Rotary knife
AssigneeJO-AT Limited
InventorKeith Walters
Life of this patent
Estimating the term…
Abstract
There is described a rotary knife for use in a cutting apparatus, comprising a central hub adapted to be mounted with respect to a rotational driveshaft to define an axis of rotation; and a plurality of blades extending outwards from the hub; each blade having respective channels extending across a surface of the blade in a direction substantially parallel to the axis of rotation. There is also described a cutting apparatus having a rotary knife comprising a central hub adapted to be mounted with respect to a rotational driveshaft to define an axis of rotation; and a plurality of blades extending outwards from the hub; each blade having respective channels extending across a surface of the blade in a direction substantially parallel to the axis of rotation.
Claims18
A rotary knife for use in a cutting apparatus, comprising:
- a central hub adapted to be mounted with respect to a rotational driveshaft to define an axis of rotation;
- a plurality of blades extending outwards from the hub;
- each blade having respective channels extending across a surface of the blade in a direction substantially parallel to the axis of rotation;
- each channel having a centre that is substantially perpendicular to the axis of rotation and that divides each channel into two portions;
- and
- each channel having a width that varies along the length of the channel, wherein the width of the channels decreases towards the centre of the channels.
A rotary knife for use in a cutting apparatus, comprising:
- a central hub adapted to be mounted with respect to a rotational driveshaft to define an axis of rotation;
- a plurality of blades extending outwards from the hub;
- each blade having respective channels extending across a surface of the blade in a direction substantially parallel to the axis of rotation;
- and
- each blade having a respective first end that is free and a respective second end that merges with the hub, wherein each blade is arcuate between the first end and the second end, and the arc of each blade is concave.
A rotary knife for use in a cutting apparatus, comprising:
- a central hub adapted to be mounted with respect to a rotational driveshaft to define an axis of rotation;
- a plurality of blades extending outwards from the hub;
- each blade having respective channels extending across a surface of the blade in a direction substantially parallel to the axis of rotation;
- each blade having a respective first end that is free and a respective second end that merges with the hub;
- and
- each blade having a substantially V-shaped profile when viewed from the respective free end.
A rotary knife for use in a cutting apparatus, comprising:
- a central hub adapted to be mounted with respect to a rotational driveshaft to define an axis of rotation;
- a plurality of blades extending outwards from the hub;
- each blade having respective channels extending across a surface of the blade in a direction substantially parallel to the axis of rotation;
- each channel having a centre that is substantially perpendicular to the axis of rotation and that divides each channel into two portions;
- and
- each channel having a depth that varies along the length of the channel, wherein the depth of the channels decreases towards the centre of the channels.
A rotary knife for use in a cutting apparatus, comprising:
- a central hub adapted to be mounted with respect to a rotational driveshaft to define an axis of rotation;
- a plurality of blades extending outwards from the hub;
- each blade having respective channels extending across a surface of the blade in a direction substantially parallel to the axis of rotation;
- each channel having a width that varies along the length of the channel;
- and
- wherein the channels on each blade are radially offset from the channels on adjacent blades.
Dependencies are inferred from the claim text.