Metal deforming – With use of control means energized in response to activator... – Metal deforming by use of roller or roller-like tool element
Reexamination Certificate
2006-07-18
2006-07-18
Crane, Daniel C. (Department: 3725)
Metal deforming
With use of control means energized in response to activator...
Metal deforming by use of roller or roller-like tool element
C072S011100, C072S012700, C072S009200, C072S007600, C072S173000, C072S129000
Reexamination Certificate
active
07076979
ABSTRACT:
In a method and a device for producing curved lengths of spring band steel in order to produce precisely toleranced, dimensionally stable bending radii, the spring band steel (10) pass through a bending unit (20), which is comprised of three support points (23-25) spaced apart from one another, and passes through a reverse bending unit (22), which is disposed after the bending unit (20) in the advancing direction of the spring band steel (10) and is comprised of a fourth support point (32), and in a cutting unit (21), the curved and recurved lengths of spring band steel (11) are cut from the spring band steel (10). The central support point (24) of the bending unit (20) and the fourth support point (32) of the reverse bending unit (22) are embodied so that they can be moved and are controlled in their advancing in relation to the spring band steel (10) by means of a numerical control unit (20) in accordance with predetermined programs (FIG.1).
REFERENCES:
patent: 1489894 (1924-04-01), Monteith
patent: 2288920 (1942-07-01), Ronksley
patent: 3395846 (1968-08-01), Mille
patent: 4367641 (1983-01-01), Mizutani
patent: 4391116 (1983-07-01), Yogo
patent: 4412438 (1983-11-01), Tjushevsky et al.
patent: 4532794 (1985-08-01), Mauderer
patent: 4549422 (1985-10-01), Harrow
patent: 4918958 (1990-04-01), Glomb et al.
patent: 5010756 (1991-04-01), Node et al.
patent: 5485650 (1996-01-01), Swanepoel
patent: 5590556 (1997-01-01), Fourie et al.
patent: 5855133 (1999-01-01), Hayes
patent: 5875672 (1999-03-01), Fourie et al.
patent: 6167607 (2001-01-01), Pryor
patent: 555774 (1960-02-01), None
patent: 202717 (1966-03-01), None
patent: 743485 (1956-01-01), None
patent: 189826 (1986-08-01), None
patent: 7807040 (1980-01-01), None
patent: 0640798 (1979-01-01), None
Blum Thomas
Mazurkiewicz Julius
Troester Theo
Wilhelm Manfred
Crane Daniel C.
Robert & Bosch GmbH
Striker Michael J.
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