Cleaning and liquid contact with solids – Processes – Including work heating or contact with combustion products
Patent
1980-12-01
1983-08-16
Fisher, Richard V.
Cleaning and liquid contact with solids
Processes
Including work heating or contact with combustion products
134 37, 134 38, B08B 500
Patent
active
043989616
ABSTRACT:
A method and apparatus for removing old paint from a painted surface by directing a high velocity heated stream of air onto the painted surface. Pressurized air and a liquid petroleum fuel enter the paint remover housing wherein the fuel is ignited and applied to heat the pressurized air which thereafter flows through a nozzle to exhaust from the device. The pressure of the air entering the paint removing device is in the range of 90 to 100 psi and the temperature at which the air exhausts is in the range of 400.degree. to 500.degree. F. Four embodiments of the paint removing device are disclosed including one in which the fuel mixture and pressurized air are mixed to directly transfer the heat from the burning gases to the compressed air. Also disclosed is a bypass valve for low pressure lighting of the device and flame maintenance, and a gas fuel pressure regulator for controlling the gas pressure by the air pressure.
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patent: 1074755 (1913-10-01), Spira
patent: 1437331 (1922-11-01), Alexander
patent: 2326630 (1943-08-01), Fagan
patent: 2583779 (1952-01-01), Jones
patent: 2652104 (1953-09-01), Prent
patent: 2664945 (1954-01-01), Maresca
patent: 2684531 (1954-07-01), Smith
patent: 3079980 (1963-03-01), Mihm
patent: 3854997 (1974-12-01), Peck et al.
Fisher Richard V.
Ruderman Alan
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