Method of making ventilation apparatus

Details Method of making ventilation apparatus Method of making ventilation apparatus

1982-11-26

1984-07-24

Moon, Charlie T.

Metal working

Method of mechanical manufacture

Assembling or joining

29510, 29516, 52302, 98 42R, B21D 3900, B23P 1100

Patent

active

044610661

ABSTRACT:
A unitary, metal vent apparatus for securement to the roof of a building. The apparatus includes a one-piece hollow first member having a series of vent holes near its top portion. The apparatus also includes a one-piece second member which forms a concentric cap for the first member and which protects the upper portion of the first member from the elements, but does not impair or contact the vent holes. Preferably, the cap is spun onto the first member for rigid securement thereto.

REFERENCES:
patent: 1698164 (1929-01-01), Mallory
patent: 1830695 (1931-11-01), Gagnon
patent: 2264060 (1941-11-01), Whyte
patent: 3238862 (1966-03-01), Smith et al.
patent: 3262668 (1966-07-01), Luker
patent: 3475885 (1969-11-01), Kline
patent: 3545070 (1970-12-01), Bauer
patent: 3593478 (1971-07-01), Mason

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