Rotatable supporting structure
First Claim
1. A ceramic rotatable supporting structure for use with intense heat comprising a ceramic base having a substantially planar upper surface, a ceramic pin located on the upper surface of said base extending upwardly therefrom and stationary with respect thereto, a slightly raised bearing surface completely surrounding said pin, a ceramic upper member having an opening at substantially the geographic center thereof, said opening being of a diameter slightly larger than the cross-sectional size of said pin, ceramic means for supporting a workpiece located on the upper surface of said upper member whereby the upper member may be totatably disposed on said base with said pin extending into said opening such that said upper member rotates about said pin.
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Accused Products
Abstract
A rotatable supporting structure adapted to withstand substantial intense heat and provide for the rotation of a workpiece without lateral displacement thereof during the heating of the workpiece within a furnace, including a base having a substantially planar upper surface, and a pin located on the upper surface of the base extending upwardly therefrom. The supporting structure also includes an upper member having an opening at substantially the center thereof, and of a diameter slightly larger than that of the cross sectional size of the pin. The upper member is provided with a plurality of holes or slots into which a plurality of supporting dowels may be disposed, in a variety of positions, thereby varying the space therebetween so as to support a workpiece without engaging the upper surface of the upper member and provide for the rotation thereof.
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Citations
17 Claims
- 1. A ceramic rotatable supporting structure for use with intense heat comprising a ceramic base having a substantially planar upper surface, a ceramic pin located on the upper surface of said base extending upwardly therefrom and stationary with respect thereto, a slightly raised bearing surface completely surrounding said pin, a ceramic upper member having an opening at substantially the geographic center thereof, said opening being of a diameter slightly larger than the cross-sectional size of said pin, ceramic means for supporting a workpiece located on the upper surface of said upper member whereby the upper member may be totatably disposed on said base with said pin extending into said opening such that said upper member rotates about said pin.
Specification