Gear cutting – milling – or planing – Milling – Machine frame
Reexamination Certificate
2007-05-29
2007-05-29
Cadugan, Erica (Department: 3722)
Gear cutting, milling, or planing
Milling
Machine frame
C409S231000, C409S141000, C408S234000, C408S143000, C408S23900A, C248S637000
Reexamination Certificate
active
10727933
ABSTRACT:
A support structure or sleeve for the spindle of a machine tool consists of a tubular casing, preferably made of sheet steel with a high modulus of elasticity, in contact with a layer of agglomerate obtained by casting inside the casing a mixture formed by a granulate of stone and/or ceramic and/or expanded clay material as well as a synthetic resin of the hardening type, which is subject to cross-linking. The structure thus obtained combines a high vibration damping factor with an excellent mechanical strength and a reduced weight. The structure may also comprise a second casing which is located inside the layer of agglomerate and in contact therewith. The mass of agglomerate may also have, embedded in it, pipes for circulation of a cooling fluid in order to dispose of the heat produced by the spindle during operation.
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International Search Report dated Aug. 27, 2003.
Dr-Ing. Rudolf-Georg Nicklau, Massing, Use of Resin-Containing Cement Conglomerate in the Construction of Machine Tools, pp. 537-542, 1987.
Cadugan Erica
Katten Muchin & Rosenman LLP
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