Window frame and method of producing it
1. Field of the Invention A window frame is formed of a plurality of plastic section pieces welded together at their ends. The ends of the plastic section pieces also have surfaces which abut one another. The plastic section pieces are not welded at the abutting surfaces. The unwelded abutting surfa...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | 1. Field of the Invention
A window frame is formed of a plurality of plastic section pieces welded together at their ends. The ends of the plastic section pieces also have surfaces which abut one another. The plastic section pieces are not welded at the abutting surfaces. The unwelded abutting surfaces can therefore be used to define the length of the window frame. |
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