Sealing rings for ventilation ducts
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Description
FIG. 1 is a perspective view of a sealing ring according to a first embodiment of the new design, as seen obliquely from one side.
FIG. 2 is a cross-sectional view of the sealing ring of FIG. 1 shown on an enlarged scale.
FIG. 3 is a perspective view of a sealing ring according to a second embodiment of the new design, as seen obliquely from one side; and,
FIG. 4 is a cross-sectional view of the sealing ring of FIG. 3 shown on an enlarged scale.
Claims
The ornamental design for sealing rings for ventilation ducts, as shown.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
Other references
D285247 | August 19, 1986 | Jörnhagen |
D342567 | December 21, 1993 | Boen |
D347885 | June 14, 1994 | Gustafsson |
D351459 | October 11, 1994 | Andersson |
D362902 | October 3, 1995 | Reiber |
D371189 | June 25, 1996 | Dharamsi et al. |
D379493 | May 27, 1997 | Woods |
D380039 | June 17, 1997 | Sutherland et al. |
904199 | November 1908 | Harris |
1306476 | June 1919 | Frey |
2314386 | March 1943 | Brend |
2469516 | May 1949 | Pearson |
2533742 | December 1950 | Poltorak |
2547185 | April 1951 | Von Bolhar |
2777715 | January 1957 | Beyer |
3015510 | January 1962 | Bates |
3174761 | March 1965 | Workman |
3544119 | December 1970 | Glover |
3768819 | October 1973 | Bürkert |
3955834 | May 11, 1976 | Ahlrot |
4050703 | September 27, 1977 | Tuvesson et al. |
4193426 | March 18, 1980 | Irmer |
4216981 | August 12, 1980 | Jensen |
4369159 | January 18, 1983 | Irmer |
4579354 | April 1, 1986 | Vassallo et al. |
4664421 | May 12, 1987 | Jones |
4666165 | May 19, 1987 | Nordin |
4998740 | March 12, 1991 | Tellier |
5002290 | March 26, 1991 | Pernin |
5007202 | April 16, 1991 | Guillon |
5407122 | April 18, 1995 | Stefansson et al. |
5531460 | July 2, 1996 | Stefansson et al. |
2840962 | April 1979 | DE |
150025B | November 1986 | DK |
150025 B | November 1986 | DK |
0 092881 A2 | April 1983 | EP |
0 092 881 A2 | November 1983 | EP |
0 273 221 B1 | December 1987 | EP |
0 389 462 A1 | March 1990 | EP |
0 758 066 A1 | February 1997 | EP |
201.015.241 | April 1970 | FR |
2.015.241 | May 1970 | FR |
317678 | August 1929 | GB |
442.751 | February 1936 | GB |
01285018 | March 1996 | IT |
174861 | April 1994 | NO |
174861 b | April 1994 | NO |
7415594-6 | February 1976 | SE |
58/77 | July 1977 | SE |
77-0067 | July 1977 | SE |
77-0068 | July 1978 | SE |
54 563 | November 1993 | SE |
54 562 | November 1993 | SE |
54 561 | November 1993 | SE |
WO 94/15133 | July 1994 | WO |
DM/026 504 | June 1993 | XH |
- Veloduct® Cirkulärt kanalsystem, Produktkatalog 1997, ABB Ventilation Products AB Division Veloduct pamphlet.
- “Sistema Di Tnenuta Ring”, issued by Climovent Ssytem, an Italian Company no date.
- “Veloduct” catalog 1977, ABB Ventilation Products AB, Division Veloduct.
- Van Huffel Catalog L-56, “Where Ideas Take Shape”.
Patent History
Patent number: D447223
Type: Grant
Filed: May 5, 1999
Date of Patent: Aug 28, 2001
Assignee: Lindab AB (Bastad)
Inventors: Lars-Ake Mattsson (Bastad), Pontus Andersson (Angelholm), Kenneth Lennartsson (Torekov), Tomas Persson (Munka Ljungby)
Primary Examiner: Louis S. Zarfas
Assistant Examiner: Robert A. Delehanty
Attorney, Agent or Law Firm: Weingarten, Schurgin, Gagnebin & Hayes LLP
Application Number: 29/104,424
Type: Grant
Filed: May 5, 1999
Date of Patent: Aug 28, 2001
Assignee: Lindab AB (Bastad)
Inventors: Lars-Ake Mattsson (Bastad), Pontus Andersson (Angelholm), Kenneth Lennartsson (Torekov), Tomas Persson (Munka Ljungby)
Primary Examiner: Louis S. Zarfas
Assistant Examiner: Robert A. Delehanty
Attorney, Agent or Law Firm: Weingarten, Schurgin, Gagnebin & Hayes LLP
Application Number: 29/104,424
Classifications