Electrical duct heater assembly

Details Electrical duct heater assembly Electrical duct heater assembly

1984-08-13

1986-07-29

Albritton, Clarence L.

Electric heating

Heating devices

Combined with container, enclosure, or support for material...

138103, 219366, 219375, 219532, H05B 302, F24H 304

Patent

active

046032479

ABSTRACT:
This duct heater assembly includes a duct section having upper and lower wall portions and opposed side portions. The upper and lower portions include end margin portions connectible to the end margins of conventional duct line section by "S" strip connectors. The side portions include C-shaped flanges connectible to the C-shaped flanges of conventional duct line sections by "C" strip connectors. One of the side portions incorporates a control box having an overhanging end spaced from the side wall of an adjacent conventional duct line section to accommodate the "C" strip connectors.

REFERENCES:
patent: 2712588 (1955-07-01), Epstein
patent: 2956587 (1960-10-01), Fisher
patent: 3029332 (1962-04-01), Cotts
patent: 3102185 (1963-08-01), Boyd et al.
patent: 3440400 (1969-04-01), Cotts
patent: 3631525 (1971-12-01), Brasch
patent: 3794810 (1974-02-01), Brasch et al.
patent: 3851147 (1974-11-01), Hachmeister
patent: 4131787 (1978-12-01), Tyler
"Electric Blast Coil Duct Heaters", by Indeeco, 06/10/1963, p. 30.

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