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US 9,943,991 B2Granted
Mold with separable features
AssigneeAlign Technology, Inc.
InventorsRohit Tanugula, Dennis Te, Peter Webber, Shiva P. Sambu, Crystal Tjhia
Life of this patent
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Abstract
A mold comprises a main body and a separable feature. One or more weakened regions join the separable feature to the main body. The one or more weakened regions are breakable to enable the main body to be removed from a shell independently of the separable feature after the shell is formed over the mold.
Claims10
A method comprising:
- forming a shell over a mold comprising a separable feature, wherein the separable feature of the mold is joined to a main body of the mold by one or more first weakened regions, wherein the main body comprises a first section joined to a second section by one or more second weakened regions;
- separating the separable feature from the main body of the mold at the one or more first weakened regions;
- at least partially separating the first section from the second section at the one or more second weakened regions;
- removing the separable feature of the mold from the shell;
- separately removing the first section of the main body of the mold from the shell;
- and
- separately removing the second section of the main body of the mold from the shell.
4 more elements
Dependencies are inferred from the claim text.