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US 2022/0080677 A1Published application
Welder for laminates with dissimilar welding surfaces
AssigneeOwens Corning Intellectual Capital, LLC
InventorWeigang QI
Life of this patent
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Abstract
A welder for joining two polymeric sheets together using a wedged heating element allows for a heating profile on opposite faces of the heating element to be varied by controlling where each of the polymeric sheets contacts the corresponding face.
Claims11
A method of joining a first polymeric sheet and a second polymeric sheet together by thermal bonding, the method comprising:
- providing a wedge-shaped heating element having a first face defining a first heating length extending from a first point to a second point and a second face defining a second heating length extending from a third point to a fourth point;
- conveying the first polymeric sheet to the first face of the heating element so that the first polymeric sheet travels less than the first heating length;
- and
- conveying the second polymeric sheet to the second face of the heating element so that the second polymeric sheet travels the second heating length.
1 more element
Dependencies are inferred from the claim text.