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Inventor: Hogman; Sten
Address: Grevie, SE
No. of patents: 7
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 |
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