knife and two lateral knives. A drive device drives the front knife and the two lateral knives such that a front cut and at least one lateral cut are performed with phase displacement by the front knife and at least one of the two lateral knives on the material to be cut. The drive device has at least one drive curve. At least two pivotable levers engage the drive curve, wherein the front knife and at least one of the two lateral knives are drivingly connected to the at least two pivotable levers.

REFERENCES:
patent: 3800647 (1974-04-01), Morse et al.
patent: 3918336 (1975-11-01), Macey et al.
patent: 537260 (1973-07-01), None
patent: 3201836 (1983-09-01), None
patent: 4009911 (1990-10-01), None

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