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US 4,050,667 AGranted
Tube mold
AssigneeWill Ross, Inc.
InventorAllen J. Kossett
Life of this patent
Estimating the term…
Abstract
A molding apparatus is described having a body portion with a mold cavity therein and a core means within said cavity having a core follower thereon which is designed to move along the core during the molding operation. Utilization of the core follower permits rapid and accurate formation of multiple lumen tubes, particularly those having arcuate shapes.
Claims7
A molding apparatus comprising:
- a. a bottom plate having a first groove therein;
- b. a top plate having a second groove therein and overlaying said bottom plate such that said first groove and said second groove define a cavity, said cavity having a downstream end and an upstream end;
- c. first core means removably mounted within said cavity and in a spaced relationship from the walls of said cavity;
- d. annular means disposed between the walls of said cavity and said first core;
- and
- e. an injection port at said downstream end of said cavity between said annular means and said downstream end whereat material injection is initiated, said annular means being slidable by means of said injection fluid along said core from a first position adjacent said injection port to a second position remrote from said first position in the direction of the upstream end of said cavity.
3 more elements
A molding apparatus comprising:
- a. a body having a cavity therein, said cavity having an upstream end and a downstream end;
- b. first core means removably mounted within said cavity in a spaced relationship from the walls of said cavity;
- c. annular means diposed within said cavity about said core;
- and
- d. an injection port at said downstream end of said cavity between said annular means and said downstream end whereat material injection is initiated, said annular means being slidable by means of said injection fluid along said core at a first position adjacent said injection port to a second position remote from said first position in the direction of the upstream end of said cavity.
2 more elements
Dependencies are inferred from the claim text.