Toyotomi Kogyo Co., Ltd.

Toyotomi Kogyo Col. Ltd.

Kazuharu Nakamura

Yutaka Nakanishi

Yoshio Mito

Motoki Matsumoto

Toshihiko Yamada

Yoshimasa Tsuboi

Akinobu Kondo

Tooru Yoshino

Kazuhiko Takeuchi

Kenji Nakamura

Akiyoshi Okayasu

Osamu Niha

Kiyonobu Itoh

Yoshio Suzuki

Yuji Sanada

Yoshiaki Hisada

Junzi Mizuno

Kiyonobu Ito

Yukihiro Oguchi

Yoshitaka Kataoka

Oil-fired space heater

A fire-extinguishing device for an open-type oil burner is disclosed which is capable of effectively preventing the discharge of bad odor to a room due to unburned fuel oil gas at the fire-extinguishing of the oil burner. The fire-extinguishing device includes a damper for closing, at the fire-extinguishing, an opening of a combustion cylinder construction of the oil burner through which combustion gas is discharge to a room. The damper or combustion cylinder construction may be provided with an oxidation catalyst plate through which combustion gas is discharged to a room at the fire-extinguishing, so that unburned fuel oil gas may be removed by means of the catalyst plate.

Fire-extinguishing device for oil burner

A safety device for an oil burner is disclosed which is capable of detecting abnormal combustion which forms an excessively decreased flame, for example, sufficient to produce incomplete combustion gas to operate a fire-extinguishing device of the oil burner. The safety device includes an abnormal combustion sensing and actuation mechanism which is adapted to receive heat rays from the oil burner to detect the abnormal combustion and a starting member selectively actuated by the mechanism to operate the fire-extinguishing device when the mechanism detects the abnormal combustion.

Safety device for oil burner

Vacuum cleaner

A process of forming a cylinder wall of a burning cylinder for use in a heating apparatus which comprises forming an enamel pattern on the surface of a base made of a transparent or translucent and highly heat resistant material; forming thereon a metal or metallic compound layer that is 0.1 to 0.5.mu. in thickness and high in transparency; and thereafter heating the same as a whole to enamel the pattern and the layer.

Process of forming cylinder wall of burning cylinder for use in heating

The fuel supply system includes an air pipe which is connected between a fuel oil supply pipe and an inlet side of a forced air passage and is provided at a middle portion thereof with an elevation positioned above any portion of the fuel supply pipe between the air pipe and a pot of the oil burner. The fuel supply system may include an outflow prevention mechanism wherein the elevation formed at the air pipe is above the elevation of the fuel supply pipe and a return pipe, and the return pipe has an elevation positioned between the elevation of the air pipe and that of the fuel supply pipe and is connected between the oil reservoir and the fuel supply pipe.

Fuel supply system for oil burner

A fire-extinguishing device for a wick ignition type oil burner adapted to discharge combustion gas to a room is disclosed which is capable of effectively removing bad odor generating materials contained in combustion gas produced during the fire-extinguishing operation to prevent the discharge of bad odor to a room. The fire-extinguishing device includes an actuation mechanism actuated with a wick actuating mechanism of an oil burner at the fire-extinguishing operation to lift a combustion cylinder construction of the oil burner and a combustion gas clarification mechanism which carries a catalyst thereon and is adapted to sealedly fit an upper portion of the lifted combustion cylinder construction therein so that combustion gas produced during the fire-extinguishing operation may be passed through the catalyst to remove, from the combustion gas, bad odor generating materials contained therein.

A wick actuating device of the lever actuation type for an oil burner is disclosed which is capable of not only vertically moving a wick but variably setting the ignition position of the wick as desired. The wick actuating device includes an operation lever loosely fitted on a wick operating shaft, a shaft actuation lever fixedly fitted on the shaft and a connection mechanism for connecting both levers to each other. The connection mechanism includes a slit formed at the operation lever and a pin slidably mounted on the shaft actuation lever and movably fitted in the slit. The slit is formed to be oblique with respect to the sliding direction of the pin so that the operation lever is engaged with the shaft actuation lever through the slit and pin at an angle which is varied depending upon the position of the pin in the slit.

Wick actuating device for the lever actuation type for oil burner

A safety device for an oil burner is disclosed which is capable of carrying out the detection of flame by means of a DC flame current obtained due to the rectification of flame to detect the abnormal combustion in the oil burner. The safety device includes a first flame electrode surrounded by flame of normal combustion in the oil burner and a second flame electrode arranged away from the flame and connected to an AC voltage source in a manner to be in parallel with the first flame electrode, so that the second flame electrodes cooperates with the first flame electrode to detect a failure in the flowing of a flame current through the first flame electrode or a decrease in a flame current flowing through the first flame electrode, to thereby determine any abnormal combustion in the oil burner.

Growing community of inventors

Nagoya, Japan

Kazuharu Nakamura