Locking chimney cap

Details Locking chimney cap Locking chimney cap

1990-05-19

1993-07-20

Makay, Albert J.

Ventilation

Chimney or stack

Chimneytop or stacktop structure

454 14, 24495, F23J 1300

Patent

active

052288820

ABSTRACT:
A chimney cap for installation on a chimney, comprising a lid assembly, a bracket for supporting the lid assembly, and revolving clamps pivotally connected to the bracket for releasable attachment to various dimensions of chimney flue tiles. The clamps are pivotable for rotation between a first position for accommodating a first dimension of chimney flue tiles and a second position for accommodating a second dimension of chimney flue tiles, the second dimension being larger than the first dimension. The clamps each comprise at least two oppositely disposed spring loaded cam action toggles for gripping opposite sides of the chimney flue tiles irrespective of the thickness of the tiles.

REFERENCES:
patent: 101062 (1870-03-01), Thompson
patent: 580588 (1887-04-01), Waters
patent: 621475 (1899-03-01), McCormick
patent: 878811 (1908-02-01), Lincoln
patent: 1197803 (1916-09-01), Dierks
patent: 1305353 (1919-06-01), Gipson
patent: 1520716 (1924-12-01), Judd
patent: 4549473 (1985-10-01), Alexander et al.
patent: 4697500 (1987-10-01), Hisey
patent: 4716811 (1988-01-01), Johnson

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