Mold for dental models base
AssigneeKV33 Corporation
InventorRonald E. Huffman
Life of this patent
Estimating the term…
Abstract
A mold for the base of a dental model includes index means cooperative with a dental model articulator, detachable perimeter members for defining the side walls of the base and an insert for delineating a platform upon which a tooth die is attached. The insert is reversably mountable to accommodate relocation of the platform as a right or left quadrant. A variant includes a flexible rubber mold which defines a quadrant or a full base, each including index means and having a platform for supporting the respective tooth die. Forms for making the flexible molds are also described.
Claims17
A disassembleable mold for forming the tooth die supporting base of a dental model upon curing of a pourable hardenable compound deposited therein, said mold comprising in combination:
- (a) a substructure having guide means attached thereto;
- (b) a sidewall member defining a portion of the perimeter of said mold;
- (c) a removable insert member cooperating with said guide means, said insert member cooperating with said sidewall member to define with said substructure a mold cavity therebetween;
- (d) said insert member having a projection extending within the mold cavity at a height substantially that of said sidewall member and suitable for forming a recess within the base and for delineating a platform for supporting the tooth die of the dental mold;
- and
- (e) means for indexing the base.
A flexible mold for forming the base of a dental model from a pourable hardenable compound deposited therein, said mold comprising in combination:
- (a) a flexible sidewall defining the perimeter of a mold cavity;
- (b) a substrate, said substrate and said sidewall member cooperating to define a mold cavity;
- and
- (c) a single overhanging shelf attached to a limited portion of said sidewall extending within said perimeter and only partially across said cavity to form a recess within the base and to delineate a platform for supporting a tooth die of the dental model, said shelf being substantially at a height corresponding to the upper edge of said sidewall.
Apparatus for making a flexible mold having a shelf portion extending over a cavity therein, the mold being suitable for forming a dental mold base and which base is suitable for supporting a tooth die, said apparatus comprising in combination:
- (a) a substructure,
- (b) a side wall member attachable to said substructure, said side wall member and said substructure in combination defining a mold cavity for forming the flexible mold;
- and
- (c) an insert member attachable within the mold cavity to said substructure, said insert member having a support portion and an overhanging portion, said overhanging portion of said insert member having two opposed generally flat surfaces and index means disposed on one of said generally flat surfaces in at least two local regions and said index means deviating from the plane of said one flat surface, said index means being suitable for forming indices in the flexible mold, the other of said generally flat surfaces defining the shelf portion of the flexible mold.
Dependencies are inferred from the claim text.