Utilizing Indefinite Length Preform Patents (Class 264/171.13)
- Natural rubber or thermosetting resin containing layer (Class 264/171.15)
- Utilizing plural metal preforms (e.g., twisted, spiral, etc.) (Class 264/171.16)
- Shaping of plural layers on preform (Class 264/171.17)
- Including upstream mixing (Class 264/171.19)
- Producing coiled or helical containing structure or layer (Class 264/171.2)
- Producing ribbon, tape, or sheet (e.g., extrusion, etc.) (Class 264/171.21)
- Including preheating of metal preform (Class 264/171.22)