Heated Build Chamber Patents
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https://patents.google.com/patent/US6722872B1/en
Patent appears to protect a motion system EXTERNAL to a heated build chamber, AND a deformable insulator.
the x-y-z gantry (18, 20) is located external to the build chamber (24) and is separated from the chamber (24) by a deformable thermal insulator (132, 136).
Thus the questions are:
Is a non-deformable insulator as in OSE Prior Art of High Temperature Heated Enclosure also covered by the patent?