Metal deforming – By relatively movable offset tool-faces – With tool motion in fixed path
Reexamination Certificate
2006-03-21
2006-03-21
Jones, David (Department: 3725)
Metal deforming
By relatively movable offset tool-faces
With tool motion in fixed path
C072S389400, C072S413000
Reexamination Certificate
active
07013698
ABSTRACT:
Bending press comprising: a stationary support structure (11), a first and a second toolholder unit (12, 13) movable relative to each other between an open position and a closed position, actuator means (14) able to command the relative motion between the toolholder units (12, 13) and to apply a bending force between the stationary structure (11) and at least one of said toolholder units (12, 13). At least one of said toolholder units (12, 13) comprises: a reaction structure (15), a precision structure (17) destined to bear a bending tool, and elastic means (198) positioned between the precision structure (17) and the reaction structure (15) and able to allow a movement of the precision structure (17) relative to the reaction structure (15) under the action of the bending load.
REFERENCES:
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patent: 3702558 (1972-11-01), Swenson et al.
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patent: 4014204 (1977-03-01), Hanni et al.
patent: 4098109 (1978-07-01), Cailloux et al.
patent: 4426873 (1984-01-01), Pearson et al.
patent: 5293972 (1994-03-01), Krumholz
patent: 10 058043 (1998-03-01), None
Jones David
Sughrue & Mion, PLLC
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