Ventilation apparatus and methods of making and using same

Details Ventilation apparatus and methods of making and using same Ventilation apparatus and methods of making and using same

1985-10-28

1986-11-18

Yuen, Henry C.

Pipe joints or couplings

With casing, lining or protector

Insulated

98 4201, 52198, 2853822, F23L 1702

Patent

active

046228870

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.

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