Ledge forming system for producing a conjunct nozzle
OwnerBrian Leonard Verrilliinventor
Life of this patent
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Abstract
A novel ledge forming system used to attach a polymer retention hub to a thin wall nozzle core to provide an efficient way to produce a conjunct nozzle. The inventive apparatus provides a means for assembly of components by a method involving use of a press with a heating element to elevate temperature of a thermoplastic polymer to permit formation of a ledge that overhangs the flange of a nozzle core, mechanically locking components together. Execution of the process is rapid, low cost and eliminates damage to the thin wall of the core that would occur if the polymer retention hub were molded around the nozzle core.
Claims20
A forming tool apparatus for a press having a heating element, comprising:
- a) a cylindrical housing with a deep counter-bore on one end having a shallow circular depression opposite end of said deep counter-bore and a small diameter hole through a wall in-between each end that separates said deep counter-bore end from said shallow circular depression end;
- b) a button with a large diameter side and a small diameter side slideably fit inside said deep counter-bore end and into said small diameter hole;
- c) a force compliant member fit inside said deep counter-bore end presses against said button on said large diameter side;
- d) a threaded cap fit into said deep counter-bore end pushes against said force compliant member;
- and
- e) a support block below that contains a nest having a through hole located in center of said nest, said nest further includes, a concave shaped cavity having sides that are adjacent to a cross sectional profile shape established by a square shape cross section and wherein shaped geometry other than said square shape cross section used to establish said lower portion entails configuration of said concave adjacent sides of said nest to said cross sectional profile shape of said shaped geometry other than said square shape cross section.
A ledge form tool apparatus fora press having a heating element, comprising:
- a) a thermally conductive hollow cylindrical housing contiguously attachable to said heating element to provide a heated hollow cylinder on said press, said heated hollow cylinder has a shallow circular depression on one end;
- b) a shut-off button having a large diameter and a small diameter that has a close clearance slidable fit in a small diameter hole located through said shallow circular depression;
- c) a deep counter-bore end having a force compliant member sandwiched between a threaded cap and said large diameter of said shut-off button;
- and
- d) a support block having a nest suitably sized, positioned in said press, said nest further includes, a concave shaped cavity having sides that are adjacent to a cross sectional profile shape established by a square shape cross section and wherein shaped geometry other than said square shape cross section used to establish said lower portion entails configuration of said concave adjacent sides of said nest to said cross sectional profile shape of said shaped geometry other than said square shape cross section.
A ledge form tool apparatus comprising:
- a) a block with a counter bore with a nest that further includes, a concave shaped cavity having sides that are adjacent to a cross sectional profile shape established by a square shape cross section and wherein shaped geometry other than said square shape cross section used to establish said lower portion entails configuration of said concave adjacent sides of said nest to said cross sectional profile shape of said shaped geometry other than said square shape cross section;
- b) a thermally conductive hollow cylindrical housing made of metal centered over said counter bore that contains a force compliant member situated between a threaded cap and a button made of non-thermally conductive material;
- c) a shallow circular depression surrounding a small diameter hole for fit of said button on end of said thermally conductive cylindrical housing opposite;
- said threaded cap;
- and
- d) a source of controlled heat.
Dependencies are inferred from the claim text.