A TOOL WITH VIBRATION DAMPENING MEANS - IZARD IRWIN INTERNAT LTD

Title:

A TOOL WITH VIBRATION DAMPENING MEANS

Document Type and Number:

WIPO Patent Application WO2003041920

Kind Code:

A3

Abstract:

A rotating tool such as a saw blade has a substantially planar body with a mounting arrangement at the centre of the planar body. A plurality of cutting elements are distributed around the periphery of the body. At least one energy absorbing crack penetrates the body. The energy absorbing crack has opposed crack faces with the faces touching along substantially the entire length of the crack. Each crack ends, at each end, at a crack arresting feature. The cracks may be formed by a full or partial shearing action followed by forcing back into alignment.

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Inventors:

MINTON DENIS JOHN (NZ)
RICE KIERAN JAMES (NZ)
PRUJEAN HAYDEN GEOFFREY (NZ)
WALTON BARRY (NZ)
MOLTZER EDUARD OCTAVIAN (NZ)
KELLY MICHAEL JOHN (NZ)
COWPLAND PAUL (NZ)
KING MARCUS JAMES (NZ)
LE-NGOC LAN (NZ)

Application Number:

PCT/NZ2002/000247

Publication Date:

February 26, 2004

Filing Date:

November 13, 2002

Export Citation:

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Assignee:

IZARD IRWIN INTERNAT LTD (NZ)
MINTON DENIS JOHN (NZ)
RICE KIERAN JAMES (NZ)
PRUJEAN HAYDEN GEOFFREY (NZ)
WALTON BARRY (NZ)
MOLTZER EDUARD OCTAVIAN (NZ)
KELLY MICHAEL JOHN (NZ)
COWPLAND PAUL (NZ)
KING MARCUS JAMES (NZ)
LE-NGOC LAN (NZ)

International Classes:

B23D47/00; B23D61/02; B23D65/00; (IPC1-7): B27B5/38; B21J5/06; B21J9/02; B21K1/36; B21K5/12; B27B33/08

Domestic Patent References:

WO1987005556A1

1987-09-24

Foreign References:

DE3310247A1	1984-10-04
US4794835A	1989-01-03
EP0958907A2	1999-11-24
EP0819491B1	1999-07-28

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