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Inventor: Mattsson; Lars-Ake
Address: B.ang.stad, SE
No. of patents: 9
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| D475781 |
Coupling ring for ventilation ducts |
June 10, 2003 |
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| D461887 |
Coupling ring for ventilation ducts |
August 20, 2002 |
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| D456072 |
Coupling ring for ventilation ducts |
April 23, 2002 |
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| D456071 |
Coupling ring for ventilation ducts |
April 23, 2002 |
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| D454949 |
Coupling ring for ventilation ducts |
March 26, 2002 |
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| D453042 |
Coupling ring for ventilation ducts |
January 22, 2002 |
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| 6758502 |
Coupling ring for ventilation ducts, and method of connecting ventilation ducts |
July 6, 2004 |
| A flanged coupling ring for a duct element has a mounting section configured to be mounted or a connection portion of the duct element, and flange means extending outwards from the mounting section. The flange means has, along its periphery, flanged coupling portions for connecting t |
| 6655182 |
Apparatus and method for reshaping tubes |
December 2, 2003 |
| In a method of reshaping a tube, an apparatus is used which has a roller nip for rotating the tube, and a shaping roller assembly for altering the cross-section of the tube, for instance from round to oval. |
| 6170883 |
Tubular element with sealing means and a method for manufacturing the tubular element |
January 9, 2001 |
| A tubular element has a sealing ring mounted at an end of the tubular element. The sealing ring has a base clamped against the outer surface of the tubular element. Further, the sealing ring has a sealing lip adapted to seal against an inner surface of an outer tube, in which the tubular |
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