TREA

Sealing rings for ventilation ducts

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Information

  • Patent Grant
  • D447223
  • Patent Number
    D447,223
  • Date Filed
    Wednesday, May 5, 1999
    25 years ago
  • Date Issued
    Tuesday, August 28, 2001
    23 years ago
  • US Classifications
    Field of Search
    • US
    • D23 269
    • D23 259
    • 029 148
    • 029 446
    • 277 165
    • 277 207 A
    • 277 DIG 23
    • 277 227
    • 267 182
    • 285 231
  • International Classifications
    • 2301
    • Term of Grant
      14Years
Information
Abstract
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.
Priority Claims (2)
Number Date Country Kind
98-2181 Nov 1998 SE
98-2182 Nov 1998 SE
US Referenced Citations (32)
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D. 285247 Jörnhagen Aug 1986
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Number Date Country
2840962 Apr 1979 DE
150025B Nov 1986 DK
150025 B Nov 1986 DK
0 092881 A2 Apr 1983 EP
0 092 881 A2 Nov 1983 EP
0 273 221 B1 Dec 1987 EP
0 389 462 A1 Mar 1990 EP
0 758 066 A1 Feb 1997 EP
201.015.241 Apr 1970 FR
2.015.241 May 1970 FR
317678 Aug 1929 GB
442.751 Feb 1936 GB
01285018 Mar 1996 IT
174861 Apr 1994 NO
174861 B Apr 1994 NO
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54 563 Nov 1993 SE
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DM026 504 Jun 1993 XH
Non-Patent Literature Citations (4)
Entry
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”.