US PATENT SUBCLASS 249 / 83
UNITING PREFORM WITH MOLDING MATERIAL

Current as of: June, 1999
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249 /   HD   STATIC MOLDS

83UNITING PREFORM WITH MOLDING MATERIAL {9}
84  DF  .~> Preform functions as partition means
85  DF  .~> Preform supported by partition and preform projects within mold cavities
86  DF  .~> Rail or railway type preform
87  DF  .~> Lining or coating a machine type-bearing or friction surface, e.g., babbitting {1}
89  DF  .~> Pipe bell uniting to male end of pipe
90  DF  .~> Mold supported by and girdles preform
91  DF  .~> Including means other than mold surface to support preform {2}
95  DF  .~> Split mold clamps and supports preform
96  DF  .~> Preform supported by hole or recess in mold wall or surface {1}

DEFINITION

Classification: 249/83

(under the class definition) Molding apparatus under section I-5 of the ... for uniting a preform with a plastic material during the molding operation to form a composite product.

(1) Note. To be included in this and indented subclasses the preform must be disclosed as a desired element of the product. Patents from subclasses 1+ are ordinarily not cross-referenced here.

SEE OR SEARCH THIS CLASS, SUBCLASS:

13+, for uniting a preform with moldable material for forming a building structure.

54, for uniting of a preform of a dental product to a plastic material.

56, for molding apparatus for uniting a preform with a plastic material to form to a vehicular wheel. SEE OR SEARCH CLASS

65, Glass Manufacturing,

47+, and 156 for process and apparatus of fusion bonding glass to a preform by a molding operation.

264, Plastic and Nonmetallic Article Shaping or Treating: Processes,

229, for a process of pre-stressing a solid body and uniting it with a moldable material; subclasses 241+ for a process of forming a composite article and subclasses 259+ for process of shaping material and uniting it to a preform.

425, Plastic Article or Earthenware Shaping or Treating: Apparatus,

110+, for composite article molding apparatus including means to feed or support a preform within a molding cavity.