Removable positive shut-off panel

Details Removable positive shut-off panel Removable positive shut-off panel

1994-06-07

1996-01-02

Leo, Leonard R.

Heat exchange

With adjustor for heat, or exchange material, flow

49465, 251901, 454284, 454289, F24F 1308

Patent

active

054799848

ABSTRACT:
A register of a forced air system is sealed by placing a heavy flexible magnetic panel over the register and adhering the entire panel to the entire register for preventing escape of forced air from the register. The flexible magnetic panel is used on wall registers, on floor registers and on ceiling registers.

REFERENCES:
patent: 3831321 (1974-08-01), Johnson
patent: 3894527 (1975-07-01), Ickes
patent: 3951168 (1976-04-01), Roberts
patent: 4389827 (1983-06-01), Van Valkenburg
patent: 4502368 (1985-03-01), Hempel
patent: 4520715 (1985-06-01), Coomes et al.
patent: 4686893 (1987-08-01), Jinkins
patent: 5213543 (1993-05-01), Clarino
patent: 5230657 (1993-07-01), Opoka

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