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US 11,207,843 B2Granted
Welder for laminates with dissimilar welding surfaces
AssigneeOwens Corning Intellectual Capital, LLC
InventorWeigang Qi
Life of this patent
Estimating the term…
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.
Claims20
A welder for joining a first polymeric sheet and a second polymeric sheet together by thermal bonding, the welder comprising:
- a heating element having a first face defining a first heating length and a second face defining a second heating length, the first heating length equal to the second heating length;
- and
- a guide plate for conveying the first polymeric sheet to the first face and the second polymeric sheet to the second face,
- wherein a portion of the guide plate covers a portion of the first face to reduce the first heating length to less than the second heating length.
1 more element
Dependencies are inferred from the claim text.