Sealing rings for ventilation ducts

Details Sealing rings for ventilation ducts Sealing rings for ventilation ducts

1999-05-05

2001-08-28

Zarfas, Louis S. (Department: 2914)

Environmental heating and cooling; fluid handling and sanitary e

Fluid handling or treatment equipment

Fitting

Design Patent

active

D0447223

CLAIM:
The ornamental design for sealing rings for ventilation ducts, as shown.

REFERENCES:
patent: D. 285247 (1986-08-01), Jörnhagen
patent: D. 342567 (1993-12-01), Boen
patent: D. 347885 (1994-06-01), Gustafsson
patent: D. 351459 (1994-10-01), Andersson
patent: D. 362902 (1995-10-01), Reiber
patent: D. 371189 (1996-06-01), Dharamsi et al.
patent: D. 379493 (1997-05-01), Woods
patent: D. 380039 (1997-06-01), Sutherland et al.
patent: 904199 (1908-11-01), Harris
patent: 1306476 (1919-06-01), Frey
patent: 2314386 (1943-03-01), Brend
patent: 2469516 (1949-05-01), Pearson
patent: 2533742 (1950-12-01), Poltorak
patent: 2547185 (1951-04-01), Von Bolhar
patent: 2777715 (1957-01-01), Beyer
patent: 3015510 (1962-01-01), Bates
patent: 3174761 (1965-03-01), Workman
patent: 3544119 (1970-12-01), Glover
patent: 3768819 (1973-10-01), Bürkert
patent: 3955834 (1976-05-01), Ahlrot
patent: 4050703 (1977-09-01), Tuvesson et al.
patent: 4193426 (1980-03-01), Irmer
patent: 4216981 (1980-08-01), Jensen
patent: 4369159 (1983-01-01), Irmer
patent: 4579354 (1986-04-01), Vassallo et al.
patent: 4664421 (1987-05-01), Jones
patent: 4666165 (1987-05-01), Nordin
patent: 4998740 (1991-03-01), Tellier
patent: 5002290 (1991-03-01), Pernin
patent: 5007202 (1991-04-01), Guillon
patent: 5407122 (1995-04-01), Stefansson et al.
patent: 5531460 (1996-07-01), Stefansson et al.
patent: 2840962 (1979-04-01), None
patent: 150025B (1986-11-01), None
patent: 150025 B (1986-11-01), None
patent: 0 092881 A2 (1983-04-01), None
patent: 0 092 881 A2 (1983-11-01), None
patent: 0 273 221 B1 (1987-12-01), None
patent: 0 389 462 A1 (1990-03-01), None
patent: 0 758 066 A1 (1997-02-01), None
patent: 201.015.241 (1970-04-01), None
patent: 2.015.241 (1970-05-01), None
patent: 317678 (1929-08-01), None
patent: 442.751 (1936-02-01), None
patent: 01285018 (1996-03-01), None
patent: 174861 (1994-04-01), None
patent: 174861 b (1994-04-01), None
patent: 7415594-6 (1976-02-01), None
patent: 58/77 (1977-07-01), None
patent: 77-0067 (1977-07-01), None
patent: 77-0068 (1978-07-01), None
patent: 54 563 (1993-11-01), None
patent: 54 562 (1993-11-01), None
patent: 54 561 (1993-11-01), None
patent: WO 94/15133 (1994-07-01), None
patent: DM/026 504 (1993-06-01), None
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”.

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