Economy, angle-blade damper kit

Details Economy, angle-blade damper kit Economy, angle-blade damper kit

1980-12-18

1983-09-20

Makay, Albert J.

Fluid handling

Systems

Dividing into parallel flow paths with recombining

98121A, 251305, F24F 1314

Patent

active

044049900

ABSTRACT:
A novel damper kit is described wherein blade stock having a hook-shaped hinge portion formed therein, and notched angle bracket stock having periodically spaced hook-shaped hinge elements formed therealong can easily be cut and assembled at the job site to custom fit and install a damper in a duct, opening, or plenum.

REFERENCES:
patent: 3606245 (1971-09-01), Reichow et al.
patent: 3793932 (1974-02-01), Tarnoff
patent: 3833989 (1974-09-01), McCabe
patent: 3908529 (1975-09-01), McCabe
patent: 4081173 (1978-03-01), McCabe

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