Asphalt heating system

Details Asphalt heating system Asphalt heating system

1978-10-16

1987-04-28

Paschall, M. H.

Electric heating

Heating devices

Resistive element: igniter type

219486, 219306, 219282, 126351, 2221462, 2221465, H05B 102

Patent

active

046616845

ABSTRACT:
An asphalt heating system is comprised of a fuel fired, flue type tank heater, a heat transfer oil system for heating the oil circulated through the plant, and an electric booster heater for heating the oil and for use as a back-up heating means for the tank heater. Control means are provided for automatically activating the electric booster heater in the event of flame failure of the tank heater.

REFERENCES:
patent: 2969451 (1961-01-01), Logan
patent: 3249303 (1966-05-01), Townsend
patent: 3281573 (1966-10-01), Hynes et al.
patent: 3603101 (1971-09-01), Sullivan
patent: 3622748 (1971-11-01), Sellers
patent: 3681566 (1972-08-01), Sellers
patent: 3804154 (1974-04-01), Asdell et al.
patent: 3838813 (1974-10-01), Brosenius
patent: 3984826 (1976-10-01), Kowalsky
patent: 4141408 (1979-02-01), Garnett

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