Metal deforming – By deflecting successively-presented portions of work during... – With cutting of work or product
Reexamination Certificate
2005-02-03
2010-02-02
Ross, Dana (Department: 3725)
Metal deforming
By deflecting successively-presented portions of work during...
With cutting of work or product
C072S130000, C029S596000
Reexamination Certificate
active
07654123
ABSTRACT:
The present invention provides a method and machine for producing a slotted wound core (50). The machine includes a punch arrangement (16) arranged to punch apertures in a length of material (12a), a mandrel (22) for receiving the punched material, a control means and a mandrel indexing means. The positioning of the punch arrangement (16) and the mandrel (22) is fixed and the mandrel (22) is arranged to be rotated by the mandrel indexing means after each operation of the punch arrangement so that a roll of punched material is formed on the mandrel (22). The mandrel (22) is rotated by an amount (&ggr;) determined by the control means. The control means determines the indexed amount so that selected apertures punched in the length of material align with one another when the material (12a) is rolled onto the mandrel (22) so that the aligned apertures form respective slots (52) of a desired configuration in the core (50).
REFERENCES:
patent: 2356972 (1944-08-01), Chubbuck
patent: 3283399 (1966-11-01), Hart et al.
patent: 4320645 (1982-03-01), Stanley
patent: 4403489 (1983-09-01), Munsterman et al.
patent: 4909057 (1990-03-01), Fritzsche
patent: 0046310 (1982-02-01), None
patent: 1352581 (1974-05-01), None
patent: 1791907 (1993-01-01), None
Camilleri Steven Peter
Embery Lyell Douglas
Patterson Dean James
Armstrong Teasdale LLP
In Motion Technologies Pty. Ltd.
Ross Dana
Sullivan Debra M
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