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US 6,616,506 B1Granted
Inserted molded traction tire for a model toy train
AssigneeLionel L.L.C.
InventorsJames G. Morrison, Robert A. Grubba
Life of this patent
Estimating the term…
Abstract
The present invention provides a wheel assembly for a model toy train wherein the wheel assembly includes a wheel and a traction tire. The wheel including an undercut recess and at least one sprue. The traction tire is molding into the undercut recess through the sprue.
Claims18
A model toy train wheel assembly comprising:
- a model toy train wheel including an undercut recess having a channel with at least first and second opposing surfaces accessible by at least one sprue;
- and
- a traction tire over molded into the channel of the undercut recess and the at least one sprue.
A method for manufacturing a wheel assembly for a model toy train comprising:
- providing a model toy train wheel including an undercut recess having a channel with at least first and second opposing surfaces accessible by at least one sprue;
- and
- over molding a traction tire into the channel of the undercut recess and the at least one sprue.
A model toy train wheel assembly comprising:
- a model toy train wheel including an undercut recess having a channel with at least first and second opposing surfaces accessible by at least one sprue, the wheel also including a frustum portion wherein a narrowest circular cross-section of the frustum portion is closer to the undercut recess than a widest circular cross-section of the frustum portion;
- and
- a traction tire over molded into the channel of the undercut recess and the at least one sprue.
Dependencies are inferred from the claim text.