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US 2017/0057138 A1Published application
Injection molding nozzle tip and assembly including such a tip
AssigneeInjection Mold Consulting, LLC
InventorJames Gary Fattori
Life of this patent
Estimating the term…
Abstract
An injection molding nozzle tip includes a body extending along a central axis and having a front end and a rear end. A passage extends along the axis, through the body and forms a front opening at the front end, and a rear opening at the rear end. At least one fin extends radially inwardly from an inner surface of the passage.
Claims18
An injection molding nozzle tip, comprising:
- a body extending along a central axis and having a front end and a rear end;
- a passage extending along the axis, through the body and forming a front opening at the front end, and a rear opening at the rear end;
- and
- at least one fin extending radially inwardly from an inner surface of the passage.
1 more element
An injection molding nozzle tip, comprising:
- a body extending along a central axis and having a front end and a rear end;
- a passage extending along the axis, through the body and forming a front opening at the front end, and a rear opening at the rear end;
- and
- a transition plane located along the axis and intersecting the passage;
- wherein the passage comprises a front segment located between the transition plane and the front end, and a rear segment located between the transition plane and the rear end;
- the rear segment comprises a first section located adjacent to the rear end and a second section located between the first section and the transition plane;
- the first section comprises a conical inner surface that narrows from the rear end to the second section;
- the second section comprises a curved inner surface that narrows from the first section to the transition plane;
- and
- the curved inner surface has a radial center point offset from the central axis.
7 more elements
An injection molding assembly, comprising:
- an injection mold having an inlet opening in communication with a molding cavity;
- an injection molding nozzle tip configured for engagement with the mold and having a body extending along a central axis, a front end in contact with the inlet opening and defining a front end opening, a rear end defining a rear end opening, and a passage for transmission of molding material from the rear end opening to the front end opening;
- wherein the inlet opening has an inlet opening diameter and the front end opening has a front end opening diameter;
- and the front end opening diameter is smaller than the inlet opening diameter.
1 more element
An injection molding assembly, comprising:
- an injection mold having an inlet having a concave surface and defining an inlet opening in communication with a molding cavity;
- an injection molding nozzle tip configured for engagement with the mold and having a body extending along a central axis, a front end including a nodule having a forward extending domed convex surface in contact with the inlet opening and complimentary to the concave surface, and a front end opening defined in the domed convex surface, a rear end defining a rear end opening and a passage for transmission of molding material from the rear end opening to the front end opening;
- wherein the concave surface has a standard concave surface radius, and the convex surface has a non-standard convex surface radius;
- and
- the convex surface radius is smaller than the concave surface radius.
2 more elements
An injection molding nozzle tip, comprising:
- a body extending along a central axis and having a front end and a rear end;
- a passage for transmission of molding material extending along the axis, through the body and forming a front opening at the front end, and a rear opening at the rear end;
- and
- a hexagonal section forming a plurality of wrench flats on an exterior surface of the body, wherein the hexagonal section is axially located between the front end and the rear end;
- wherein the body has a reduced mass area, formed as an area of minimum diameter and extending from the hexagonal section and the front end.
2 more elements
Dependencies are inferred from the claim text.