Patents Assigned to I.B. Goodman Manufacturing Co., Inc.
  • Patent number: 6467526
    Abstract: A method of molding a jewelry ring having a beveled or rounded inner diameter and a hollow portion in a vertical mold comprises utilizing a multi-piece plug and a soluble insert in a mold to define a mold cavity in the desired shape of the ring or a portion of the ring. A molten material is introduced into the mold cavity and upon hardening forms a ring replica which is removed from the mold by first removing the formed ring replica from the mold halves and then removing the ring replica from the multi-piece plug by separating the multi-piece plug into its individual pieces. The ring replica can be used to form jewelry rings by investment casting.
    Type: Grant
    Filed: October 23, 2000
    Date of Patent: October 22, 2002
    Assignee: I.B. Goodman Manufacturing Co., Inc.
    Inventor: Steven Cope