Electric heating – Heating devices – With heater-unit housing – casing – or support means
Patent
1984-10-10
1986-12-09
Goldberg, E. A.
Electric heating
Heating devices
With heater-unit housing, casing, or support means
219366, 219535, 219523, 174138J, H05B 306
Patent
active
046281908
ABSTRACT:
A duct heater includes end brackets connected by frame bars. The end brackets are formed into a geometric shape whereby only corners of the bracket engage an inner surface of the duct. Assembly is facilitated by providing the end brackets as thin, flat strips having narrower and wider sections. The frame bars are attached to the wider sections, and when the strips are bent to form a closed geometric form, the thinner sections are curved to form duct-engaging corners while the wider sections remain substantially straight. Insulating supports are attached to the frame bars, and a heater coil is attached to the insulating supports. The structure may be easily slid into a duct because only the corners of the end brackets contact the duct.
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Goldberg E. A.
Lateef M. M.
Tutco, Inc.
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