Appeal No. 2005-0874 Application No. 10/320,073 APPENDIX 22. A method for regulating heat generated by a rotary spindle assembly comprising inputting a temperature signal generated by a temperature sensor and controlling a fluid source as a function of said temperature signal, wherein said rotary spindle assembly comprises: a rotary drive motor; a rotary spindle coupled to said rotary drive motor, said rotary spindle defining a lower spindle area and an upper spindle area; and a heat regulating element arranged about said rotary spindle and comprising a regulating element frame defining a fluid inlet and a fluid outlet and a fluid conduit extending from said fluid inlet to said fluid outlet, wherein said fluid source is coupled to said fluid conduit, said fluid conduit defines a substantially cylindrical heat regulation void, said temperature sensor is coupled to said rotary spindle assembly, said heat regulation void defines an inside diameter selected to accommodate an outside diameter of said rotary spindle and a circumferential gas flow path between said rotary spindle and said fluid conduit, said heat regulating element defines an open framework arranged about said rotary spindle such that upper and lower ends of said heat regulating element are open to said substantially cylindrical heat regulation void from said lower spindle area to said upper spindle area; and dimensions of said cylindrical heat regulation void defined by said heat regulating element are established so as to permit flow of exhaust gases from said lower A1Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 NextLast modified: November 3, 2007