Static ventilator including a corrugated portion

Details Static ventilator including a corrugated portion Static ventilator including a corrugated portion

1998-11-27

2000-12-26

Joyce, Harold

Metal working

Method of mechanical manufacture

Gas and water specific plumbing component making

29890145, 29564, 285 44, 454270, 454366, F24F 702

Patent

active

061639605

ABSTRACT:
A static ventilator provided with a deformable corrugated portion is described herein. The static ventilator is provided with a tubular base to be installed to the roof, a sleeve to be connected to the tubular base and a cover to be installed to the free end of the sleeve. The tubular base is provided with a deformable corrugated portion enabling the tubular base to be installed to a sloping roof while allowing the sleeve to be positioned and maintained in a generally vertical orientation. The present invention is also concerned with a method for forming a tubular base for static ventilator provided with a corrugated portion.

REFERENCES:
patent: 454647 (1891-06-01), Hallas
patent: 1317574 (1919-09-01), Grosvold
patent: 1648046 (1927-11-01), Fulton
patent: 3731952 (1973-05-01), Elwart
patent: 5080007 (1992-01-01), Maheu

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