Chimney closure with damper

Details Chimney closure with damper Chimney closure with damper

1977-06-09

1979-05-15

Yuen, Henry C.

Stoves and furnaces

Stoves

Cooking

126120, 126286, 126288, F23L 1702

Patent

active

041541502

ABSTRACT:
A chimney closure is disclosed having a damper which consists of a pair of contiguous generally coplanar leaf sections pivotally mounted over the open end of a chimney. The leaf sections may be pivoted back and forth with respect to the plane of the chimney opening between generally horizontal and vertical positions. One of the leaf sections opens and closes approximately half of the chimney opening. The area of the other leaf section is less than that of the one section and, therefore, it only partially obstructs the remaining part of the opening when the one section is closed. The damper is carried by a casing which surrounds the chimney opening.

REFERENCES:
patent: 1407351 (1922-02-01), Myers
patent: 1946008 (1934-02-01), White
patent: 2665683 (1954-01-01), Snook
patent: 2704502 (1955-03-01), Rainey
patent: 3134377 (1964-05-01), Kandy
patent: 4026264 (1977-05-01), Henriques

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