Method of manufacturing an electronically heated, over-molded hose and fluidic fitting assembly
AssigneeMJM Industries, Inc.
InventorsEric S. Wachob, Steven H. Porath, James A. Strubbe
Life of this patent
Estimating the term…
Abstract
An electrically heated, over-molded fluidic hose and fitting assembly includes a length of electrically heated hose comprising an inner tube, heating wire wrapped around the inner tube, and an outer jacket covering at least a portion of the heating wires over the inner tube, the heating wires extending beyond the end of the hose. A fluidic fitting is provided in the end of the hose, the extending heating wires wrapped around the fitting, and at least a portion of the heating wires around the fluidic fitting are encapsulated in a first over-mold. Optionally, the first over-mold may be at least partially encapsulated within a second over-mold.
Claims20
A method of producing an electrically heated, over-molded hose and fitting assembly comprising:
- providing a length of electrically heated hose comprising an inner tube, heating wire wrapped around the inner tube, and an outer jacket covering the heating wires;
- exposing a length of heating wire from the hose;
- inserting a fluidic fitting into an end of the hose;
- wrapping the exposed heating wires around the fitting;
- and
- encapsulating at least a portion of the heating wires around the fluidic fitting in a first over-mold cavity forming a first overmolded layer over a predetermined portion of the fluidic fitting and heating wires with a first polymeric material,
- where the step of encapsulating includes compressively sealing around the hose adjacent the first over-mold cavity forming a material shut-off substantially preventing the first polymeric material from passing thereby.
A method of producing an electrically heated, over-molded hose and fitting assembly comprising:
- providing a length of electrically heated hose comprising an inner tube, heating wire wrapped around the inner tube, and an outer jacket covering the heating wires;
- exposing a length of heating wire from the hose;
- inserting a fluidic fitting into an end of the hose;
- wrapping the exposed heating wires around the fitting;
- p1 encapsulating at least a portion of the heating wires around the fluidic fitting in a first over-mold cavity forming a first overmolded layer over a predetermined portion of the fluidic fitting and heating wires with a first polymeric material;
- and
- encapsulating at least a portion of the first overmolded layer in a second over-mold cavity providing a second overmolded layer of a second polymeric material over a predetermined portion of the hose and fitting assembly.
Dependencies are inferred from the claim text.