Apparatus and Method for Forming a Screw Flight
AssigneeAdvanced Spiral Technology Pty Limited
InventorGregory John Bloxham
Life of this patent
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Abstract
This invention relates to an apparatus for forming a helical screw flight from a flight blank. The apparatus includes a base and an engaging means. The engaging means is movably mounted to the base and is configured to formingly engage the blank so as to form a twist in at least a portion of the flight blank corresponding to a predetermined pitch of the flight.
Claims18
An apparatus for forming a helical screw flight from a flight blank, the apparatus including:
- a base;
- and
- engaging means movably mounted to the base, the engaging means being configured to formingly engage the blank so as to form a twist in at least a portion of the flight blank substantially corresponding to a predetermined pitch of the flight.
An apparatus according to any one of the preceding claims, wherein the engaging means includes secondary engaging means for engaging the blank at at least one position in between the primary engaging means.
A method of forming a helical screw flight, the method including:
- providing a flight blank of a predetermined size;
- and
- formingly engaging the blank so as to form a twist in at least a portion of the flight blank, the twist substantially corresponding to a predetermined pitch of the flight.
A method of setting up an apparatus for forming a helical screw flight from a flight blank, the method including:
- securing a central engaging means to the apparatus;
- aligning a set up device with the central engaging means;
- securing the set up device to the central engaging means in the aligned position;
- determining a position for mounting side engaging means relative to the central engaging means with the set up device;
- and
- securing the side engaging means to the apparatus at the determined position.
Dependencies are inferred from the claim text.