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US 11,938,552 B2Granted
Blank holder and blank
AssigneeIvoclar Vivadent AG
InventorsMarkus Lichtensteiger, Sven Hellmich
Life of this patent
Estimating the term…
Abstract
A blank holder and a blank are provided, the blank holder having a receiving area for a substantially disc-shaped blank, the receiving area being curved. The receiving area forms a straight, circular or part-circular or arc-shaped form-fitting profile. The blank has a matching guide shell which can be inserted or turned into the form-fitting profile.
Claims17
A blank holder and blank combination comprising
- a blank holder, and
- a disc-shaped or substantially disc-shaped blank,
- wherein the blank holder comprises a receiving area for the disc-shaped or substantially disc-shaped blank, the receiving area being curved,
- wherein the receiving area forms a part-circular or arc-shaped form-fitting profile, and
- wherein the disc-shaped or substantially disc-shaped blank comprises a part-circular guide shell that is attached to an outer circumference of the blank and which can be fitted into the form-fitting profile.
2 more elements
A method for mounting a blank on a blank holder comprising
- fixing a guide shell to an outer circumference of the blank before mounting,
- turning the blank with the guide shell into a form-fitting profile of a receiving area of the blank holder or pushing the blank in the longitudinal direction of the form-fitting profile until the blank with the guide shell engages and is fixed in a latching position against a stop.
Dependencies are inferred from the claim text.