Electric heating – Inductive heating – Specific heating application
Reexamination Certificate
2006-10-03
2006-10-03
Leung, Philip H. (Department: 3742)
Electric heating
Inductive heating
Specific heating application
C219S661000, C219S676000, C279S102000, C029S447000
Reexamination Certificate
active
07115846
ABSTRACT:
A shrinking arrangement for a tool holder is provided which retains a rotary tool with a press fit in a central accommodation opening. The arrangement includes an induction-heating arrangement for thermally expanding the tool holder in the region of the accommodating opening. The induction-heating arrangement includes an induction-coil unit which is guided on a vertical guide column such that it can be displaced with its coil axis vertical and which is connected, in particular via a flexible cable, to an induction-current generator which is fixed in relation to the column, and in that arranged on the induction-coil unit is a contact switch which can be actuated manually and by means of which the supply of induction current to the induction-coil unit can be switched on and off in a freely selectable manner at least for a limited period of time.
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International Search Report.
Haimer Franz
Haimer Josef
Kügle Wolfgang
Franz Haimer GmbH
Leung Philip H.
Rothwell Figg Ernst & Manbeck
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