B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
18/52
B29C 39/10 (2006.01)
Patent
CA 1308529
Abstract of the Disclosure A compression molding apparatus for forming a plastic grip ring and simultaneously linking it integrally to a linking protruding piece of a container closure body. The apparatus includes a mold composed of a first mold portion and a second mold portion adapted to be opened or closed by being moved relative to each other in a predetermined direction. The first mold portion has an accommodating space for receiving the closure body and a first mold cavity extending in a ring-like shape. At least the free end portion of the linking protruding piece of the closure body to be received in the accommodating space is projected into the first mold cavity. The second mold portion has a main part consisting of a second mold cavity extending in a ring-like shape and a conduit hole extending in said predetermined direction from the second mold cavity and a compression rod to be slidably inserted into the conduit hole. A plastic material fed into the conduit hole is compressed by the compression rod and molded into the gripring having a shape corresponding to a molding space defined by the cooperation of the first and second mold cavities.
608769
Murayama Kashiwa
Utsunomiya Nobu
Marks & Clerk
Toyo Seikan Kaisha Ltd.
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